Eligibility:

• Mercury 225 efi throttle position sensor. Tech checked it out anyway and ended up replacing fuel pump due Jun 23, 2009 · Before 2001 the 240 Mercury did not have a crankshaft position sensor, but used a trigger assembly mounted under the flywheel. Sign In Upload. Pickup or normally ships: Warehouse transfer - on 2nd-7th business day. mrclean1. 0L EFI) > 0G129222 - 0G760299 (USA) > Flywheel / Stator Dec 8, 2023 · Find many great new & used options and get the best deals for 200, 225, 250 300 hp Mercury 821664 Throttle Position SENSOR ASSY & bracket NLA at the best online prices at eBay! Free shipping for many products! Possible missadjustment of Throttle Position Sensor or linkage. 28 vol Jun 8, 2011 · Engines. As your car idles, there should be relatively little movement in the position of the throttle. I was able to watch the technician adust the TPS with what looked like an Ohm meter device. Your boat should do similar if not better. #1. Disconnect battery cables at the battery. Install shaft. Erratic resistance (unplugged) through all rotation. My 200 EFI turning a 25" 4-blade @ 6200 will give me 69 MPH at 2. Guaranteed fitment for 313 different models. I have jumper wires in place on the tps harness, port side temp sensor disconnected, safety lanyard in place and key on all as the manual states. Lubricate alignment tool (91-11230) and shaft. Manufacturer: Mercury Marine. *Stock Laser Injected Mercury motors use a TPS value up to about 3000 RPM, so may be less affected, depending on severity of the problem. Visit MarineEngine. Check Details. I am getting intermittant temp and oil lights along with the beeping. They are susceptible to water ingress which causes corro Aug 5, 2018 · This is based on the TPS (Throttle position sensor). Code tables are in the service manual and is often posted in other threads on this site. 18-7668 - Sensor, 854445 [ More info] $84. How does the TPS work and what is its purpose? Does it affect timing, fuel/air mixture? Oct 6, 2008 · 13. On a good running setup, 3mph is reasonable for about $600. Didn't want to highjack any threads so starting new. Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement parts and accessories. This is on a 21' Checkmate weighing 1450 lbs. 4. Electronic Jul 14, 2013 · Connect the positive test lead of my Fluke Meter to the pink wire on the TPS. The throttle body is usually mounted on the intake manifold and is connected to the throttle plate or butterfly valve that controls the amount of air entering the engine. 0 - 4. 00 to 5. Dec 30, 2013 · XX <- Jumper these two together to read EFI codes, set throttle position sensor or to set Throttle range. first [easy] thing to check is the air gap on the crank position sensor under the flywheel. Once I get it going good and I leave the throttle alone, it will run just fine like Aug 9, 2014 · Have a Mercury Marine outboard question. Serial # XXXXX 1997 Mercury 200hp EFI with the ECU fuel module # XXXXX Installation is motor not running, because you unhook the port head temperature sensors tan/blk wires (2 Model 3 Liter Work/225 EFI/250 EFI Powerhead Front View. 29. Mercury 3. 95V with throttle at idle (lowest it will go is 3. The TPS is meant to allow the ECM to determine the throttle blades position and compare it to other sensors as well. Feb 14, 2019 · The replacement throttle position sensor (TPS) must be correctly aligned on the throttle lever bushing. 0L EFI) > 0G760300 - 0T408999 (USA) > Oil Injection Components Jan 3, 2008 · Thread Tools. (17) Oil PSI CKT Hi Yes 2 Bp/min 90% Short, defaults to 51. 881070T SENSOR, Position has been superceded to a new part number. Quantity: Add to Cart. Unplug your temp sensor wire, turn the key read the voltage. We guarantee fitment for this product. 065 volts. 1. Engine burns same amount of oil as the other. I have tried to test my Throttle Position Sensor, (without the harness, using two strans of cat 5 wire) and the reading are Replaces: Mercruiser 805226A1 / Volvo 3855184. I would assume it is the same for boat ECM's as well. could someone please show me where to set my meter to acquire the proper reading. 00 ranges. It was running smoothly when, out of nowhere, it started missing. For idle, the ECU will control the revs, to the speed programed in as ‘idle’ by setting the amount of fuel injected based in the current engine speed, and adjusting the amount of air Stock status: Not in stock - will be transferred from factory. Connect the negative test lead to the orange wire. com to make adjusting the TPS quick and easy. . Jan 12, 2016 · Bad Throttle Position Sensor Symptoms. 4 - 1. 2008 Mercury 90hp 4-stroke EFI Model # 90ELPT4S Serial # 1B392864I believe … read more Aug 7, 2016 · Today we're replacing, and adjusting, a throttle position sensor. a spark at key on/off means you got power at the computer and coils, but the puter is not 'triggering' the spark. By connecting a workshop pc, it revealed a malfunction on the TPS sensor. If the TPS output is within the limits specified in the ECU, then the engine is assumed to be at idle. Opened the gap up a bit to . 020”). Sep 17, 2020 · This troubleshooting information is meant to help trace and correct faults relating to the throttle position sensor on 2000+ Mercury 150 175 200 horsepower EFI engines with a starting serial number of 0T409000 and above. Dec 17, 2002. I know this can usually mean low/no oil, overtemp, sensor out of range, or? Jun 30, 2006 · 47. Running break-in oil in the tank, the motor starts good, idles fine, but when I try to get on plane, it bogs out at 1800 RPMS. Jan 10, 2013. 73l outboard pressure sensor 82765Buy mercury 100hp, 115hp & 125hp outboard tilt & trim unit 100,115,125 . 10+ In Stock. posted 06-17-2008 10:41 PM ET (US) My 1998 Mercury 225 EFI is not firing on cylinders 1, 3, and 4. Please note the new superceded part is a functional replacement and may look differant from the original part. You jumper the same two wires to read and clear EFI Stored or Active Codes ACXX ECXX,or SCXX where xx is some number representing some EFI or sensor fault. As long as the ECU, Crank Position Senor and Throttle Position Indicator are functioning properly, the maximum timing will be correct. 8K. This condition is described by the operator as an Jun 1, 2011 · 225 Optimax Throttle Operation. Align tilt ram and housing using alignment tool. 51348 51352 Alig. If you start to experience engine misfires, stalling, or rough idling when the car is stopped, it can also be a warning sign of a bad TPS. Set voltmeter to 2 DC volts. 3 times in the last couple of weeks, after a few minutes of idling, when i try to get on plane the motor just bogs down. Rough Idling. Air temperature sensor test OK, reads 16K. Model 3 Liter Work/225 EFI/250 EFI Powerhead Starboard View. TPS2_RangeLow: 311: Throttle position sensors A and B: 6: The device, calculation or process detected a fault. At some point in the day when I start the motor it seems to be running rough (maybe running on less than 6 cylinders). So I look at the book an the specs for the TPS state @ Idle voltage should read . Our products provide accurate and reliable information that allow motorsport teams to gain a real-time insight into the performance of their cars during Sep 7, 2015 · Get two small strands of copper, pull the three wire (if I remember right, been years without my promax, orange, brown, blue) apart, stick one strand in each female port (2) and plug it back together. there is a toothed ring under Dec 16, 2002 · 7. It should be slightly open, allowing in just enough air to keep the car running at an idle. Trying to replace TPS sensor, but brand new sensor won't adjust to . optimax throttle position sensor?? I have a 2006 Mercury racing optimax 250xs. This short video covers the instillation and calibration of a new TPS unit Mercury Outboard Throttle Position Sensor 821664 3. IMPORTANT: TAN/BLACK head temperature leads must be disconnected from port cylinder head before adjusting TPS. 99. supposed Feb 3, 2022 · Here are some of the most common symptoms of a bad sensor. The symptons are: When I start the engine from cold, I allow the engine to warm up at idle. 5 Volts. I had the boat at a reputable shop where i live and they tried all sorts of troubleshooting ,The fuel vapor separator was pulled apart and cleaned,The Apr 27, 2021 · Trigger was within 900-1300 range. Free shipping. Summary of Contents for Mercury 225. Sep 23, 2017 · Sometimes at idle switching in FWD and REV while docking it will STALL. Set the scan tool to TPS voltage (or connect DVM) then set the adjustment screw for the lowest value & still touching the throttle arm stop. Apr 25, 2006 · Apr 24, 2006. May 21, 2012 · This test on the new installation from Mercury on the TPS sensor instructions that came from Mercury Marine in the box, is the same as the Mercury outbd service manual. I found a Merc bulletin ( Service Bulletin 96-3) that somewhat sounds like your problem. I tested the TPS sensor with a Digtal meter. 0L EFI) Oil Injection Components Revise Search: All Models > 225 HP (3. A throttle position sensor, or TPS, is a device which is used to monitor the air intake of an internal combustion engine. Satisfaction rating 5 out of 5 ( 7 Ratings ) $147. The Guardian feature keeps the rpm down to save the motor. i) MAP Sensor (3. com for Mercury Quicksilver 821664 - Throttle Position Sensor 821664 price, stock and delivery options to May 15, 2011 · A digital voltmeter should be used when making adjustments to the TPS. 11 vdc. Re: 225 efi merc powerhead problems. Jun 9, 2008. Manufacturer part number:881070T. You will also learn about the function, 225 EFI (4-STROKE) Back; 225 EFI (4-STROKE) - 0T653945 & Up Mercury-Mercruiser 849903 Sensor Throttle Position. After all that [my 1998 Mercury 225 EFI] is still missing Apr 1, 2016 · Engine specs: 5. 71 vdc. I just purchased a proline 2950 with twin merc 225 EFI offshore 1996-97 model. I built one in high school (9ft. TPS: 805226A1. If you keep your foot in it, it will finally die, but you can Aug 15, 2019 · trying to set the tps on the mercury 240 efi. 035” just to be closer to the middle of the tolerance range. @ WOT 4. This loss of performance has mainly been experienced on light fast boats. Jan 28, 2009 · Throttle Position Sensor Problems. 83295211 INDICATOR Throttle Position. The roller appears only slightly worn and I can't really tell if the cam Hello Everyone. First of all motor was just fine when put away last season, first spring start on the muffs I have encountered a constant steady beep motor running or not. The correct meter reading is 0. 7 Mercruiser EFI Stern Drive, Bravo III. If I raise the motor 1/2" I lose 6 MPH. MSRP: $110. Manufacturer part number: 805226A1. I have a Merc 115 4 Stroke EFI outboard and it started to act weird. The ECM needs to see a minimum voltage at closed throttle. The oil mounted on the engine is full and the caps are tight. Turn the ignition ON, but do not try to start the engine. The motor seems to be in a sort of safety mode or something. #4. I am new to the formus, but not to jet boats. Aug 1, 2021 · In this video I will show you how to adjust and set the throttle position sensor on a 2002 Yamaha OX66 225HP per the factory spec . #2. I had the same symptoms with my 2001 150HP Optimax. All of us at Mercury Marine took pride in building your outboard and wish you many years of happy and safe boating. Loosen screws (1) securing TPS to manifold. . (18) Oil PSI CKT Lo Yes 2 Bp/min 90% Open, zero oil pressure. 08. 040” +/- 0. Need a little help guys 2002 225 EFI (OT542977). Disconnect TPS from EFI harness. 17 $158. By keyturn/ignition, the throttlebuzzer beeps 6 times, indication either TPS og MAP sensor failure. View online or download Mercury 250 EFI Service Manual. 75. Model 3 Liter Work/225 EFI/250 EFI Powerhead Port View. Order Mercury Mariner Throttle Position Sensor (TPS) online today. The engine in question is a 1998 Mercury 225 EFI. make sure you have enough copper left sticking out to wrap around your test leads. just May 30, 2023 · 2008 mercury efi 115 4 stroke 1. May 6, 2019 · Sweet tool by TPStool. GTIN: 745061278240. 58055 a b a - TPS Connector b - Throttle Position Sensor 2. This may be . wen i try and get the boat on plane it just boggs down and will not tach up. I had all six injectors refurbished, [installed] new plugs, and [installed] a new throttle position sensor (TPS). Mercury 200 225 250 300 HP 821909 Sensor Assy EFI TWO STROKE 1994-2002. I have had this problem for the last 18 months occasionally at first (maybe once every 2-3 fishing trips), but now happens at least once every bass tournament. 048 volts idle to 5. This goes smoothly everytime. Check Details Apr 4, 2016 · Throttle position sensors are one of the common causes of surging, stalling and poor engine running. 7 psi. I have tried to test my Throttle Position Sensor, (without the harness, using two strans of cat 5 wire) and the reading are Apr 11, 2023 · Apr 11, 2023. This manual has been written and published by the Service Department of Mercury Marine to aid our dealers’ mechanics and company service personnel 4. Fitment Assurance. View and Download Mercury 150 EFI service manual online. This TPS had been replaced 3 years ago for $230 (parts only), I do all my own work. Weight: 0. 7 vdc. I assume the really cheap versions are off-shore knock-offs, and Throttle, Gear & Pedal Position Sensors & Parts. They also pressure tested the fuel rail. 0L EFI) | 0G760300 THRU 0T408999 | Fuel Management System - Mercury Outboard Motor Parts - Van’s Sport Center Jun 10, 2008 · Messages. Aug 2, 2006 · Any suggestions, is there an in gear idle adjustment, or a throttle position sensor. 022” which is within spec at . Mercury Outboard 135HP 135HP DFI 1B417702 & Up Cylinder Block and End Caps. Broken or Chipped Reeds: Will cause erratic engine vacuum, particularly at idle. After both engine failures they broke down each injector, inspected, and manually fired each one. Sep 12, 2007 · Having some work done to the intake and reed blocks gives a little more and changing the crank angle sensor bracket helps give the motor more timing as the stock 225's got a lousy 26 degrees at 5000 rpm. 0l efi) outboard motor parts by component and buy discount parts from our large online inventory. A throttle position sensor (TPS) is a sensor used to monitor the position of the throttle in an internal combustion engine. This is an OEM part manufactured by Mercury Marine. Mercury Outboard 150HP 150HP Pro XS 1B690542 & Up Cylinder Block and End Caps. The maximum spark timing is controlled by the ignition ECU and is non-adjustable. 09. 49-0. Mercury Marine Parts for Mercury Marine 225 HP (3. Plug the cable leads into the TPS sensor. Sep 2, 2007 · MARINER AND MERCURY 1995 and 1996 225 HP, (3 Litre) EFI S/N 0G129222 thru end of 1996 Model Year There have been some reports of a lack of performance at wide open throttle on the 225 HP, 3 Litre EFI outboards. You save $11. MAP Sensor Hose or Fitting: Clogged or leaking MAP sensor hose or fitting. Lookup Mercury Marine 225 hp (3. You are correct you should be seeing 70 MPH with that setup. Turn the key to the “ON” position. Jan 29, 2006 · However, the TPS setting does not effect WOT as stated earlier. MARINER AND MERCURY 1995 and 1996 225 HP, (3 Litre) EFI S/N 0G129222 thru end of 1996 Model Year There have been some reports of a lack of performance at wide open throttle on the 225 HP, 3 May 1, 2016 · Following on from a couple of previous videos covering the testing of these units. comOr Amazon:https://amzn. If you found a few loose parts, go through the manual and check the adjustment on the affected parts to make sure they are setup properly. I have read most threads on the oil issues and cannot find anything wrong. 0L EFI) Flywheel / Stator Revise Search: All Models > 225 HP (3. Check out free battery charging and engine diagnostic testing while you are in store. The sensor is usually located on the butterfly spindle so that it can directly monitor the position of the throttle. The more I play with the throttle the more power it can get out of it. EFI Hardware is proud to be a trusted name among customers searching for top-quality motorsport throttle position sensors for their vehicle. I changed the sensor, and the failure/beeps for EFI engines and 0. Quicksilver is part of the Mercury Marine family of companies. Model 3 Liter Work/225 EFI/250 EFI Powerhead Aft View. Thread starter 1999 OPTIMAX 200HP THROTTLE SENSOR only one tps on 99 opti 200not pair. 51 volts at closed throttle. Haven’t had a chance to run since this adjustment but I doubt it’s going to make a difference. Get your tool here https://www. Compression is good (all between 115 and 120 psi). TPS2_RangeHigh: 25: The input circuit for the sensor is below the valid limit. #15 : 858535: SENSOR ASSEMBLY, Temperature (1 required per assembly) Find Sensor Assembly - 13221T01 here. Jul 21, 2018 · Mercruiser Part #'s are: (engine S/N's are in my sig below) MAP: 864856A1. 5. The sensor I had would only adjust between the readings of 3. The throttle position sensor is gone on my 95 Zr 580 EFI and I was looking around for a used one. Recently had a new powerhead installed on my 2001, Mercury 225 EFI. 07-24-2017, 08:05 PM. Web Price: $104. Jul 25, 2013 · Re: 2006 50HP 4 stroke EFI Rough cold idle and surging (and stalling) at low rpm You may want to check the TPS (throttle position sensor) while the problem is occurring It didn't throw a code on my 115 but was out of spec while problem was occurring The TPS (Throttle Position Sensor) is the sensor that monitors the position of the butterfly valve of the throttle, allowing it to communicate with the computer so that it can adjust the injection and control the mixture of air and fuel. Water sensor tested good, also reading 10VDC at connector. Jun 27, 2020 · 2000 Mercury 225 EFI 2000 Mercury 225 EFI. Can even pull it into neutral, and it will idle, but still wont rev over 6-700 rpm. I have a 1996 Mercury 225 efi. @ Idle . I know the MAP sensor is a GM part that you can get for a fraction of the Mercruiser price. Aug 22, 2019 · 2000 Merc 225 EFI alarm. It starts fine but has a bad loss of power. Apr 11, 2023 · The throttle position sensor (TPS) on a 60-horsepower Mercury four-stroke engine is typically located on the throttle body, which is part of the air intake system of the engine. Carefully follow these instructions to ensure correct procedure. Throttle body injection. Page 461 POWER TRIM TILT RAM ASSEMBLY INSTALLATION 1. Find many great new & used options and get the best deals for Oem* 0720p20 Mercury Quicksilver Throttle Position Sensor 821664 at the best online prices at eBay! Free shipping for many products! Summary of Contents for Mercury 25 EFI. TPS Mercury part # 832952-11. Took it over to a place near Columbus and of course the alarm would not "go". Connect digital using TPS Test Lead Assembly (a) (P/N 91-816085) between TPS connector (b) and EFI harness connector (c). It uses the sensors to monitor specific engine parameters and make changes to those based on the information it is receiving about the engine’s operating conditions. Engine serial number 0M033393. Anyway, had an alarm going off this spring that the manual said was either throttle position sensor or internal temp sensor. Use Quicksilver Power Trim and Steer- ing Fluid. Plug in the scan tool to the ECM. May 16, 2006 · Mercury & Mariner Outboards . Jun 2, 2009. Low oil switch tested OK, checked wires to ECM connector - Good. 849903 Throttle Position Sensor TPS Apr 27, 2021 · Trigger was within 900-1300 range. Oct 8, 2016 · Really kinda weird i know. I believe the TPS is also a GM part. Nov 24, 2023 · 2. This is seemingly the most wrongly adjusted sensor on the EFI engines as it's purpose is not often understood. I already changed the fuel filter and plugs, new fuel constantly. If you have a late model motor with the SmartCraft "Guardian" feature, the problem might be insufficient water pump pressure and/or a bad thermostat on one bank of cylinders. The Crank Position Sensor should be gapped at 0. Model 3 Liter Work/225 EFI/250 EFI Powerhead Top View. Throttle Position Sensor Nov 16, 2020 · The ECU controls the fuel mixture, idle speed, ignition timing, and in some cases, valve timing, and drive-by-wire throttle-body if so equipped. I had the job of moving the throttle from idle to WOT as he took the readings and adjusted the TPS. Engine Won’t Idle Smoothly, Idles Too Slowly, or Stalls. 2000 Mercury 225 EFI . 50 Available to Order: Usually ships within 10 days. 2. (15) MAP Sensor 1 Input Low No 2 Bp/min 90% Open, no visual on SC1000. Page 1 This manual has been prepared to assist you in the operation, safe use, and care of your outboard. Warranty will probably not cover it due to it was most likely done the shipping process. I have no idea on the efi's and the local mercury dealer raised rates to $95/hr to trouble shoot it which I think is ridulous. 51369 Alignment Tool (91-11230) Shaft 2. Model 3 Liter Work/225 EFI/250 EFI Powerhead Front View. 72 4 In Stock. 0 L EFI. 225 HP, (3 LITRE) EFI Models Affected MARINER AND MERCURY 1995 and 1996 225 HP, (3 Litre) EFI S/N 0G129222 thru end of 1996 Model Year There have been some reports of a lack of perfor-mance at wide open throttle on the 225 HP, 3 Litre EFI outboards. Connect digital volt meter using TPS Test Lead Assembly (a) (P/N 91 Apr 12, 2005 · 4. I have seen parts and pricing raging from about $10 to $90. Disconnect the TAN/BLACK engine head temperature sensor leads located on the port cylinder head. A mercury rep has come down both times and inspected Aug 7, 2007 · Ah, The TPS Or Throttle Position Sensor, is located on the upper intake on the throttle shaft. 5" under the pad. I have a 1999 Mercury 200 EFI. Oct 6, 2008. Adjust sensor until correct reading is attained. I found one for a 95 Wilcat but when I look the part numbers up they are different. Offering discount prices on OEM Mercury Marine parts for over 50 years. 040” for Carbureted engines. I just bought a 2002 225 and got it all installed on my boat but I am having a terrible time getting it to run! I narrowed the problem down to the TPI throttle position indicator and bought a new one $180 smackers! Same problem! When the TPI is plugged in the voltage is 5 volts Full throttle! Oct 6, 2008 · 13. 25. Free Same Day Store Pickup. Page 1 25 / 30 EFI & 25 EFI Jet S E RV I C E MA N U A L Page 3 NOTE: Indicates information that helps in the understanding of a particular step or action. 00. But when I play with the throttle it comes back to life. Repair Difficulty Easy Apr 12, 2023 · In this video, we'll discuss the common bad Throttle Position Sensor symptoms (TPS) and how to Reset/Recalibrate it. ACU will receive the wrong manifold pressure value. Good afternoon, looking for some advice diagnosing my 225 EFI warning horn issue. Product Shipping specifications = pounds and inches. 06-01-2011, 05:05 PM. We offer the largest selection of old stock, Quicksilver original parts and quality discount aftermarket parts by Sierra Marine, Mallory Marine, and CDI Electronics. Also, both breakin periods i mixed my fuel 32oz of oil per 6 gallon of gas plus my oil injection. I assume the really cheap versions are off-shore knock-offs, and Mar 27, 2017 · 2000 Mercury 200EFI intermittent loss of power, SN 0T158142. 0L only) j) MAP Sensor Manifold Hose k) Needle & Seat l) Water Separator m) Water Sensor n) Pulse Fuel Pump o) From Fuel Tank p) From Oil Pump q) Vapor Separator r) Manifold Bleed Hose to VST s) Vapor Separator Float t) Electric Fuel Pump u) Manifold v) Injector Wiring Harness w) Final Filter x) Armature Notes For Mercury 75HP-225HP Outboard Motor Water Pump Impeller 47-89984T4 47-803631T. 821664 - Throttle Position Sensor. Mercury Outboard 150HP 150HP DFI 0T801000 THRU 1B226999 Cylinder Block and End Caps. An out of adjustment TPS or throttle could affect your starting. Page 2 Warranty Message The product you have purchased comes with a limited warranty Apr 20, 2008 · I just purchased a 2005 sea chaser boat that was supposed to be in perfect condition, but today on her first trip out the alarm sounded immediatly. Please help!!!! Genuine OEM Part. ) Jan 25, 2018 · I get the dreaded 4 beeps from my motor, here is what I have tried: 1. 30. w/ 82 hp snowmobile engine) to my present Seadoo 2001 Challenger 2000 w/ Merc 240 EFI. Buy your Mercury outboard motor parts online from experienced boat specialists at Van's Sport Center! Mercury | MERCURY | 225 (3. 0L EFI) > 0G760300 - 0T408999 (USA) > Oil Injection Components Jan 11, 2013 · 2. When I rev up the engine, either in neutral or under load, the engine works fine. Some vehicles also include a similar sensor in the accelerator pedal called “APP sensor”. 30. 0l 225EFI. 020”. to/3RCUMZG Jun 3, 2021 · (14) MAP Sensor 1 Input High No 2 Bp/min 90% Short, no visual on SC1000. 31. $150. $59. $9. Mar 23, 2001 · Re: Mercury 225 EFI will not start Brown if i remember correctly this ignition system has the ignition coils making ground through the computer tomake a spark. Fits: MCM / MIE V6 & 305, 350, 454, 502 EFI. Idling aroun it was beeping in a four beep sequence, but anything over 2500rpm it shut down the power and sounded a constant beep. tpstool. The throttle on my 2001 225hp Optimax has a very hard to operate spot just as the plastic/nylon roller on the throttle body lever starts to move away from the closed position on the cam (even with cables disconnected). Re: Mercury 225 EFI rpm problem. Refer to the appropriate Evinrude E-TEC Service Manual before attempting any service repairs or part replacement. Jun 10, 2009 · Messages. Fuel components are good (new fuel line, new in-line racor, new fuel filter, clean fuel pump screen, good fuel pressure, etc. Need to replace the Crank Position Sensor but need help finding it on parts diagram. It idles great but when used above idle the alarm sounds. 32. Dual_TPS_Faults: 331: Throttle position sensors A and B difference: 6 Jul 22, 2019 · Hi all boaters, I am the owner of an Mariner/Mercury 60 EFI 2004 model. im all set to go and am not the greatest at electrical testing. Optimax trim sensor broken ( i think) - The Hull Truth - Boating and. Jun 30, 2006. (7%) Cross Ship Possible delays. 99 $76. 0 EFI Alpha. I have a bad TPS. Head temperature sensor, good, reads 1. 1999 OPTIMAX 200HP THROTTLE SENSOR. The newest part number is 8M0125617 -click here- to see the newest superceded part. SENSOR, MAP (1 required per assembly) 854445 - MAP Sensor Manifold Absolute Pressure [ More info] $124. (16) MAT Sensor Yes 2 Bp/min 90% Open or short in MAT circuit. 040” (+-. On my 350 TBI it is 0. 3. 3V) and when I open the throttle the voltage goes down instead of up. The tiny little plastic arm on the TPS (where the metal rod connects to the plastic sensor) was broken when I got the engine. If it is a faulty throttle position sensor, you definitely don't want to wait to get this checked out. The sensor detects the opening and closing of the throttle valve and feeds that info to the Jun 10, 2008 · Messages. I am trying to troubleshoot a low hour (around 400h), year 2000 Mercury 200 EFI, SN 0T158142. Gap was at . Throttle position sensor B: 24: The input circuit for the sensor is above the valid limit. 045-. Turning the sensor within this adjustment range will change the output voltage. I noticed that they are all the same from 93-96 on the 580s and the 96 Wilcat, but not the 95 Wilcat. Never done it on a boat, but on a vehicle there is a little adjustment in the sensor mounting bolts. 8329521 Mercury 2001-2010 Throttle Position Sensor 75 90 110 115 + HP 1. 3 vdc and @ WOT 4. qs ll oz bo ox dc kb ez gj jx