This is a repair and return service for Nissan Pathfinder (2000-2003) ECU Repair, years 2000 2001 2002 2003 . A faulty ECM may cause the vehicle to experience a reduction in fuel efficiency, power, acceleration. Fill out the Repair and Return Form and send us your unit today. I am having similar issue...2001 pathfinder...new Idol Control Valve and ECM installed, but the individual didn't change the ignition\Immobilization unit that came with the new EMC, he only changed the chip, which activated the Immobilization system, so it cranks over but won't start. 2001 Nissan Pathfinder QX4 ECU PCM Engine Computer w/ Key Immobilizer MEC14-340. Below is a helpful guide to determine if you have a faulty ECU. The Most Common ECM Failure Symptoms. 4. 1. Circuit Board Medics can repairs 2000, 2001, 2002, or 2003 Nissan Pathfinder ECM / ECU having idle Air Control Valve issues and/or P0505 trouble code. Posts: 2 2001 Pathfinder Replacing ECM. Thank you for choosing Module Experts Nissan ECM Repair service. Pathfinder Nissan Pathfinder Discussion Forum Thread Tools: Display Modes #1 03-12-2016, 10:21 AM dave116. A bad ECM may lead to a vehicle that won’t or is difficult to start. Nissan ECM Repair. I have read up on different forums and am a little confused. Free shipping. 2001 Nissan Pathfinder AT Engine Computer Control Module ECM ECU PCM MEC14-341. We can save you the time and money by testing your ECU DME before spending on costly diagnostic labor and sensors. $129.99. Description. Module Experts provides a full line of options for Nissan ECMs. Car Not Starting. If the ECM fails completely, it will leave the vehicle without engine management control, and will not start or run as a … $219.90. In order to have the information it needs to do the job effectively, your ECM relies on information from dozens of sensors. 2001 Pathfinder Join Date: Mar 2016. For this reason, ECM failure symptoms actually lead to a broken sensor or faulty wire, rather than failure of the ECM itself. ... We’ll take a look and remove the review if it doesn’t follow our guidelines. If you confirm that the Electronic Control Module (ECM) needs to be replaced on a 2000 MY or later Nissan vehicle, or a 1999 MY vehicle Frontier (D22), Quest (V41) or Pathfinder (R50) from VIN JN8AR07**XW350101, complete the actions listed in this Tech Tip. • ECM Reprogramming is available to update the ECM of selected 1999, 2000 and later Nissan vehicles when it is determined to be necessary to do so. • ECM Reprogramming allows the vehicle ECM operating program to be upgraded to the latest operating specifications without removal or replacement of the ECM. 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