Question about 2000 Mitsubishi Galant
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Posted on Jan 02, 2017
P1689 No Communication between ECM & Ins
P1689 - Indicates a Data link failure between ECM and fuel injection pump. Low power, engine dereated or engine stops.
Posted on May 13, 2009
what you want to do is take it to nissan and scan it with the consult2 diagnostic system to tell you which of the many things in the system have failed.
the EGR is the most common.
Posted on May 28, 2009
You have to reprogramm
the ECM. Here is a bulletin for this problem.
Service Engine Soon Light On, P1680 (Reprogram or Replace PCM)
2004 Buick Rainier
2004 Chevrolet Trailblazer
2004 GMC Envoy
2004 Oldsmobile Bravada
with 4.2L Engine (VIN S - RPO LL8)
Some customers may comment on the Service Engine Soon Light coming on. Upon investigation, the technician may find a P1680 diagnostic trouble codeCheck the resistance of the accelerator pedal position sensors using the procedure in the appropriate Service Information for DTC P1680.
If the resistance of the accelerator pedal position sensor is within the specifications shown in the Service Information and the vehicle was built prior to the following VIN breakpoints, then reprogram the PCM with the latest calibration.
If the resistance of the accelerator pedal position sensor is within the specifications shown in the Service Information and the vehicle was built after the following VIN breakpoints, then replace the PCM. If the resistance of the accelerator pedal position sensor is outside the specifications shown in the Service Information, then continue with the diagnostics for DTC P1680.
• Vehicles built at Oklahoma City Assembly Plant - 46192755
• Vehicles built at Moraine Assembly Plant - 42315833
Hope help with this (remember rated this).
Posted on Jul 09, 2010
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