Question about 2006 Pontiac Montana SV6
You have to scan the OBDII for codes first. Most likely throttlebody issue
Posted on Jun 21, 2015
HAVE YOU REPLACED THE AIR-FILTER RECENTLY?
Posted on Jun 17, 2015
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Posted on Jan 02, 2017
SOURCE: 2005 Montana Sv6 3.5L on
Some customers may comment on an intermittent malfunction indicator lamp (MIL) being Illuminated with a message or an indicator that displays Reduced Engine Power.
The technician may observe on a scan tool DTC P2138 - Accelerator Pedal Position (APP) Sensor 1-2 Correlation set as Current or in History.
CauseThis condition may be caused by water intrusion into the instrument panel (IP) to body harness connector, which carries the APP sensor signals to the ECM/PCM. This water intrusion results in a voltage difference between APP Sensor 1 and APP Sensor 2 that exceeds a predetermined value for more than a calibrated period of time, setting P2138.
Note: Aftermarket equipment can generate DTC P2138 and/or other DTCs. This is as service bulletin I located. Is there any additional codes present.Would definitely check that harness connection for corrosion and is vehicle running poorly?
Posted on Jun 23, 2011
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