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2007 Saturn Ion-2 2.2L Reduced power mode
Posted to GM Driveability on 2/15/2010 4 Replies

TAC system keeps setting P2138 with a reduced voltage on APP1. With a new APP and system working we were able to record a scope pattern that shows APP1 almost always double the APP2 voltage. When it fails, sets code, and is in power reduction mode, the APP1 st...

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  Related Documents & Media  2007 Saturn Ion-2

 
Message Closed w/FIX

car Vehicle Data

2007 Saturn Ion-2

VIN 1G8AJ55FX7
Engine2.2 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsReduced Power Mode
OccursIntermittently

Trouble Codes

P2138Accelerator Pedal Position Sensor 1/2 Incorrect Voltage Correlation
Message Closed w/FIX

car Vehicle Data

2007 Saturn Ion-2

VIN 1G8AJ55FX7
Engine2.2 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsReduced Power Mode
OccursIntermittently

Trouble Codes

P2138Accelerator Pedal Position Sensor 1/2 Incorrect Voltage Correlation