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P1271 Diagnostic Trouble Code Discussion for April 2007

Air Fuel Sensor (Bank 1 Sensor 1) Circuit No Activity

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Trouble Ticket Help Requests for DTC P1271
Help Request Posted
2002 Chevrolet Trailblazer LS 4.2L MIL Lamp on, power loss VIN: 1GNDT13S12
P1271: Accelerator Pedal Position Sensor 1-2 Correlation. ... 1st time it had code p1271 accelerator position sensor correlation & a code for camshaft position sensor. We scope the camshaft position sensor and found a bad signal. Replaced camshaft position sensor and accelerator pedal sensor. About 100 miles late...
April 19, 2007