P2091 DTC For Chevrolet Express

Chevrolet Express Engine Specifications:
Engine Type :Multi-Cylinder Engine
Cylinder Type :W-Type Engine
Engine Air Intake Process :Naturally Aspirated

Your Chevrolet Express engine control system detects a problem, the computer stores the diagnostic trouble code P2091 in its memory. To figure out what is wrong with your vehicle you must first extract the P2091 DTC For Chevrolet Express.

On 1999 and later P2091 Chevrolet Express engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.

P2091 Chevrolet Express DTC Meaning

P Powertrain Code - Problem is related engine, transmission and emissions systems.
2 MFG - Manufacturer Specific
0 Transmission
9 TP Sensor Learn Not Complete
1 PCM Stack Overrun

There are currently two main types of cylinder deactivation used today, depending on the type of engine. P2091 Chevrolet Express code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed.

P2090 DTC (Previous DTC Code) ( Next DTC Code ) P2092 DTC
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