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Home >> Chevrolet >> 1996 >> Astro Van Cargo, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Trouble Codes >> DTC P0121 - TP Sensor System Performance >> Conditions required to test for DTC are:

Conditions required to test for DTC are:

Engine running and throttle closed.
No MAP sensor DTCs are set.

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