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Home >> Chevrolet >> 2001 >> Chevy Express G2500, Van Cargo Extended, 5.0 M >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 5.0L & 5.7L >> Diagnostic Tests >> DTC P0121: TP Sensor Performance >> Code Enable Criteria

Code Enable Criteria

DTC sets when throttle position is more than calculated throttle position for more than 5 seconds.

Or

DTC sets when throttle position is less than calculated throttle position for more than 5 seconds.