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Home >> Chevrolet >> 2001 >> Camaro Base, 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Control System Self-Diagnostics - 5.7L) >> Diagnostic Tests >> DTC P0102: Mass Airflow Sensor Circuit Low Frequency >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different variant/trim than selected.

An intermittent problem can be caused by misrouted harness, rubbed-through wire insulation or broken wire inside insulation. Check for plugged or collapsed air intake, blocked MAF screen or deposits on throttle body plate or bore. Also, check for vacuum or PCV system leaks, incorrect PCV valve, engine oil dipstick not fully seated or engine oil filler cap loose or missing.

Wide-Open Throttle (WOT) acceleration from a stop should cause MAF sensor display on scan tool to change from 4-7 grams/second at idle to about 190 grams/second at WOT or more at 1-2 upshift. If MAF does not respond as described, check for restrictions.

If problem is intermittent, see INTERMITTENT TROUBLE CODE DETERMINATION  under SELF-DIAGNOSTIC SYSTEM.

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