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Home >> GMC >> 1995 >> Forward Control 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 106 (Engine Controls - Tests W/Codes - 2.2L) >> Trouble Code Charts >> Code 42, Ignition Control >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 1995 GMC Sonoma and 1995 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.

The scan tester cannot help diagnose an intermittent Code 42 problem. See INTERMITTENTS in TESTS W/O CODES - GASOLINE article.

Fig 1: Code 42 Schematic (2.2L) Ignition Control
G94G65579
Fig 2: Code 42 Flow Chart (2.2L) Ignition Control
G95J27523
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