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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Engine Controls - Self-Diagnostics - 3.0L) >> Diagnostic Tests >> DTC P0201: Injector No. 1 Control Circuit >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

To locate an intermittent problem, start engine and use scan tool to monitor MISFIRE CURRENT CYL. 1. If a No. 1 fuel injector fault exists, a misfire will occur on cylinder No. 1 and the misfire counter will count up.

Fuel injector resistance: 15.1-15.9 ohms at 70°F (21°C); or all fuel injector resistances within 1 ohm of each other at the same temperature.

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