Diagnostic Aids
- Monitoring Fuel Injector circuit status with scan tool, while moving fuel injector harness, may help isolate an intermittent condition.
- Performing Fuel Injector Coil test may help isolate an intermittent condition. See FUEL INJECTOR COIL TEST (2.2L SONOMA & S10 PICKUP) .
- For an intermittent condition, go to INTERMITTENTS in TROUBLE SHOOTING - NO CODES - TRUCKS article.