Component Testing
WARNING: This page is about a different car, the 2017 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The engine coolant temperature (ECT) sensor must be between 10 - 32°C (50 - 90°F) for an accurate measurement.
- Ignition OFF, disconnect the harness connector at the appropriate Q17 Fuel Injector.
- Test for 11 - 14 Ω between the terminals of the Q17 Fuel Injector.
- If not between 11 - 14 Ω
Replace the Q17 Fuel Injector.
- If between 11 - 14 Ω
- If not between 11 - 14 Ω
- Test for infinite resistance between each terminal and the injector housing/case.
- If not infinite resistance
Replace the Q17 Fuel Injector.
- If infinite resistance
- If not infinite resistance
- All OK.