4. Check MAF Sensor Ground Circuit For Open And Short
WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check harness continuity between MAF sensor terminal 3 and ECM terminal 109.
Refer to Wiring Diagram.
- Continuity should exist.
- Also check harness for short to ground and short to power.
OK or NG
OK : GO TO 5.
NG : Repair open circuit or short to ground or short to power in harness or connectors.