7. Check MAF Sensor Input Signal 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.
- Check harness continuity between MAF sensor terminal 1 and ECM terminal 91. Refer to Wiring Diagram.
- Continuity should exist.
- Also check harness for short to ground and short to power.
OK or NG
OK: GO TO 8.
NG: Repair open circuit or short to ground or short to power in harness or connectors.