5. Check MAF Sensor Input Signal Circuit For Open And Short
WARNING: This page is about a different car, the 2004 Infiniti M45. 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 6.
- NG: Repair open circuit or short to ground or short to power in harness or connectors.