H7 - Check Resistance of Injector(s) and Harness MFI Engines

- Key "OFF".

- Disconnect Powertrain Control Module (PCM). Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.


NOTE: This erases Continuous Memory.

- Install breakout box, leave PCM disconnected.

- Measure resistance of injector bank 1 between test pin 37 and test pin 58 at the breakout box. Record resistance.

- Measure resistance of injector bank 2 between test pin 37 and test pin 59 at the breakout box. Record resistance.

- Refer to Fuel Injector Resistance Specification/Injector Bank Resistance (Multiport Fuel Injection). Injector Bank Resistance (Multiport Fuel Injection)

- Is each resistance within specification for the appropriate engine?

Yes -- Go to H12. H12 - Check Injector Driver Signal

No -- For no start: Service open in VPWR circuit.

For others: Go to H9. H9 - Check Continuity of Fuel Injector Harness