Fuel Injector Circuit

Disconnect injector harness connectors. Using digital ohmmeter, check connector terminal resistance of each injector. Individual injector resistance should be 13-16 ohms on all models. On non-sequential PFI engines, disconnect injector bank harness connector. Check resistance of injector bank. See IINJECTOR BANK RESISTANCE . Repair wiring or any injector not within specification.

INJECTOR BANK RESISTANCE ⁽¹⁾

Engine

Resistance (Ohms)

2.3L

6.0-8.5

3.0L

4.0-5.5

5.0L

0.5-3.0

⁽¹⁾	Resistance values are for non-sequential PFI engines only.