Fuel Injector Circuit

Disconnect injector harness connectors. Using digital ohmmeter, check connector terminal resistance of each injector. See INDIVIDUAL INJECTOR RESISTANCE . On non-sequential PFI engines, disconnect injector bank harness connector. Check resistance of injector bank. See INJECTOR BANK RESISTANCE . Repair wiring or any injector not within specification.

INDIVIDUAL INJECTOR RESISTANCE ⁽¹⁾

Engine

Ohms

All Models

13-16

⁽¹⁾	Resistance values are for a single injector.

INJECTOR BANK RESISTANCE ⁽¹⁾

Engine

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.

NOTE: For additional testing and information, see FUEL SYSTEM in I - SYS/COMP TESTS article in the ENGINE PERFORMANCE Section.