CHECK HARNESS BETWEEN ECM AND FUEL INJECTOR CONNECTOR.

1) Disconnect the connectors from fuel injectors #1 and #2.

2) Measure the resistance of harness between ECM connector and fuel injector connector.

Connector & terminal

(B135) No. 73 — (E5) No. 1:

(B135) No. 74 — (E5) No. 2:

(B135) No. 49 — (E16) No. 1:

(B135) No. 51 — (E16) No. 2:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Repair the poor contact of the ECM connector or fuel injector connector.

Repair the harness and connector.

NOTE:

In this case, repair the following item:

• Open circuit in harness between ECM connector and fuel injector connector

• Poor contact of coupling connector