CHECK HARNESS BETWEEN FUEL INJECTOR AND ECM CONNECTOR.

Measure the resistance of harness connector between ECM connector and fuel injector on faulty cylinders.

Connector & terminal

#1 (B134) No. 17 — (E5) No. 1:

#2 (B134) No. 16 — (E16) No. 1:

#3 (B134) No. 27 — (E6) No. 1:

#4 (B134) No. 26 — (E17) No. 1:

QUESTION

Is the resistance less than 1 Ω?

Yes No

Repair the harness and connector.

NOTE:

In this case, repair the following item:

Open circuit of harness between ECM and fuel injector connector

Poor contact of coupling connector