No power to one Fuel injector

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May 24, 2009 | 07:55 PM

thanasi85

Thread Starter

Newbie

Joined: May 2009

Posts: 3

Likes: 0

From: Sacramento, California

Year: 1991

Model: Cherokee

Engine: 6 cyl

No power to one Fuel injector

The #5 cylinder fuel injector is not getting any power, I replaced the connector and still no power. Im not sure were to look next?

May 25, 2009 | 02:48 AM

JeepingDan

CF Veteran

Joined: Apr 2009

Posts: 18,786

Likes: 14

From: CT.

Year: 88

Model: Comanche (MJ)

Engine: 4.0 HO

Quote:

Originally Posted by thanasi85

The #5 cylinder fuel injector is not getting any power, I replaced the connector and still no power. Im not sure were to look next?

This is were a fault finder would come in handy. But assuming you don't have one your just gonna have to follow the wires. It could be a broken wire someware.

May 25, 2009 | 07:42 AM

solderjunkie

Seasoned Member

Joined: Apr 2009

Posts: 470

Likes: 4

From: Nashville TN

Model: Cherokee

Look at the back of the cylinder head... the back two head studs will rub through the harness and short the injector-driver circuits from the PCM (among other things).

When you find the spot, fix it and zip-tie the harness up and away from the head studs.