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2000 Jeep Laredo Repair Question


Topics covered: Trouble code, Engine, Gas.
Mileage: 180 miles.

Asked on September 25, 2012

Why is my number 7 injector wire not pulsating?

Have changed injectors plugs and coils it is missin really bad and the gas millage is awful
Avatar Asked by beccaentler

Answer

Replied on September 25, 2012

If you have tested and confirmed the injector is not pulsing, you either have a break in the wiring corcuit ot a faulty PCM.

What trouble codes are you getting?

Tiny Answered by KHLow2008 (expert)
39,956 answers provided
Replied on September 25, 2012

I had someone to put the injector test light on it all cylinders pulsated but number 7. When tested number seven light just stayed on didn't pulsate.

Tiny Response from beccaentler
1 question asked
Replied on September 25, 2012

If the light stays on, it means the PCM is bad and keeping the circuit grounded. This should trigger trouble codes. Do you have any trouble codes?

Tiny Answered by KHLow2008 (expert)
39,956 answers provided

Replied on September 25, 2012

It could also mean the wire from injector to PCM is shorted to ground.

Tiny Answered by KHLow2008 (expert)
39,956 answers provided
Replied on September 25, 2012

What is PCM and what can I do about this problem hopefully an easy fix

Tiny Response from beccaentler
1 question asked
Replied on September 25, 2012

Power Control Module, meaing the engine computer. If it is a shorted wire or PCM, it would be an easy fix but the cost between the 2 would be vastly different. You need to check/test the wire for shorting.

Tiny Answered by KHLow2008 (expert)
39,956 answers provided

Replied on September 26, 2012

Ok I will do that Thank You so much for your help

Tiny Response from beccaentler
1 question asked
Replied on September 26, 2012

You're welcome.

Tiny Answered by KHLow2008 (expert)
39,956 answers provided