97 DD/Fun Wagon XJ
#61
Like on my Diesel truck you have a FICM fuel injector control module and if that goes bad you will mess up injectors or they won't work properly.
#62
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Year: 1998
Model: Grand Cherokee (ZJ)
Engine: 5.2
Well I know nothing about the injectors is it possible something is not sending signal to those 1-3? I know you did a test and they worked on their own but obviously something is not sensing signal from vehicle. Sorry I know I'm probably pointing out the obvious and what you already know. I'm just trying to help understand so maybe I could come to a idea.
Like on my Diesel truck you have a FICM fuel injector control module and if that goes bad you will mess up injectors or they won't work properly.
Like on my Diesel truck you have a FICM fuel injector control module and if that goes bad you will mess up injectors or they won't work properly.
#63
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Year: 1998
Model: Grand Cherokee (ZJ)
Engine: 5.2
Alright did some more testing...
I should note... my CEL light is on and will not go off... solid.
Checked for pulse and voltage at injectors and that is fine
I then replaced all the injectors and no change in behavior
Then I probed from injectors to white connector @ PCM and all were fine and even shook and jiggled the wires but same thing.
I'm really concerned about the CEL being solid and not going off through any of this.
I should note... my CEL light is on and will not go off... solid.
Checked for pulse and voltage at injectors and that is fine
- Checked with small bulb and saw it pulsing
- Checked voltage with multi-meter and getting 14v at the injectors
I then replaced all the injectors and no change in behavior
Then I probed from injectors to white connector @ PCM and all were fine and even shook and jiggled the wires but same thing.
I'm really concerned about the CEL being solid and not going off through any of this.
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danimal
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
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11-14-2009 05:05 PM
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