CODE HELP
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CODE HELP
Alright, i threw the truck on the scanner today quick. It threw 5 codes. I didnt write them down, but 4 were all glow plug related. Saying Bank #1 and #2 glow plugs were low voltage..and GPR fault low..i just replaced it with a standard GPR. It buzzes when i cycle the plugs. Makes the noise like the old fords when the doors open. Doesnt click like normal relays. Im going to take it off and return it and buy a GPR109 from napa. Other codes was low ICP sensor? Should i put the new GPR and ICP in the truck and scan it again? What are the symptoms of a faulty ICP?
Postmaster
Joined: Sep 2007
Posts: 4,195
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From: Medford Oregon
With the codes you mentioned (GP) I assuming you have a Cali truck? If so you would have a special GPR (California style) with a bar type strap. You would have 5 small wires and two big cables instead of two small wires and two big cables. Which is it?
Here is the diagram on the cali GPR circuit ...
and here is the diagram on the federal GPR circuit ...
Here is the diagram on the cali GPR circuit ...
and here is the diagram on the federal GPR circuit ...
Postmaster
Joined: Sep 2007
Posts: 4,195
Likes: 6
From: Medford Oregon
What scanner did you use?
Cali PCM monitors Bank glow plug voltage.
Federal PCM does not.
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