Unplugged ICP
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
unpluging the icp and putting the truck in to default is a correct test for a idle concern. if the concern went away it would be a sensor/connector issue.
Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
yup thats is one way to test a bias icp. you can drive it like that as well if needed but not really advised. so If you get stuck on the road its one thing to try.
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Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
Thanks for the info. It must just default to an open-loop ICP control instead of using the sensor for closed-loop control.
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Post Fiend
Joined: Oct 2009
Posts: 12,123
Likes: 35
From: N. Fort Worth, tx
off the top of my head it defaults to 2800 psi. Ill check when i have a chance. I have a 6.4 to do a fuel system rebuild on for the next 2 or so days. so it will be a little while. also that will kick a cel for circuit hi/low but it will run and drive with out it. like I said it just goes default
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