Idle jumping high...
Thread Starter
|
Laughing Gas
Joined: Mar 2019
Posts: 947
Likes: 144
From: Columbus Ohio
Idle jumping high...
2003 6.0 Excursion 2wd.
Ok, so the only thing I know that can make the idle jump is the ICP sensor. With my tune it normally idles at 625. Every so often it "jumps" to 900 to 1000 while idling in the driveway or driving it with my foot off the throttle. I replaced my ICP in October with a generic one from Advance Auto., then started again about 2 months ago and bought a replacement actual Ford part Sinister Diesel. Now its acting up again! Can anything else cause this? The harness is in good shape(well it was last time I checked), it has started doing it again randomly and will eventually get worse as usual! What else can it be besides the ICP? I dont have any codes yet either.
Ok, so the only thing I know that can make the idle jump is the ICP sensor. With my tune it normally idles at 625. Every so often it "jumps" to 900 to 1000 while idling in the driveway or driving it with my foot off the throttle. I replaced my ICP in October with a generic one from Advance Auto., then started again about 2 months ago and bought a replacement actual Ford part Sinister Diesel. Now its acting up again! Can anything else cause this? The harness is in good shape(well it was last time I checked), it has started doing it again randomly and will eventually get worse as usual! What else can it be besides the ICP? I dont have any codes yet either.
Thread Starter
|
Laughing Gas
Joined: Mar 2019
Posts: 947
Likes: 144
From: Columbus Ohio
what should the voltage be? Are either of the wires measurable to ground, as in should one be a ground and one power?
Thread Starter
|
Laughing Gas
Joined: Mar 2019
Posts: 947
Likes: 144
From: Columbus Ohio
10-4...good to know, which I assume you mean that will short the wires together?
I know I saw you can do it from the top if I remove the degas and FICM? Is it a clear path then? I've done it twice from the bottom, and hate crawling under it.. doing It fin the bottom i always have to unplug the IPR to get to the ICP, cant i get to it from the top easier? Would have to be easier to inspect the wire too I assume?
Fleet Mechanic
Joined: Feb 2007
Posts: 1,652
Likes: 79
From: Mooresville, NC
625 is the spec. Any number of areas could cause spikes...........you can pull the ICP harness when it surges (it will set a CEL) to help isolate. Be careful as yours is in the rear near plenty of hot spots (tricky on the 03-4, mucho easier on later).................if it "settles down" with the harness pulled, you've found the problem...............
Thread
Thread Starter
Forum
Replies
Last Post
Zuiko
1987 - 1996 F150 & Larger F-Series Trucks
11
Sep 19, 2002 04:20 PM
