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Troubleshooting ICP

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Old Dec 2, 2011 | 12:51 PM
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Troubleshooting ICP

Hey guys, I'm troubleshooting my ICP with AE. Can I do that with the engine cold? Or do I have to let it warm up. If I warm up the engine it dies (refer to older post).

The pressure looks to be pretty low when cold at about 750 PSI and the volts were about 1.1. Using the reference from Riffraff it should be at 1310 and volts 1.7. Does this tell me anything?

Older Post: https://www.ford-trucks.com/forums/1...than-dies.html
 
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Old Dec 2, 2011 | 01:28 PM
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Originally Posted by CalCity
Hey guys, I'm troubleshooting my ICP with AE. Can I do that with the engine cold? Or do I have to let it warm up. If I warm up the engine it dies (refer to older post).

The pressure looks to be pretty low when cold at about 750 PSI and the volts were about 1.1. Using the reference from Riffraff it should be at 1310 and volts 1.7. Does this tell me anything?

Older Post: https://www.ford-trucks.com/forums/1...than-dies.html
I would like to know what you see when its warmed up if possible.
 
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Old Dec 2, 2011 | 02:24 PM
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One of the suggestions in your other thread that I did not see that you tried is unplugging the ICP sensor. Try unplugging it and starting the truck. Idle will sound a little funny but it will run normal. See if your symptoms still persist.
 
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Old Dec 3, 2011 | 02:04 AM
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No it did not change the problem. When the truck warms up it dies and will not restart. When I unplug the ICP it doesn't change anything. I would like to have a good piece of mind before spending $185 on that thing. I've already thrown more money at it than I wanted to. I am going to post further findings in the other post.
 
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Old Dec 3, 2011 | 06:33 AM
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750 at cold idle is fine. As it warms up it will drop to around 500. I don't remember from your other thread, but have you changed or rebuilt the IPR?

From what I'm reading, there is nothing wrong with your ICP sensor.
 
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Old Dec 3, 2011 | 11:24 AM
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Yes, the IPR has been changed.
 
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