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Discussion Starter #1
Drove it this morning and then shut it down and won't start up with p2291 code how can I test the icp or is it the hpop need advice on what to look for or do
 

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Hood Rich
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2,873 Posts
looks like your pulling valve covers and pressurizing the HPO system
 

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Discussion Starter #3
Ok how do I do that any info would be great thanks
 

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Fixing Broken Stuff
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2,078 Posts
You can pressurize the system from the ICP sensor on the right valve cover, but first you have to close the IPR valve. you can do it by appling 12v to the coil, you will need too make a harness too do that. I think the ICP sensor thread is 12x1.50. The most common ICP problem with 05's and up is the SCT fitting. Ford makes a update kit for this, 4C3Z-9B246-AA
 
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