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Old 04-18-2014, 12:06 PM
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15lbs ICP

Got my autoenginuty hooked up and showing 15lbs ICP. Takes about 500 to start one I believe. Any ideas on what causes this?

15lbs< Not a typo. Got about %65 duty cycle while cranking.
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Old 04-18-2014, 12:33 PM
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Problem is.. if you only had 15psi of ICP, then IPR would be maxed out at 85%.

So something in the data is incorrect.
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Old 04-18-2014, 12:40 PM
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15psi means your only showing residual pressure from the lpop. You ipr is stuck and dumping all pressure back to the pan. Pull it out take it apart and clean it, reinstall.

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Old 04-18-2014, 03:58 PM
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My IPR has 230,000 on it, would it be best just to replace? Or do they not go bad?
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Old 04-18-2014, 05:27 PM
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Originally Posted by wiley79 View Post
My IPR has 230,000 on it, would it be best just to replace? Or do they not go bad?
They do go bad. You can test it by unplugging it and running jumper wires to at least make sure the coil works, but that doesn't necessarily mean the spool inside is moving correct.

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Old 04-19-2014, 04:52 AM
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Went out this morning while its cold, 40 degree's or so, and I had 26lbs of pressure at 68% duty cycle.

Something just aint right. ICP first then maybe a HPOP?
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Old 04-19-2014, 04:54 AM
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Hpop highly doubt it. Unhook your icp then try to start. Ipr is probably stuck or bad.

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Old 04-19-2014, 06:00 AM
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I unhooked it, then I also replaced the ICP last week along with the cam sensor. No start. Just ordered a new IPR, I gotta be getting close, LOL.
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Old 04-19-2014, 06:16 AM
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Originally Posted by wiley79 View Post
I unhooked it, then I also replaced the ICP last week along with the cam sensor. No start. Just ordered a new IPR, I gotta be getting close, LOL.
Thats why I keep an extra on hand. I put a brand new one in mine on my rebuild and stuck after 200miles. Just needed cleaned. Debris from having everything opened up. Stuck old one back in, fired right up.

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Old 04-19-2014, 08:01 AM
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Thank you sir. Should have a new one here in a few, I'll let ya know.
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