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intermittent shut down issue

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Old Aug 8, 2013 | 07:55 AM
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intermittent shut down issue

I've been having some issues lately with my truck basically shutting off while I'm driving. I'm driving along and it's almost like the ending was turned off and back on instantly. It will do the same sort of "chug" a few times and then be okay. I ran my AE and pulled codes P0344 CPS. P1211 ICP high/lower than expected. I put a new CPS in about 4 months ago. Could that be my problem?
 
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Old Aug 8, 2013 | 08:39 AM
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what brand of CPS did you use?
 
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Old Aug 8, 2013 | 09:28 AM
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Could be fuel bowl heater, UVCH, intermittent short in harness, IPR, CPS, pigtails to IPR or CPS, or bad cable on tuner. I list these because they are all of the things I did at one time and my stalling issue went away.
 
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Old Aug 8, 2013 | 01:04 PM
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Used Grey cps from Ford. Did .50 mod. I'll have to check the other stuff.
It us2d to only do it in the morning. It would chug 7 or 8 times and then be fine. Lately, it will do it anytime and do it like 4 or 5 times one right after another
 
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Old Aug 8, 2013 | 01:52 PM
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Did you inspect the UVCH before sticking the quarters in? When you say it used to chug in the morning and now it dies it sounds like UVCH to me.
 
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Old Aug 8, 2013 | 03:09 PM
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It doest actually die. It's just several split second stalls in a row. Its been 6 weeks or so since I had the vcs off to do the injector sleeves. It's been fine till about a week or so ago
 
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Old Aug 8, 2013 | 03:24 PM
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Try logging data for ICP and IPR when it happens and post up? Morning = cold oil so maybe a sticky IPR getting progressively worse? Grasping here.
 
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Old Aug 8, 2013 | 03:46 PM
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Check you ICP for oil. My buddies truck had intermittent stalling, we unplugged his ICP and it ran fine for days unplugged.
He finally replaced the ICP and it's been fine since.
 
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Old Aug 9, 2013 | 09:11 AM
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I'll try logging the data. I broke the icp a few weeks ago. I ran without it for a couple weeks. This problem actually started while it was disconnected. I was hoping that once I replaced it, my problem would be fixed, but not the case
 
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Old Aug 9, 2013 | 12:13 PM
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Hmmmm, could that indicate a short in the ICP wiring or a damaged pigtail?
 
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