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IPR issue

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Old May 4, 2018 | 03:46 PM
  #16  
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Would buying a non OEM IPR cause it to run rough.
 
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Old May 4, 2018 | 09:06 PM
  #17  
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Those values don't seem correct at all to me. The IPR at 45 mph guessing 2000 rpm in the 35-45% IPR and guessing 1800-2200 ICP values.

My truck I don't watch my ICP value often but with 38" tires my RPM @ 70 MPH is 1600 RPM's and engine lumbers along slower then most for sure. Plus I'm tuned so highest I see in PSI is 2150 ICP. But you should be much higher than posted.

A aftermarket IPR or ICP is a crapshoot and can be all over the map for darn sure. I didn't look at if you posted idle values in thread. But what you see at 45MPH is normal for a idle.
 
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Old May 4, 2018 | 09:17 PM
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Just a rough guess by trying to remember is at idle the IPR is around 15-17 and the ICP is around 600
 
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Old May 5, 2018 | 12:26 PM
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Originally Posted by tcjhkbjt
at idle the IPR is around 15-17 and the ICP is around 600
Originally Posted by tcjhkbjt
I’m doing 45 my IPR is reading 20 2 my ICP is reading 830
Not right at all. Book is 22% at idle, and roughly 30-36% at 45mph (approximately 30% at 35mph, 36% at 55mph). You need to pull the valve and inspect, it's trying to stay all the way open but is holding back enough pressure. It's sticking somehow is my guess, or there's a restriction on the screen or in the body that's not letting enough oil volume shunt out.
Originally Posted by tcjhkbjt
Would buying a non OEM IPR cause it to run rough.
It could, the numbers are pointing towards a valve problem IMO.
 
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Old May 6, 2018 | 11:33 AM
  #20  
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OK so I’m cruising and 50 mph and my IPR is at 22.6 and ICP 978. Since my truck sat for about three months is it possible that the injectors are dirty or sticky Or is it still an issue because of the valve not be in OEM
 
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Old May 6, 2018 | 12:36 PM
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For either question the first step is still to remove and inspect the valve, so it doesn't really matter any which way does it?
 
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Old May 8, 2018 | 04:23 PM
  #22  
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is there a way to check tour injectors without all the fancy computer equipment. I think I may have an injector out causing my rough running.
 
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Old May 8, 2018 | 06:38 PM
  #23  
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If it's running that rough from a bad stick I would think you would have seen an injector code by now.

To answer your ?, you really have to have some good software to look at things compensated and uncompensated as far as all 8 are concerned.
 
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Old May 8, 2018 | 07:53 PM
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I don’t have a check engine light on but will scan the truck to see if there are any codes.
 
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Old May 8, 2018 | 08:13 PM
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Originally Posted by tcjhkbjt
I don’t have a check engine light on but will scan the truck to see if there are any codes.
What are you using to scan?
 
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Old May 11, 2018 | 12:40 PM
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My SCT tuner has a scanner on it. It pulled codes that did not set off a CEL the last time.
 
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Old May 11, 2018 | 12:46 PM
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The SCT tuner is not a very good/thorough code reader.

If it were me, I would bite the bullet and buy a specific IPR socket and install an OEM IPR.
 
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Old May 11, 2018 | 10:38 PM
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Yea that’s what I plan on doing. That way that is one thing I know won’t be the problem. Thanks.
 
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