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  #1  
Old 09-21-2006, 03:59 PM
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lopey idle

i have a 96 powerstroke when on start up it fires up and then has a lopey idle cold or warm you rev it up for about 5 second and then it is great till you shut it off i have clean the ipr did not change anything any help would a big help thanks
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Old 09-21-2006, 04:28 PM
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any codes at all?? and do you have any way to monitor any sensor readings (scan tool)??
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Old 09-21-2006, 04:38 PM
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the only code it had was 1705 i have snap on scan tool
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Old 09-21-2006, 04:52 PM
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monitor ICP pressure, IPR duty cycle, and do an injector buzz test if its capable
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Old 09-21-2006, 05:00 PM
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Quote:
Originally Posted by Marc View Post
monitor ICP pressure, IPR duty cycle, and do an injector buzz test if its capable
i did the injector buzz test and it came back good what should the pressure and the duty cycle be
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Old 09-21-2006, 05:04 PM
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ICP pressure should be approx 600 psi at idle....700-2800 driving down the road depending on throttle position....minimum 1 volt signal at idle.....with up to three volts if i remember right at wide open....

I would expect IPR duty cycle to be about 7% at idle and up to 75% going down the road...again depending on throttle
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Old 09-21-2006, 05:30 PM
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Quote:
Originally Posted by Marc View Post
ICP pressure should be approx 600 psi at idle....700-2800 driving down the road depending on throttle position....minimum 1 volt signal at idle.....with up to three volts if i remember right at wide open....

I would expect IPR duty cycle to be about 7% at idle and up to 75% going down the road...again depending on throttle
when it is acting crazy the psi at idle will go as high as 2000 and the volt will go as high as 2.96 duty cycle will stay around 13 when it idles right about .96v and about 598psi but duty cycle stay about 13
when you get on the pedal it will go up from there
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Old 09-21-2006, 05:47 PM
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duty cycle never fluctuates??
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Old 09-21-2006, 05:59 PM
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Quote:
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duty cycle never fluctuates??
so got any ideas on what is wrong with this crazy thing
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Old 09-21-2006, 06:04 PM
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try rapping on the IPR with something, as hard as you can without denting it. If that doesnt work, try disconnecting the ICP and running it....
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