Bad icp? - Ford Powerstroke Diesel Forum
 
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post #1 of 7 Old 07-16-2013, 03:53 PM Thread Starter
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Bad icp?

My 97 has a shake at idle and sometimes at start up it lopes until you hit the throttle any ideas

1997 F250
3" DP"
4" exhaust
5" Tip
TS 6 Position
17" AR Rims
4" lift
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post #2 of 7 Old 07-16-2013, 03:57 PM
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Could be ICP. Or it could be a sticky ipr

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Colin S. Age:22 Certified Diesel Tech, Infantry US ARMY
E99 7.3 6spd 4x4 6637, 4" straight pipe, 365,000 miles
"wear your high mileage as a badge of honor"

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post #3 of 7 Old 07-16-2013, 04:45 PM Thread Starter
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Anyway to test without throwing parts at it?

1997 F250
3" DP"
4" exhaust
5" Tip
TS 6 Position
17" AR Rims
4" lift
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post #4 of 7 Old 07-17-2013, 06:37 AM
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Quote:
Originally Posted by 97Strokin' View Post
Anyway to test without throwing parts at it?
Unplug the ICP. See if that helps.

Also you'll need to read HPOP pressure to diagnose the ipr and see the ipr duty cycle

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Colin S. Age:22 Certified Diesel Tech, Infantry US ARMY
E99 7.3 6spd 4x4 6637, 4" straight pipe, 365,000 miles
"wear your high mileage as a badge of honor"

04 GMC 2500 4x4 Duramax/Allison
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post #5 of 7 Old 07-17-2013, 07:01 AM Thread Starter
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Unplug it and see if it helps?

1997 F250
3" DP"
4" exhaust
5" Tip
TS 6 Position
17" AR Rims
4" lift
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post #6 of 7 Old 07-17-2013, 07:26 AM
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Quote:
Originally Posted by 97Strokin' View Post
Unplug it and see if it helps?
Yes unplug the ICP connector and see if the rough idle goes away.

The computer defaults to a reading of 2200 psi. That will tell you if the ICP is causing it rough idle and such

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Colin S. Age:22 Certified Diesel Tech, Infantry US ARMY
E99 7.3 6spd 4x4 6637, 4" straight pipe, 365,000 miles
"wear your high mileage as a badge of honor"

04 GMC 2500 4x4 Duramax/Allison
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post #7 of 7 Old 07-18-2013, 06:17 AM Thread Starter
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Can you drive it with the icp unplugged?

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1997 F250
3" DP"
4" exhaust
5" Tip
TS 6 Position
17" AR Rims
4" lift
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