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post #1 of 12 Old 03-15-2010, 06:05 PM Thread Starter
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How to check ICP

How can I check my ICP for correct working parameters and what are the parameters? I do have access to a OBDII scan tool, volt meter etc. Thanks, Fred

1995 PSD F-350 Crew Cab Dually....Sold
2000 PSD Crew Cab F-250 4x4
285 Geolanders
EBP sensor and tube clean
Badwin air filter #PA2818
Replaced carrier beariing
Replaced water pump
Repalced ICP and CPS
Straight Pipe
Gauges and A pillar pod
Superchips Flashpaq #1805
Foil Delete Mod
Replaced Glow Plugs ZD11's
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post #2 of 12 Old 03-15-2010, 06:11 PM
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I have always been told if it is oily, it is bad. Other than that i believe it is fine.

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post #3 of 12 Old 03-16-2010, 07:08 AM Thread Starter
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That's what I am hearing also, mine is oily and I cleaned it then drove 40 miles and checked it....oily again, I read another post that said if you unplug it while running and it dies it's bad....if it keeps running the computer is compensating.....just trying to find out if there are readings that I can monitor with a scanner or volt meter to varify it...Thanks, Fred

1995 PSD F-350 Crew Cab Dually....Sold
2000 PSD Crew Cab F-250 4x4
285 Geolanders
EBP sensor and tube clean
Badwin air filter #PA2818
Replaced carrier beariing
Replaced water pump
Repalced ICP and CPS
Straight Pipe
Gauges and A pillar pod
Superchips Flashpaq #1805
Foil Delete Mod
Replaced Glow Plugs ZD11's
Fred Swanson is offline  
post #4 of 12 Old 03-16-2010, 07:14 AM
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With AE, MT2500, NGS, ect... type scanners, you can view the ICP and IPR duty cycle.

If unplug the ICP, the PCM will default to 900psi and stay there. You could even drive the truck with 900psi. Won't run very well.


If the ICP is leaking oil, replace it. In some cases, you'll need to replace the connector to the harness as well.

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post #5 of 12 Old 03-16-2010, 07:16 AM
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mine was dry when it went. I had it acanned and nothing came up on the Snap On. by dumb luck i did the 10k mod and fixed the problem i was having. replaced ICPpulled 10k and all was good.

Dale

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post #6 of 12 Old 03-16-2010, 07:38 AM Thread Starter
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My truck seems very slugish now, bought it in Dec doesn't have the snap that my OBS had that I sold.....thinking the thing may have a bad ICP being it is oily....Fred

1995 PSD F-350 Crew Cab Dually....Sold
2000 PSD Crew Cab F-250 4x4
285 Geolanders
EBP sensor and tube clean
Badwin air filter #PA2818
Replaced carrier beariing
Replaced water pump
Repalced ICP and CPS
Straight Pipe
Gauges and A pillar pod
Superchips Flashpaq #1805
Foil Delete Mod
Replaced Glow Plugs ZD11's
Fred Swanson is offline  
post #7 of 12 Old 03-16-2010, 07:42 AM
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Sounds like a good place to start, but you're in the middle of a guessing game. Get a good scanner, check for codes. Drive around and monitor the live data stream.

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post #8 of 12 Old 03-16-2010, 09:00 AM Thread Starter
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I just un-plugged the ICP while running and it didn't change the engine at all....is this the meaning of a bad ICP?....Fred

1995 PSD F-350 Crew Cab Dually....Sold
2000 PSD Crew Cab F-250 4x4
285 Geolanders
EBP sensor and tube clean
Badwin air filter #PA2818
Replaced carrier beariing
Replaced water pump
Repalced ICP and CPS
Straight Pipe
Gauges and A pillar pod
Superchips Flashpaq #1805
Foil Delete Mod
Replaced Glow Plugs ZD11's
Fred Swanson is offline  
post #9 of 12 Old 03-16-2010, 09:13 AM
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Quote:
Originally Posted by Fred Swanson View Post
I just un-plugged the ICP while running and it didn't change the engine at all....is this the meaning of a bad ICP?....Fred
Nope. just means that the PCM is defaulting its ICP value. Your dash should lit up like a Christmas tree when you did that.


Like I said before, if it's leaking, it's a good place to start. But you are in a guessing game right now until you pull codes and drive it around watching the data stream for possible issues.

You said very sluggish.

Low boost\boost leak\exhaust leak to turbo\bad turbo
ICP issue
fuel pressure issue...
Injector issue...


I can go on.

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post #10 of 12 Old 03-16-2010, 09:31 AM Thread Starter
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Thanks for the info....yes I am told the correct way is to un-plug with engine off then start to see if it changes...I did that and maybe a little less responsive but not much if any diff. I need to make a boost leak detector to check the boots and continue from there, also like I said before the ICP is leaking some oil so I assume I should change it and be done with that possibility.....Fred

1995 PSD F-350 Crew Cab Dually....Sold
2000 PSD Crew Cab F-250 4x4
285 Geolanders
EBP sensor and tube clean
Badwin air filter #PA2818
Replaced carrier beariing
Replaced water pump
Repalced ICP and CPS
Straight Pipe
Gauges and A pillar pod
Superchips Flashpaq #1805
Foil Delete Mod
Replaced Glow Plugs ZD11's
Fred Swanson is offline  
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