New CPS
Check engine light no power
Thread Starter
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Senior User
Joined: Jul 2005
Posts: 463
Likes: 2
From: Woodburn, OR
Check engine light no power
Check engine light came on and engine was running rough.
The CEL went off and the engine ran great. Next day CEL on startup the problem comes and goes.
The EGT was about 800 F when I was driving about 20 MPH. No boost pressure.
Question is where do you connect the scan tool to check the codes on 95 PSD?
I am thing it is CPS.
The CEL went off and the engine ran great. Next day CEL on startup the problem comes and goes.
The EGT was about 800 F when I was driving about 20 MPH. No boost pressure.
Question is where do you connect the scan tool to check the codes on 95 PSD?
I am thing it is CPS.
Posting Guru
Joined: Nov 2003
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From: THUNDER BAY
Sounds like maybe a burnt injector wire harness maybe unplug the injector harnesses on the valve cover gaskets and take a look to see if any of them are burnt you will smell it if it is bad another indicator is oil inside the plug end when you unplug it .
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Senior User
Joined: Jul 2005
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From: Woodburn, OR
I whent to Auto Zone and they said I have OBD1 port on my 95 PSD.
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Senior User
Joined: Jul 2005
Posts: 463
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From: Woodburn, OR
I checked the harnesses and 2 of them have oil in them. I will pull the valve covers off and check. Thanks
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
I agree. sounds like wiring issues.
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Joined: Dec 2007
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From: frostburg md
I know my truck is a little newer but that sounds like the same thing my truck was doing it was the plug under the valve cover pan was comeing unpluged i slid it back on and its been running fine
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More Turbo
Joined: Feb 2004
Posts: 572
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From: Spring Hill, TN
Did you find the cause ? My truck started doing the same thing today .Just idling picking up hay bales,daugther driving. Engine died,she restarted it.It ran very rough and CEL came on.All gauges fine . It cleared up,then did it again. Feels like it's starving for fuel,no power. I'll check my wires.CPS is about 2 weeks old.
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Senior User
Joined: Jul 2005
Posts: 463
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From: Woodburn, OR
tjbeggs hint about the oil was spot on. Pull the plugs to the valve covers and see if there is any oil in them.
All....
Thanks for your help. I owe you all a round of drink. If you get out to Oregon I am buying.
All....
Thanks for your help. I owe you all a round of drink. If you get out to Oregon I am buying.
Post Fiend
Joined: Apr 2004
Posts: 12,835
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From: Silver Lake Dunes, MI
Thanks but that was WALJON! Nice job gentlemen. Will, good luck with the repair. You know where to come if you have trouble
Lead Driver
Joined: May 2007
Posts: 8,608
Likes: 13
From: Belair md
glad to see its diag'd
dads79, unless its REALLY bad you have to pull the covers to check for the burnt wires
ford 1183, i have seen that same issue countless times on sd's. dont know why it happens. they always snap back into place and never come back.
dads79, unless its REALLY bad you have to pull the covers to check for the burnt wires
ford 1183, i have seen that same issue countless times on sd's. dont know why it happens. they always snap back into place and never come back.
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Senior User
Joined: Jul 2005
Posts: 463
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From: Woodburn, OR
Thanks to all that replied to the help me out.
I have the new gasket and valve cover harness installed and tested. Ran out of daylight to get all the bolts into the valve cover.