97 psd ICP problem - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 01-08-2013, 05:34 PM Thread Starter
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97 psd ICP problem

I have a 97 f-350 PSD running rough and it is throwing a p1211 code , so I searched to find the cure. I found out the icp could be cleaned and put back together , this I did and purchased new o-rings for the end and re-installed . It still runs the same and still pulls the same code.does any one know how to check the coil or "solenoid" pack ? Or what else might be the problem ?
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post #2 of 9 Old 01-08-2013, 07:27 PM
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Only real check for the coil is to make sure it is not open circuit and that the retaining nut is snug so the coil is not moving around. Just a note: that part is the Injection Pressure Regulator (IPR) valve. The Injection Control Pressure (ICP) sensor is on the drivers side head top edge towards the front leaning inward at a 45* angle. Cheers!

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post #3 of 9 Old 01-08-2013, 07:47 PM Thread Starter
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Thanks for responding ! Yes the 1211code said. ICP press. above/below desired. Faulty inj. Pres. Reg. Valve so I went to that. Could it be as simple as a bad sensor ? Can I check the sensor ?
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post #4 of 9 Old 01-12-2013, 12:32 PM
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Look at the connection of the ICP sensor. If it is covered in oil then most likely the sensor is bad.

1997 F250 7.3 PSD Auto 4x4: All Stock with multiple dents dings and scratches
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post #5 of 9 Old 01-12-2013, 01:54 PM Thread Starter
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Thanks ! Some one else said that, and I checked it but no oil at all. Is that the only way to check for a bad sensor ?
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post #6 of 9 Old 01-14-2013, 09:21 AM
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If it runs better with the ICP sensor unplugged then it is probably bad. When unplugged the truck should use predetermined ICP values and it could run better as a result. If not it looks like you could have a IPR rebuild in your future.

1997 F250 7.3 PSD Auto 4x4: All Stock with multiple dents dings and scratches

Last edited by FurbyPower; 01-18-2013 at 05:18 AM.
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post #7 of 9 Old 01-14-2013, 12:39 PM Thread Starter
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Ok thanks for the info !
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post #8 of 9 Old 01-15-2013, 09:41 AM
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Cap, how are you with in-depth electrical diagnosis? Back-probe (do not puncture the wires) to do all testing. More time involved (but cheaper then shotgunning parts) but this issue is not always due to a faulty part but to the wiring as well.


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post #9 of 9 Old 01-15-2013, 02:07 PM Thread Starter
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That is awesome ! Thanks! That will definitely help. Thanks again
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