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7.3 running rough

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Old Feb 26, 2015 | 08:37 AM
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rv7plt
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7.3 running rough

6My 02 7.3 has started running rough (jerky) at all speeds when using the accelerator pedal but is fine on cruise control. Would this likely be the throttle position sensor on the pedal or could it be something else.

John in Fl
 

Last edited by rv7plt; Feb 27, 2015 at 04:29 PM. Reason: word missing
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Old Feb 26, 2015 | 07:57 PM
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Originally Posted by rv7plt
My 02 7.3 has started running rough at all speeds when using the accelerator pedal but is fine on cruise control. Would this likely be the throttle position sensor on the pedal or could it be something else.

John in Fl
It could be either the TPS or IVS from the Pedal. Or, could as well be corroded connections or wiring problems.

Although, to be sure, you would need a Bi-Directional Scanner to monitor PID's while the event is occurring.

Otherwise, your just throwing a Dart in a crowded room hoping to hit the guy who can't kick your Butt.
 
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Old Feb 27, 2015 | 01:57 PM
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Unplugg ypur icp. Its a cheap start. If it clears up, go buy a icp...standing in front of your truck looking at the engine, the icp will be on the right head to the front of it.
 
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Old Feb 27, 2015 | 04:21 PM
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What is the ICP?
 
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Old Feb 27, 2015 | 04:29 PM
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Originally Posted by rv7plt
What is the ICP?
Injector Control Pressure sensor.

Not to be confused with these clowns:


 
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Old Feb 27, 2015 | 05:10 PM
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Like I said in my original post, the engine is smooth if the cruise control is engaged. If the ICP was bad, I think it would act up no matter how the speed is maintained.
 
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