6.0 rough start/dies when warm

[BWCbuilt]

6.0 in a 4200 series truck.... FICM showing 58v with key on, cranking, and running. Whats my next step?

 

[HOOV3R]

Can you monitor ICP psi? Codes?

 

[BWCbuilt]

I only have ODBII cabapilities unfortunately

 

[HOOV3R]

Sounds like it could be a high pressure oil issue, but it's not easy to diagnose without pulling codes / monitoring data.

On edit, ICP can be monitored with most OBDII devices.

 

[CCRICE]

I thought you could monitor icp through obd2.. I'm pretty sure my cts does it. What are you monitoring with?


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[BWCbuilt]

Its a 4200 series straight truck.... no OBDII

 

[CCRICE]

My bad I didn't read that part.


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[golfer]

check ICP sensor VOLTAGE with a voltmeter to confirm the ICP problem...(sounds like one, btw)..

roughly... 1.0v= 750psi.

3 wire sensor...


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back probe the red pin (other lead to ground)

 

[BWCbuilt]

I will give that a shot in the morning, thank you!