Random check engine light with no codes?????

jupiter · #1 (**permalink**) 12-02-2011, 08:27 AM

I have been getting a random check engine light but when I pull the codes it says 2 but all I get is p0000.
What up with that?
BTW, totally stock truck, 59k on her.

justa03 · #2 (**permalink**) 12-02-2011, 10:02 AM

They dont throw a check engine light without a code. Maybe a trans code or something. What kinda scanner are you using and is the truck running rough or anything?

SixStringMadness · #3 (**permalink**) 12-02-2011, 10:59 AM

some scanners cannot pull all codes. You may need a tuner to get to some of the codes that don't show on what you may be using...

jupiter · #4 (**permalink**) 12-05-2011, 08:07 AM

I am using the Scangage II. Just getting a p0000.
The truck has been starting crappy but runs great when warm.

justa03 · #5 (**permalink**) 12-05-2011, 08:58 AM

Possible FICM issue. If you can check your FICM_M voltage when cranking cold and if your dropping below 47 volts your looking at a new FICM. If you dont have a scan tool that will watch the pid there is writeup on here that tells you how to check it out, also I think swamps diesel site also does. Good luck

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