pcm swap - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 09-19-2007, 02:42 AM Thread Starter
 
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pcm swap

I just swapped my xle4 computer for a pmt3 and my service engine light comes on after about 5 minutes of driving. If anyone can help me out I'd appreciate it.
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post #2 of 5 (permalink) Old 09-19-2007, 02:53 AM
 
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is xle4 an early99 code? That sounds similar to my original pcm code(mine is e99). I switched mine out for a pmt1 w/o any problems.
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post #3 of 5 (permalink) Old 09-19-2007, 02:57 AM Thread Starter
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yeah its an early 99
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post #4 of 5 (permalink) Old 09-19-2007, 02:07 PM
 
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Shouldn't be setting any SES lights. We change those xle's out to late 99-01 pcms often. Only thing I can think of is a bad pcm. Can you pull the codes?
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post #5 of 5 (permalink) Old 09-19-2007, 06:02 PM
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Quote:
Originally Posted by 7.3 stroker
I just swapped my xle4 computer for a pmt3 and my service engine light comes on after about 5 minutes of driving. If anyone can help me out I'd appreciate it.
Getting a SES light could be from anything. Read the codes with a code reader (make sure it can read diesel codes). If it goes away after driving it, then it is a soft code. It will be stored in the PCM,though. You can stop by any autozone or the like and have them read the codes. IIRC, they do this at no charge. If you take it to the dealership they will charge you their average read code price of $75 to $100. Ask around and if anyone in your area has a code reader you can borrow. An Edge Evolution, SCT Xcal 2 or something like these will also help read the codes for you.

Where in MN are you?

Hope this helps.

Diane
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