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Discussion Starter #1
I have a 1998 Chev. GMC 6.5 turbo diesel truck.

I have 2 check engine light problem codes that I need help identifying and help in repairing.

The first is a PO251
and
PO370

Can anyone out there possibly help out with this I can't find any info on this code or can you point me to somewhere where I might be able to find out any info on this.

Thanks
 

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Legennn... wait for it...
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codes are fuel delivery related... could be a bad injection pump, could be an optic sensor problem. Could also be bad fuel... has it been happening long?
 
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