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6.0 DTC code po263

10K views 4 replies 3 participants last post by  Blown95svt 
#1 ·
I just had a egr delete kit,head studs put in and injector nozzles put on. After driving for a few days about 100 miles my check engine light came on . It ran fine after it came now. Now after setting for a few days it had trouble starting. I think its a injector problem but not sure what do it replace the injector or it is a o-ring problem. thanks for any help
 
#3 ·
P0263 is injector 1 contribution balance fail
 
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