2001 GMC Sierra 1500 Pickup Support Question
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Question posted by gchav01 on December 4th, 2013
Obm Code Po300
my 2001 GMC seirra truck is showing an OBM code PO300, 5 inc, catlyst, evap, 02 sensor,02 HTR,EGR. It acts like it is starving for fuel when i step on the accelerator. I have already changed the fuel filter and the MAF, what should I check next?
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