I have a P0403 on my car, and I can't seem to get rid of it. The car really isn't showing any signs of a problem. Gas millage is normal, emissions is normal, lots of power from engine. I replaced the EGR valve, still nothing. Now the mechanic is saying I may need a computer flash or whole new computer. My question is which is more likely? Also if it does need a new computer can I buy one from the junkyard? Any help would be perfect!
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Tuesday, February 10th, 2015 AT 8:55 PM