Originally Posted by tommyboy8072002
Ok 1406 is a Egr valve pintle position circuit. Will this cause pinging? I Also found a bad Ground wire. but I don't know if that would cause this truck to run like junk.
You really need to adress the P0102 and P0113 first, unless you generated the codes by having the MAF unplugged.
It will not run well with a defective MAF or a MAF that has no power to it.