Vehicle starts and idles great. Good acceleration up to 1800-2200 rpm, then vehicle severely misfires and back fires. A little more when hot but not much worse. No codes. ECM does not show any misfires. Could not see any values out of range with Snap-on scanner. Fuel pressure with in spec. Back pressure with in spec.
have the same problem?
Monday, January 23rd, 2017 AT 4:58 PM