When starting in the morning or if it sets for ten minutes the engine backfires through the manifold. After it starts it runs perfect no problem at all. If you park it for five minutes the same thing occurs. I have replaced the MAF, cleaned the pcv, fuel filter. Cleaned the throttle body and the IAC. After it starts you get a code P0171 and P0174. You can clear the code and it will not reappear until it starts again. Have any ideas?
have the same problem?
Monday, June 26th, 2017 AT 1:29 PM