I have a 2002 Ford Explorer Sport Trac 4.0L 4x4 with an apparent engine problem. The symptoms are a check engine light, intermittant rough idleing, and diagnostic fault codes of P1151 & P0174. The big clue however is an intermittant, strange but potent odor from the exhaust. I know the problem occurred all at once as I smelled the strong odor immediately. Since the occurence happened the odor is come and go. From research, I gather the codes are from the oxygen sensor on the 2nd bank prior to the cat converter, and that I should check the EGR, a potential vacuum leak, and the air flow sensor. All seems to be okay, but I'm wondering if these are all symptoms of a more serious issue. I'm somewhat dobtful an odor like this could be caused by a improper gasoline mixture. Can you help? Thanks in advance for the helpful info!
have the same problem?
Saturday, July 10th, 2010 AT 1:01 PM