Engine Performance problem
1996 Ford Contour 4 cyl Front Wheel Drive Manual 150000 miles
I've got a 96 contour that will hesitate when you press the accelerator until it gets warmed up, then runs fine.
The check engine light was on and the codes are:
P0420: Catalyst efficiency below threshold (bank 1)
P0171: System too lean (bank 1)
I've cleaned the MAF, throttle body, and checked the vacuum lines, but problem still persists. The car has recently had plugs and wires changed also. Is there a common problem where these two codes come up? I don't want to spend a whole lot of money throwing parts at this problem, and I'm thinking it's the catalytic converter, but I don't want to spend that much money unless I know that this is the most likely culprit so any help is much appreciated. Thanks.
have the same problem?
Thursday, December 4th, 2008 AT 12:23 PM