Originally posted by COUGAR99:
Hey I had the same problem.....the bank 1 02 sensor is on it's way out  , the code should tell you if it's sensor 1 or 2, but if your car has 80K or more on it it's a good idea to replace the 02 sensors anyway. Are the plugs original fords?, and the air box shouldn't have anything to do with it as the computer would adjust according to the air flow.
No the plugs are bosch plat +4's which have been in for 80k miles.
John Overhiser Jr.
Arlington, VT
1998 SE Contour V6 5-spd
SVT Exhaust
KKM Intake(removed)
SVT airbox w/K&N
E1 wheels
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