Ed Barlow
Active Member
Anyone had a PO171 code. Its a too lean/too rich on bank 1 cylinders.
79000 miles
I have the screaming demon coil, new plugs wires at .056, mac intake, c&l MAF and Zabtek bored out throttle body, valve cover breather bypass, epc adjustment, new trans filter, magnaflow cat back exhuast, fuel filter is 4000 miles old.
I read other posts that led me to:
http://www.engine-light-help.com/oxygen-sensor-codes.html
I am going for vacuum / intake leaks. I disconnected/reconnected the EGR tub to get to the first spark plug 2 weeks ago, maybe the vacuum hose on the valve is loose.
Plugs are secure. wires are tight.
Trac runs well otherwise, pulls. Light came on at highway speeds at close to sea-level.
elevation (very light load). I was 2 miles into my trip from the car-wash.
(details?!):unsure:
79000 miles
I have the screaming demon coil, new plugs wires at .056, mac intake, c&l MAF and Zabtek bored out throttle body, valve cover breather bypass, epc adjustment, new trans filter, magnaflow cat back exhuast, fuel filter is 4000 miles old.
I read other posts that led me to:
http://www.engine-light-help.com/oxygen-sensor-codes.html
I am going for vacuum / intake leaks. I disconnected/reconnected the EGR tub to get to the first spark plug 2 weeks ago, maybe the vacuum hose on the valve is loose.
Plugs are secure. wires are tight.
Trac runs well otherwise, pulls. Light came on at highway speeds at close to sea-level.
elevation (very light load). I was 2 miles into my trip from the car-wash.
(details?!):unsure:
