Misfire after header install
Drifting
Joined: Oct 2003
Posts: 1,540
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From: bloomfield nj
Originally Posted by terlox
On my '00 C5 the FRONT O2 sensors cross over eachother and plug into opposite sides (pass side plugs into driver's side, driver's side plugs into pass side). The car runs awesome so I know it is correct - I've heard the kinds or problems people encounter when they get the front O2's mixed up. 
your REARS cross,not the fronts.
Thread Starter
Pro
Joined: Sep 2005
Posts: 538
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From: Geneva, IL Bring back the Chief!
St. Jude Donor '06-'07-'08-'09-'10,'13-'14,'19-'20-'21-'22
Originally Posted by dpd
i don't think plugs and wires are going to fix it.if you still get p0171,plugs/wires are not going to fix it.if EVERYTHING checks out ok[no air/vacuum leaks],etc.did anybody drop any of the o2 sensors?
here is a test,swap the front o2 sensors side to side,if the right bank[bank 2] now shows the lean fault you know you have a bad o2.
here is a test,swap the front o2 sensors side to side,if the right bank[bank 2] now shows the lean fault you know you have a bad o2.
Think I'm actually getting pretty good at plugs now. Buttoned her all up wiith the original plugs and wires. Switched the O2 sensors (not the wires) and wadaya know? She's purring out there in the garage right now.
Bad O2 sensor.
You nailed it Don. Thanks.
And thanks to all the advice from ya'll.
Its a nice day here in Chi-town. THink I'll take 'er out for a spin.
Dick
Drifting
Joined: Oct 2003
Posts: 1,540
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From: bloomfield nj
Originally Posted by bennettrp
GOT IT!
Think I'm actually getting pretty good at plugs now. Buttoned her all up wiith the original plugs and wires. Switched the O2 sensors (not the wires) and wadaya know? She's purring out there in the garage right now.
Bad O2 sensor.
You nailed it Don. Thanks.
And thanks to all the advice from ya'll.
Its a nice day here in Chi-town. THink I'll take 'er out for a spin.
Dick
Think I'm actually getting pretty good at plugs now. Buttoned her all up wiith the original plugs and wires. Switched the O2 sensors (not the wires) and wadaya know? She's purring out there in the garage right now.
Bad O2 sensor.
You nailed it Don. Thanks.
And thanks to all the advice from ya'll.
Its a nice day here in Chi-town. THink I'll take 'er out for a spin.
Dick
