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View Full Version : 02 sensors quick question...


stevo89
03-09-2011, 08:12 PM
Ok so i bought a pacesetter header and replaced the whole exhaust and for some reason the 02 sensors were acting up imediatly and it would mis fire out the ass and on a good week id get 17 mpg... i replaced one and it quit missing while driving.. but it still misses at idle.. should i replace the other one too or is it a diff problem.. im still only getting about 23-25 mpg and tune up less than a year ago
elpuma
03-09-2011, 08:34 PM
i just checked mine and the o2 sensor with the white plug goes on the left of the headers and the one with the green plug goes on the right of the headers. does that make sense?
stevo89
03-09-2011, 08:42 PM
Well does it really matter as long as there connected to the correct plug. It runs perfect till it i go to stop and it sputters like no other!
RAZR
03-09-2011, 09:04 PM
Well does it really matter as long as there connected to the correct plug. It runs perfect till it i go to stop and it sputters like no other!

it might be the idle air cantrol valve (IACV)
elpuma
03-09-2011, 09:57 PM
did you reset your ecu after installing the headers?