Emissions and CEL
Thread Starter
Racer
Joined: Dec 2005
Posts: 389
Likes: 0
From: Lebanon CT
Emissions and CEL
Hey guys I got a couple of codes from my DIC. P0149 & P0160 (HO2S Circuit insufficient activity). Also P1133 & P1153 (HO2S Insufficient switching). If I did my research right then the first two are the rear O2's and the second set are the front O2's. The front O2's are brand new rear O2's to try and combat the fact that I have LT's. I told my tuner to turn the rear O2's off but I guess he didnt. I have to go to emissions this month and want any suggestions on how to defeat the inproper switching CEL from the front O2's. Turning off the rears is an easy fix so I dont care so much about that. Any thoughts to help me out?
Thanks, Patrick
Thanks, Patrick
Thread Starter
Racer
Joined: Dec 2005
Posts: 389
Likes: 0
From: Lebanon CT
Ok I did some hard nosed research over on LS1tech and I found an old post where guys were widening the slits or holes (which ever was on the O2) on there O2's to help them warm up faster. Not sure if that will work cause a few guys were disputing that method, but nobody ever came back and verified that it worked. Now they also said if the tune is good then you can just turn off the codes 1153 and 1133. Can I do that with my friends LS1 edit? If so it looks like it will be an easy patch fix to at least get me through emmisions next week. Then I can get in there and triy a few things to solve it for good. Common guys please give me some feed back I know this has to be a common problem with LT's.
Thanks, Patrick
Thanks, Patrick
