2002 Running rich after long tubes?
#1
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2002 Running rich after long tubes?
Hey guys. I installed a set of Pace setters on my 02 Trans am and now I'm throwing a PO153 code saying the back 2 sensor 1 slow responce. Well I replaced the O2 with one of the leftover sensors from the conversion to LTs. After a couple days the code came back. While I was sitting at the drive through yesterday my eyes started burning and I realized that it was the car running rich. Is this normal? Why am I still throwing this code (that went out but I'm sure will come back)?
Vinny
Oh yeah I have a Diablo sport programmer for the car
Vinny
Oh yeah I have a Diablo sport programmer for the car
#2
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You need a tune, the hell with the programmer. Did you put the pre-cat 02 sensor back in the pre-cat 02 slot? You didn't plug the post cat 02 sensor in the pre cat plug? Right? An did you you use 02 sims or delete the rear 02's?
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if you put a post cat sensor in a pre cat bung thats still connected to the rear position... ITS STILL GONNA THROW A CODE.
leave the front O2s... there shouldnt even be a post cat bung since you did an LT swap? and delete the rears from the Tune. The fronts will still read right in the aspect of tuning, its preferred to use a wideband but they'll do.
leave the front O2s... there shouldnt even be a post cat bung since you did an LT swap? and delete the rears from the Tune. The fronts will still read right in the aspect of tuning, its preferred to use a wideband but they'll do.
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#8
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if you put a post cat sensor in a pre cat bung thats still connected to the rear position... ITS STILL GONNA THROW A CODE.
leave the front O2s... there shouldnt even be a post cat bung since you did an LT swap? and delete the rears from the Tune. The fronts will still read right in the aspect of tuning, its preferred to use a wideband but they'll do.
leave the front O2s... there shouldnt even be a post cat bung since you did an LT swap? and delete the rears from the Tune. The fronts will still read right in the aspect of tuning, its preferred to use a wideband but they'll do.
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you will want to install the vette o2`s up front to stop you from getting codes. right around 03 the z06 vettes had longer tube manifolds and they ran hotter 02`s to copensate for it. and the wiring is longer, so you can kill two birds with one stone! i put these on my 2000 t/a and the codes went away. with long tubes it takes a hotter o2 to get an accurate reading because of the increased volume of the header pipes.
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I think you mean BANK 2 sensor 1 which is the front O2. The O2 is switching slowly the headers will not effect that at all. I have done many long tube instillations in my shop and all we do is lengthen the leads. Long tubes will not richen up the mixture. The O2 pre cat sensors adjust the mixture. Your sensors are slow to respond change them out with new ones and you will be good to go.
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yes in fact it will b/c the o2 being positioned so far down from the stock location they are not staying as hot which will make the slow to respond, this exact same thing happened to me, i fixed it by using new GM sensors get new ones and do not use bosch sensors only for very few people do the boschs work otherwise their crap trust me i learned the hard way.