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I had a Corsa Indy exhaust system plus x-pipe installed on 2002 CPE. Now my engine check light comes on. I am getting codes p1133 and p1153, on both the O2 sensors after the cat. Dealer says I need to put the H-pipe back in. Anybody have this problem? If so, what was the correction?
I had a Corsa Indy exhaust system plus x-pipe installed on 2002 CPE. Now my engine check light comes on. I am getting codes p1133 and p1153, on both the O2 sensors after the cat. Dealer says I need to put the H-pipe back in. Anybody have this problem? If so, what was the correction?
:confused:
[Modified by Pitstop1, 6:25 PM 6/19/2003]
Not sure why that system would cause a problem like that. Probably something else.
Those codes simply indicates that the rear O2's arent seeing enough rich/lean activity from the cat, and assume there is a problem. There is no performance problem with this code since the rear O2's dont do anything but monitor. You would fail a OBD-II emissions test tho with those codes if you have that type of test in your area.
Actually P1133 and PP153 is insufficient switching of the B1S1 and B2S1 I believe. We get these two codes with our headers and the solution is to hook up the physical rear O2 sensros in the front spots on the wiring harness - we sell an adapter just for such purpose. The reason being the rears have a higher wattage and heat up faster than the fronts as they are farther away. Then for the rear O2 sensors spots we install the O2 simulators. It's either that or just turn off the codes. The only adverse effect of having these codes is that it could take longer to go from open loop to closed loop as the PCM is waiting for the sensors to heat up.