I got my MILs installed and a day later my CEL comes on with the code p0136. I know its something to do with my o2 sensor...does it mean my o2 sensor is bad or is it a problem with the MIL eliminators?
There is 50k on them, I will crawl under the car and check it outElectrical tape will both hold it together and keep water out, however it could also be a weak/bad sensor--how many miles on them.
MIL Eliminators work by filtering the rear O² sensor output to reduce its amplitude and phase shift it a bit (more about that here). This makes the PCM believe the cats are still there and working as the cats use oxygen in the conversion process making the rear O² sensor signal lower.
Obviously for the eliminator to do its job requires that the rear sensors be working properly, at issue is that as PZ (Platinum/Zirconia) O² sensors grow old their output voltage drops. Often it drops to a point where the further reduction introduced by the MIL eliminator pulls the signal down to where the PCM will think it has failed. Oddly when this happens you can sometimes remove the eliminator and the PCM will be happy for a while until the sensor dies completely.
You can bench test a narrowband O² sensor with a multimeter and a propane torch.
It an assembly key, there to make sure the proper pig-tail length sensor is installed at the factory that has to be cut off. It's not the main connector key or locking tab.How do they stay in place then if the tabs get cut off?
I got a guy for my inspections :naughty:With the rear sensors turned off, and if you have emissions testing in PA and they use the I/M (Inspection/Maintenance) monitoring PID to check for system readiness, you may fail inspection with them disabled in the tune.
Your tuner will know whether this is an issue or not...