1996 tacoma 3.4L Auto
So a younger, dumber version of myself decided to chop off my cat and run without O2 sensors. Well I got tired of the CEL on and I figured it would be bad long term to run on a pre-made fuel map, especially at 8k ft elevation.
I went ahead and bought replacement pipe that had the O2 sensors holes/studs and threw in two denso O2 sensors but still no cat($$). I then cleared all emission related codes.
That was 2 months ago and 2-3k miles ago. I still have no CEL, running no cat. I know the 1st upstream O2 sensor adjusts the fuel map and the downstream O2 sensor tells if the cat is working properly. Since there is no cat I should be throwing a code still.
I havent really been driving super long trips lately but the past few days ive been doing a decent amount of miles. The same trip 4 months ago took 1/2-1/4 of the fuel as i'm using now. I'm assuming these problems are related.
If you have any ideas post up! Thanks!
So a younger, dumber version of myself decided to chop off my cat and run without O2 sensors. Well I got tired of the CEL on and I figured it would be bad long term to run on a pre-made fuel map, especially at 8k ft elevation.
I went ahead and bought replacement pipe that had the O2 sensors holes/studs and threw in two denso O2 sensors but still no cat($$). I then cleared all emission related codes.
That was 2 months ago and 2-3k miles ago. I still have no CEL, running no cat. I know the 1st upstream O2 sensor adjusts the fuel map and the downstream O2 sensor tells if the cat is working properly. Since there is no cat I should be throwing a code still.
I havent really been driving super long trips lately but the past few days ive been doing a decent amount of miles. The same trip 4 months ago took 1/2-1/4 of the fuel as i'm using now. I'm assuming these problems are related.
If you have any ideas post up! Thanks!