o2

Hi experts, I have 97 FJZ80 with170000 miles, and trying to figure out if my O2 sensors and the CAT are in a good shape. Looking on both O2 sensors while driving and both seems to operate between 0-0.9v but when in parking in idle rpm, the downstream is around 0.1v +-0.05v and when I increase...

So I recently replace my exhaust system from the manifolds back and the job went really well. Like a little too easy. Job was done cranked it up and still had the reoccurring code 28.... so I dug in a bit and started tracing back wiring. I find that the previous owner had spliced the O² wiring...

Hello folks … my 80 is showing a steady check engine light and my (trusted) electrical mechanic has diagnosed a failed O2 sensor part 89465-69115. The original part seems to be unavailable. He found an internet replacement but I wanted to check with this group before purchasing that $250 part...

so last weekend i was plowing snow with the 80 and my exhaust from the CATS was always questionable. leaked and just getting me by. so anyway i got stuck in the snow last weekend and while i was rocking it out the snow got wedged up around the CAT and removed the rusty pipe between CAT and...

Looks like I need to replace the upstream bank 1 o2 sensor. Just double checking with the mudborg if there is anything else that could throw this code? It's been very cold. I'm also thinking possible crud build up on the sensor...