This is what ive found. With a scanner it says the o2 sensor is at .4v this is with the engine not even running. I pulled the o2 sensor and disconnect it, still at .4v. Hooked up my multimeter to the signal wire from the ecu and its showing .4v . Turned off the ignition, the reading drops to 0. I ha...

I got my c70 2.4 inspected yesterday and it failed emissions but is throwing no code. The reason is that it says obd comm fail reason: cat conv & O2 unsupported programming error. The mechanic asked if i had a tuning kit in it which i do not. Its all stock. The converter is new from 4 yrs ago an...