Thread: check engine light problems

It is a universal sensor, a Bosch to be exact. I have crimped the wires and cheked the voltage. 12v, 5v. I dont know what else to do to get the code cleared and fixed for inspection. I dont know if it can be bad carb build up or what else it can be. I look up the live data and Os1b1 shows volts, Os2b2 shows 0, no voltage or activity. how can i find out what it can be? front O2 sensor changed new cat. I might get the old cat on and old fused sensor off but I dont want to continue spending money.

Well if the wire is feeding voltage 2 things. Dead sensor or you wired it incorrectly.

I'm having the same problem, replaced both front and rear 02 sensors in my 97 SE-R but still getting codes of 0707 and 0901, front & rear sensors. Reset the ECU, tried the stock ECU, tried the JWT ECU, keeps throwing codes. I have all but given up and taking it somewhere later to be figured out.

Clogged cat?

Cat is brand new. Need to check the wiring from the ecu to the o2 sensor . 2 bad ecus don't make send

There's signal to the ecu and ground . Even connected the sensor to a external ground still no signals. Kinda lost now everything seems to be there. I've tried jwt ecu and a 99 g20 ecu

I hate 02 sensors.... I just thought I'd share that