6G Celicas Forums

Thanks, I think it is direct fit as I checked the local Advance Auto and O'Rielly and the sell the same part for 58 dollars. So it does have a plug two pin.
Thanks again.

That denso through rockauto is a direct fit option. I ordered one already a few months back

Update: Installed the new O2 Sensor last night. drove around the block, no check engine light. Drove to work this morning about 18 miles no check light, so will see on the way back if it does turn the Check Engine light. I will post back to see if the problem is fixed or not. So far no check engine light. It comes on after you drove it for 10 -15 miles and then idle it for one minute.

BTW the Denso was direct fit.

Ok the light is back ON after installing the new O2 sensor. Can someone please tell me how to systematically check the system to see where is the issue. Obviously, it is not the O2 sensor. I will check for leaks one more time. The new header has the flange type with two studs to install O2 sensor. I have replaced the gasket there. There are no leaks between the header and the downpipe.

1. So How do I check to see whether the ECU is sending the signal. I have a test meter.
2. How do I check to see if my O2 sensor is working properly.

I have to factory Manual for this car (1996 ST with 7AFE) but it asks for special Toyota SST which I don't have. YouTube University says to check for voltage at the ECU end and check for resistance at the O2 side. Is this correct. Any help would be appreciated.

Same codes?

Sorry Bitter for the delayed response. I was TDY. I cleared the codes after i installed the new O2 sensor. Since I drove about 230 miles and no lights so far. So it must have been the O2 malfunctioning. I will keep you posted if it does comes back on and I will check for the codes this time.

I have a Kiwi MPG installed in my car and usually use to monitor the coolant temp with it but it also clears the code. It does many other things as well.