• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

oxy sensor code

C

cavell

New member
had code 0140 for awhile. changed rear sensor. code went away. for 1 yr. code is back. along with 0102, maf, low voltage. changed maf and than i got code 1404, egr pintle range. what the bleep? so, 0102 is gone which is good but i still have 0140. i think the egr code is gone since i have not seen it in 24hrs but the 0140 remains. so, low or no voltage. does that mean dead or dying rear sensor?
 


Well, I did replace my trans last week. But I had 0140 before I did any work. I was very careful doing work. Did not yank any wires or break any connectors. Quite a smooth job for once. Did a trans in 2nd car last fall. Getting good at this.
 
What brand sensor did you install? I have the same code, and another (P0140, P0141). I'd use oem sensors since most sensors provide critical data for the computer to run the engine properly. A slight bit difference in aftermarket sensors can sometimes cause issues, or they may not last.
 
02NavyBlue said:
What brand sensor did you install? I have the same code, and another (P0140, P0141). I'd use oem sensors since most sensors provide critical data for the computer to run the engine properly. A slight bit difference in aftermarket sensors can sometimes cause issues, or they may not last.
Click to expand...
Doesn't the secondary 02 sensor only verify if the cat is working or not? I was under the impression that the first 02 sensor is the important one.
 
That is right, I was talking about sensors in general. But I believe 01+ does a catalytic test or something that is needed.
 


You must log in or register to reply here.
Back
Top