What are the signs?
Thread Starter
Teching In
Joined: Feb 2009
Posts: 37
Likes: 0
From: Stevenson,WA
What are the signs? What are the signs of fading o2 sensors? Mine have about 100k on them...no real sign of any problems just curious. Is there a general rule of thumb on how long the factory Delco ones last?
You could hook up a scanner and see if the o2's are oscillating within the full spec range. But at 100k, if you've got the cash, I'd recommend that you get some new AC Delco o2 sensors.
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So I've done some search on a few different web sites and the link you sent me for those O2 sensors are coming back as "CATCO" o2 on Summits web site and I think they are for a third Gen...any difference between the 3rd gen and 4th? On GM parts direct they are a different o2 then the actual part number Summit gave me for the OEM replacement AC Delco's. I'm not sure these are the correct ones. ThirdGen.org they say they are a 3 prong...aren't ours a 4 prong?
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Verdad Gallardo So I've done some search on a few different web sites and the link you sent me for those O2 sensors are coming back as "CATCO" o2 on Summits web site and I think they are for a third Gen...any difference between the 3rd gen and 4th? On GM parts direct they are a different o2 then the actual part number Summit gave me for the OEM replacement AC Delco's. I'm not sure these are the correct ones. ThirdGen.org they say they are a 3 prong...aren't ours a 4 prong?
'94-'97 fronts...
1994-1995 heated oxygen sensor
1996-1997 front heated oxygen sensor
AC-Delco # AFS75
19178930
(old 25312184)
For you '96-'97 guys...
1996-1997 rear heated oxygen sensor
AC-Delco # AFS97 19178921
(old 25312196)
For you '93 guys...
1993 Oxygen sensor (non-heated)
AC-Delco # AFS21 19211437
(old 25166816)
So I've done some search on a few different web sites and the link you sent me for those O2 sensors are coming back as "CATCO" o2 on Summits web site and I think they are for a third Gen...any difference between the 3rd gen and 4th? On GM parts direct they are a different o2 then the actual part number Summit gave me for the OEM replacement AC Delco's. I'm not sure these are the correct ones. ThirdGen.org they say they are a 3 prong...aren't ours a 4 prong?
i cant throw that on here due to the company not being a sponsor
http://store.summitracing.com/egnsea...=25312184&x=13
On The Tree
Joined: Dec 2007
Posts: 126
Likes: 1
From: Paso Robles, CA
I think my original O2's are acting a bit lazy.When my motor is cold the car runs absolutely fine but when warmed up in stop and go traffic it will slightly miss at idle and sometimes hesitate on part throttle.My in-town gas mileage sucks big time too,about 10 or 11 MPG.Got black soot on my exhaust tips too.
Are these signs of O2's acting up?
Are these signs of O2's acting up?
i just clear it every so often ha 