o2 sensor...Bosch or AC Delco? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 11-11-2003, 01:35 PM   #11
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Quote:
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Quote:
Originally Posted by Allmachtige
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Much cheaper, got to me in 1 day. AC Delco.
do you have to put in a part number to find it??
Nevermind, found it in the catalog, then used that part number for the price..Thanks!!
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Old 11-11-2003, 02:42 PM   #12
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Could someone please post the part # for the AC Delco o2 sensor?
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Old 11-11-2003, 03:11 PM   #13
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Originally Posted by tonyg
Could someone please post the part # for the AC Delco o2 sensor?
Here'* the one I found...

#25162693
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Old 11-11-2003, 03:42 PM   #14
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Oh no! Not this again! Almost every year used a different O2! It'* year-dependent. Check Techinfo at the top of the page, it will give you the proper numbers.
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Old 11-11-2003, 03:47 PM   #15
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Oh no! Not this again! Almost every year used a different O2! It'* year-dependent. Check Techinfo at the top of the page, it will give you the proper numbers.

Okay, scratch what I said...'cause, y'know....
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Old 11-11-2003, 04:48 PM   #16
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Honestly, how much do you guys think an o2 sensor will effect gas mileage? ..at this point i'm experience sub-par gasmileage IMO ..and i replaced the spark plugs and i haven't had a noticeable change yet really in gas mileage.. i'm workin on the plugs ...and now i'm debating on replacing the o2 sensor just to be safe... that'* about it, right?
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Old 11-11-2003, 04:51 PM   #17
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Honestly, how much do you guys think an o2 sensor will effect gas mileage? ..at this point i'm experience sub-par gasmileage IMO ..and i replaced the spark plugs and i haven't had a noticeable change yet really in gas mileage.. i'm workin on the plugs ...and now i'm debating on replacing the o2 sensor just to be safe... that'* about it, right?
Well, in the Saturn I was getting about 38 mpg, and now that the sensor has gone bad, I only get about 29-30 mpg now...I'd say it does...
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Old 11-11-2003, 05:04 PM   #18
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If you have a sudden drop (over a month or less) in mileage, and your O2 sensor is over 50k miles old, the odds are that it'* the sensor.
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Old 11-11-2003, 05:49 PM   #19
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Also keep in mind that N/A o2 sensors are heated (3-4 wires) while L67'* use 1 wire.
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Old 11-11-2003, 05:58 PM   #20
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Quote:
Originally Posted by BonneAlien
Honestly, how much do you guys think an o2 sensor will effect gas mileage? ..at this point i'm experience sub-par gasmileage IMO ..and i replaced the spark plugs and i haven't had a noticeable change yet really in gas mileage.. i'm workin on the plugs ...and now i'm debating on replacing the o2 sensor just to be safe... that'* about it, right?
The o2 figures out how rich or lean the engine is running by sensing how hot the temperature is, if it'* burning richer or leaner it goes a certain ay. It changes it'* electrical resistance based on the temp it'* running at, if it goes bad it doesn't send out the proper voltage/signal out. The car thinks it'* constantly running a certain way and your milage/performance suffers. If your car is over 50,000 miles it'* always a good thing to replace.

Delco is the best for our cars, keep it going with delco.
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