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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 03-03-2006, 12:58 PM   #1
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Default Another o2 sensor question....

Ive been noticing some high fuel consumption on the 92 se bonne......so yesterday i hop in the car cuase the wifey is kinldy asking (demanding) i fuell up her car, its about 1/4 tank and the car starts to stall while im accelarating after a stop. So i ge to the gas station and i fill er up and it starts working fine again.

So im thinking its
a. bad fuel filter
b. bad o2 sensor
c. bad fuel pump
d. dirty fuel tank

any help is preciated...thanx

HEctor
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Old 03-03-2006, 01:05 PM   #2
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Default Re: Another o2 sensor question....

Quote:
Originally Posted by realjwann
Ive been noticing some high fuel consumption on the 92 se bonne......so yesterday i hop in the car cuase the wifey is kinldy asking (demanding) i fuell up her car, its about 1/4 tank and the car starts to stall while im accelarating after a stop. So i ge to the gas station and i fill er up and it starts working fine again.

So im thinking its
a. bad fuel filter
b. bad o2 sensor
c. bad fuel pump
d. dirty fuel tank

any help is preciated...thanx

HEctor
You need to replace the pickup assembly on your fuel pump. Typical of 92'* to do that under 1/4 tank.

Change the fuel filter, but it will have no effect on consumption problems (poor MPG).
If the O2 sensor hasn't been changed in the last 50k miles or you don't know, change it.
Check your fuel pressure at the rail before and after changing the fuel filter.
Dirty fuel tank isn't likely.
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