02 and temp sensor - 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 01-24-2008, 11:25 AM   #11
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I just put my car thru the official BC tune-up. Went thru everything with a fine tooth comb. If my mileage improves, I'll report the results.

FYI, I was running the AC Double Platinum plugs. Now, of course the V Powers. New AC - 02 sensor, cleaned MAF, TB, EGR, PVC. New UIM. Changed all fluids. Tire pressure etc.

Didn't change the Temp sensor.

Also, I have never taken this car an an extended highway trip. Not even once. So have no idea what the true hwy mileage is. Always took my other car.
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Old 01-24-2008, 12:40 PM   #12
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my neighbor does all my work so i told him i wanted to change the o2 and he said i should do both because it will help my mpg i was a lil confused but seeing all he dose is work on cars i assumed he knew more then me, but i only paid 18 bucks for the temp sensor so oh well i guess lol
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