V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

O2 Sensor

Old Apr 27, 2012 | 03:49 PM
  #1  
ricklee4570's Avatar
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O2 Sensor

92 Firebird with 127,000 miles. Runs great, no codes. Did a tune up and changed the olugs and wires.

Do I need to change the O2 sensor as a matter of routine maintenance or wait until I get a code from the check engine light?

It looks like it will be tough to get it out as it is rusty around the threads.
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Old Apr 27, 2012 | 06:32 PM
  #2  
UNCLE TOM's Avatar
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From: ms. gulf coast
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: O2 Sensor

in the past i have removed them , cleaned sensor end with carb cleaner & re-installed with no problems . if i were to get an O2 code tomorrow i would try cleaning first . good luck .
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Old Apr 27, 2012 | 06:59 PM
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project89's Avatar
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From: Utah
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: O2 Sensor

the single wire o2 sensor ur car uses is very cheap to replace about 17$'s
over time besides getting dirty the sensors do wear out and the signal it produces to the ecm slows down.

@ 127k miles i would replace the sensor since its so cheap, and the o2 sensor even if not bad but just starting to read sluggishly can cause a loose of power and bad gas milage
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