Another O2 sensor question
Thread Starter
Burning Brakes
Joined: May 1999
Posts: 1,189
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From: Lewisville Texas
Cruise-In II Veteran
Another O2 sensor question
I know that '95's come with 3 O2 sensors but the computer only reads 2 of them, 1 on each side. On the passengers side which one is real, the one in the front or the back? :confused:
Burning Brakes
Joined: Oct 2002
Posts: 1,152
Likes: 1
From: Wichita KS
Re: Another O2 sensor question (Thumper)
The front sensor is the primary...I had my rear sensor unhooked w/o issue. I also was running Datamaster at the time so I could monitor the BLM's Etc. so I know the volts were coming from the front sensor. Never even set a code w/o the rear sensor.
Thread Starter
Burning Brakes
Joined: May 1999
Posts: 1,189
Likes: 0
From: Lewisville Texas
Cruise-In II Veteran
Re: Another O2 sensor question (Lone Ranger)
Thanks. That's what I thought but I wanted to confirm it. Hopefully now I can fix that check engine light. :chevy
Instructor
Joined: Feb 2000
Posts: 195
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From: Woodbridge VA
Re: Another O2 sensor question (Thumper)
Remember to check the O2 sensor fuse. After replacing my sensors the light kept coming back on. That's when I looked in the book and realized that there was a fuse for the sensor. Checked the fuse; it was blown; replaced it everythings ok.
ZZZASY
'94 LT4
ZZZASY
'94 LT4
Drifting
Joined: Mar 1999
Posts: 1,931
Likes: 1
From: Norcross GA
Re: Another O2 sensor question (ZZZASY)
As stated the front sensors are what the PCM uses to tune the fuel. The rear sensor is to monitor the CAT performance. It is an OBD2 thing. The 95 is an OBD2 wanna be, so I'm not sure what it does w/ that signal.
I doubt disconnectiong it will solver your "check" light problems.
I doubt disconnectiong it will solver your "check" light problems.
Thread Starter
Burning Brakes
Joined: May 1999
Posts: 1,189
Likes: 0
From: Lewisville Texas
Cruise-In II Veteran
Re: Another O2 sensor question (ZZZASY)
Remember to check the O2 sensor fuse
