fpearson
Member
- Joined
- Sep 5, 2008
- Messages
- 12
- Vehicle Year
- '97
- Transmission
- Manual
All,
I recently purchased a 96 2.3L reg cab ranger. The downstream O2 sensor was broken such that the threaded portion is still in place with part of the internals. The 22mm hex are rounded off and I have not been able to remove it to replace the O2 sensor. Lately I have been thinking of making a sleeve with a piece of round bar welded to it and drilling and tapping a hole that will accept the new sensor. This would allow me to leave the old sensor body in the pipe. Is it critical that the bulb protrudes a certain distance into the exhaust stream?
Additionally, does anyone know the hierarchy of the O2 sensors? In closed loop operation, does the computer "listen" to both the upstream and downstream sensor when metering the AFR or does it just compare the signals and throw a Catalytic convertor code when they fall outside of established limits (indicating that the cat is not doing its job)?
Thanks, any info is appreciated (I did a search for O2 sensor posts but didn't find anything, hopefully I'm not duplicating here).
Frank Pearson
I recently purchased a 96 2.3L reg cab ranger. The downstream O2 sensor was broken such that the threaded portion is still in place with part of the internals. The 22mm hex are rounded off and I have not been able to remove it to replace the O2 sensor. Lately I have been thinking of making a sleeve with a piece of round bar welded to it and drilling and tapping a hole that will accept the new sensor. This would allow me to leave the old sensor body in the pipe. Is it critical that the bulb protrudes a certain distance into the exhaust stream?
Additionally, does anyone know the hierarchy of the O2 sensors? In closed loop operation, does the computer "listen" to both the upstream and downstream sensor when metering the AFR or does it just compare the signals and throw a Catalytic convertor code when they fall outside of established limits (indicating that the cat is not doing its job)?
Thanks, any info is appreciated (I did a search for O2 sensor posts but didn't find anything, hopefully I'm not duplicating here).
Frank Pearson