Removed my cat! Oxygen sensor question
#1
Removed my cat! Oxygen sensor question
Alrighty I just removed my cat and welded in the new pipe this morning. Put my non fouler in with the old o2 sensor and all seems good. Here's my question. Since the front o2 sensor isn't in use anymore, would replacing the rear o2 sensor help with fuel economy and idle and what have you or is that as good as it's gonna get? I don't think the back one contributes much of anything if I'm not mistaken. On a side note, if I was pissing off neighbors before with my exhaust I'm causing some real hate and discontent now Next is headers to make my exhaust complete.
Last edited by notanexit7; 08-21-2010 at 02:28 PM.
#2
Why is the front 02 sensor not in use anymore? Did you remove it?
The front o2 is what controls the engine - Fuel levels, keeping the engine running efficiently, etc. Replacing this one, if it's causing an issue, should help with the mpg's, but that depends on the problems being experienced.
The rear o2 is the one that should not be in use anymore. It should be getting fooled into seeing a false oxygen level change that would simulate the cat. All the rear o2 does it monitor catalytic efficiency. Thats it.
Just making sure you have your info right.
The front o2 is what controls the engine - Fuel levels, keeping the engine running efficiently, etc. Replacing this one, if it's causing an issue, should help with the mpg's, but that depends on the problems being experienced.
The rear o2 is the one that should not be in use anymore. It should be getting fooled into seeing a false oxygen level change that would simulate the cat. All the rear o2 does it monitor catalytic efficiency. Thats it.
Just making sure you have your info right.
#3
Why is the front 02 sensor not in use anymore? Did you remove it?
The front o2 is what controls the engine - Fuel levels, keeping the engine running efficiently, etc. Replacing this one, if it's causing an issue, should help with the mpg's, but that depends on the problems being experienced.
The rear o2 is the one that should not be in use anymore. It should be getting fooled into seeing a false oxygen level change that would simulate the cat. All the rear o2 does it monitor catalytic efficiency. Thats it.
Just making sure you have your info right.
The front o2 is what controls the engine - Fuel levels, keeping the engine running efficiently, etc. Replacing this one, if it's causing an issue, should help with the mpg's, but that depends on the problems being experienced.
The rear o2 is the one that should not be in use anymore. It should be getting fooled into seeing a false oxygen level change that would simulate the cat. All the rear o2 does it monitor catalytic efficiency. Thats it.
Just making sure you have your info right.
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#9
if that's the ONLY thing you've done since it was last running right, then i'd replace front O2, and reset pcm.
#10