What a difference a new o2 sensor makes!
#1
Three Wheelin'
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What a difference a new o2 sensor makes!
Check engine light came on on Monday.
When accelerating, there was a lot of hesitation in the throttle, particularly in the low rpms. Turns out the o2/laf sensor went bad.
Got the car back last night. I swear it's a whole different animal. Acceleration is very responsive, and smooth.
Thinking back, I don't think it ever drove this good. There was always a slight hesitation. Wonder if there's always been a problem with it, but not enough to throw a code.
And this may sound odd, but even my shifts are better. I can match the revs really well and much smoother. Before, seemed like no matter what I did, the shifts were always a little rougher than they should be. Was actually a pet peeve of mine, but no more.
Only question, seems odd that the o2 sensor went. Car is 18 months old, with 25000 miles on it.
When accelerating, there was a lot of hesitation in the throttle, particularly in the low rpms. Turns out the o2/laf sensor went bad.
Got the car back last night. I swear it's a whole different animal. Acceleration is very responsive, and smooth.
Thinking back, I don't think it ever drove this good. There was always a slight hesitation. Wonder if there's always been a problem with it, but not enough to throw a code.
And this may sound odd, but even my shifts are better. I can match the revs really well and much smoother. Before, seemed like no matter what I did, the shifts were always a little rougher than they should be. Was actually a pet peeve of mine, but no more.
Only question, seems odd that the o2 sensor went. Car is 18 months old, with 25000 miles on it.
#3
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I replaced my air fuel sensor as well they screwed it up when they installed my headers...
The car was running like crap on the dyno during all 3 pulls it had trouble with each climb.
The car was running like crap on the dyno during all 3 pulls it had trouble with each climb.
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Originally Posted by bigwilliestyle
Only question, seems odd that the o2 sensor went. Car is 18 months old, with 25000 miles on it.
#5
Originally Posted by bigwilliestyle
Check engine light came on on Monday.
When accelerating, there was a lot of hesitation in the throttle, particularly in the low rpms. Turns out the o2/laf sensor went bad.
Got the car back last night. I swear it's a whole different animal. Acceleration is very responsive, and smooth.
Thinking back, I don't think it ever drove this good. There was always a slight hesitation. Wonder if there's always been a problem with it, but not enough to throw a code.
And this may sound odd, but even my shifts are better. I can match the revs really well and much smoother. Before, seemed like no matter what I did, the shifts were always a little rougher than they should be. Was actually a pet peeve of mine, but no more.
Only question, seems odd that the o2 sensor went. Car is 18 months old, with 25000 miles on it.
When accelerating, there was a lot of hesitation in the throttle, particularly in the low rpms. Turns out the o2/laf sensor went bad.
Got the car back last night. I swear it's a whole different animal. Acceleration is very responsive, and smooth.
Thinking back, I don't think it ever drove this good. There was always a slight hesitation. Wonder if there's always been a problem with it, but not enough to throw a code.
And this may sound odd, but even my shifts are better. I can match the revs really well and much smoother. Before, seemed like no matter what I did, the shifts were always a little rougher than they should be. Was actually a pet peeve of mine, but no more.
Only question, seems odd that the o2 sensor went. Car is 18 months old, with 25000 miles on it.
sauceman: did your check engine light come on before you replaced them?
Thanks!
#6
Three Wheelin'
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Honestly, have no idea which sensor it was. Actually, they confused me initially as they called it an auto laf or something, and I didn't realize it was just the o2 sensor.
Always used premium gas.
I wonder if it's been a little flaky from the beginning. Definitely haven't been pleased with the car's performance the past few months. But I think it got worse so gradually I didn't really notice. Much better now though.
Always used premium gas.
I wonder if it's been a little flaky from the beginning. Definitely haven't been pleased with the car's performance the past few months. But I think it got worse so gradually I didn't really notice. Much better now though.
#7
a broken o2 sensor means your ECU can no longer properly check its air/fuel ratio..thus it throws the car into what they usually call "limp" mode... the ecu will then think safe and throw in more fuel to run rich to be safe... this is so the engine does not detonate... therefore you get a loss of power.
this is for the o2 sensor in the header..if its the aftercat o2 sensor... that o2 sensor does not usually affect anything except it serves to see if the catalytic converter is working correctly.
this is for the o2 sensor in the header..if its the aftercat o2 sensor... that o2 sensor does not usually affect anything except it serves to see if the catalytic converter is working correctly.
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Originally Posted by myblacktsx
sauceman: did your check engine light come on before you replaced them?
I shut the engine down for 5 minutes, restarted, everything was going fine, then 50km later the CEL came on.
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