How do you know when the o2 sensor has gone bad???
02-03-2003, 04:36 AM
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How do you know when the o2 sensor has gone bad???
I have a 99 Civic with a p28 ecu/hondata. One day when driving all the leds strarted to light up on the auto meter a/f gauge and the car started to sputter and misfire.
I'm not getting any CE lights at all. I read some posts in the archieves which makes me believe its the o2 sensor that has gone bad. But why not CE light???
I'm not getting any CE lights at all. I read some posts in the archieves which makes me believe its the o2 sensor that has gone bad. But why not CE light???
02-03-2003, 05:50 AM
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Re: How do you know when the o2 sensor has gone bad??? (VSM EXtasy)
I had my o2 sensor code go off once over the summer. Fiddled with it and it went away. When I went to smog I failed big time. Im running really rich and have killed my catylitic convertor. One explanation is the o2 sensor so Im swapping it out for a new one.
02-03-2003, 06:17 AM
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Re: How do you know when the o2 sensor has gone bad??? (VSM EXtasy)
You won't get a cel usually. The ECU is set-up to correct for the o2 if it doesn't get a reading. Hence the reason it usually runs really rich when the o2 goes out.
02-03-2003, 08:20 AM
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Re: How do you know when the o2 sensor has gone bad??? (tzsir)
You won't get a cel usually. The ECU is set-up to correct for the o2 if it doesn't get a reading. Hence the reason it usually runs really rich when the o2 goes out.
02-03-2003, 08:38 AM
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Re: How do you know when the o2 sensor has gone bad??? (Speed PHreak)
the shop that did my friendsmotor swap(b16 into 92 hatch) cut both his o2 sensors..any idea why he wouldve done something like that???my friends car backfires alot too 
02-03-2003, 08:47 AM
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Re: How do you know when the o2 sensor has gone bad??? (Speed PHreak)
Should have realized it before when my car was idiling horribly. Also when i remved my header and found a huge soot deposit on all my exhaust ports. All shold be fixed soon though.
02-03-2003, 08:58 AM
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Re: How do you know when the o2 sensor has gone bad??? (Speed PHreak)
You won't get a cel usually. The ECU is set-up to correct for the o2 if it doesn't get a reading. Hence the reason it usually runs really rich when the o2 goes out.
The ECU goes into "limp mode" to protect the engine from damage when it sences that the O2 isn't functioning correctly. It runs the engine extra rich. My O2 is shot so bad that my car won't idle. Nice huh?
The ECU goes into "limp mode" to protect the engine from damage when it sences that the O2 isn't functioning correctly. It runs the engine extra rich. My O2 is shot so bad that my car won't idle. Nice huh?
I was worried for a while that it may be something worse.
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adrenajunky
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