Major o2 problem...look at this pic and HELP
12-27-2009, 04:15 PM
#1
Staging Lane
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Major o2 problem...look at this pic and HELP 
Having trouble with my car running bad and no one seems to help so I go pull the o2's to clean them like somebody suggested and I think this is the only o2 that's not throwing a code...crazy huh...anyway what does this mean??
Please read my other thread about all my codes and problems and give me some help.
https://ls1tech.com/forums/pcm-diagn...ding-help.html
HELP HELP HELP ^^^^^^^^^^^^^^^
12-27-2009, 07:16 PM
#3
That is clearly mechanical damage. Someone dropped the O2 sensor or there is something that is mechanically bending it inside its cavity. PO 430 is cat efficiency bank 2 Check all voltaces on your O2 leads and check O2 voltages with a Tech 2.
12-27-2009, 10:04 PM
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Staging Lane
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Yeah...I'm thinking melt because there doesn't seem to be any appearance of a blunt impact and you would have to mean to bend something like that...not an accidental drop...but to run lean boggles me because the car always smells like it's running rich... you know...real gassy...but now it just seems to miss terribly or the timing is way off...and blows black smoke fairly heavily
Would someone tell me...as in a definite yes or no if a bad o2 will cause the car to run like that?
Would someone tell me...as in a definite yes or no if a bad o2 will cause the car to run like that?
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12-28-2009, 03:00 PM
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So I show that sensor to my mechanic and he says I've run rich enough to dump gas in the cat and make it superheat to burn the extra fuel...which was kinda what I was thinking...he also said the o2's are probably still good...more likely I have a bad plug or wire...and now that I think about it..If it's been running rich I could have a fouled plug...I'm just hoping I can find it...plugs are such a bitch on these things
12-29-2009, 12:15 AM
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Think about how hot the combustion chambers would be if the exhaust gas temperature were hot enough to melt an oxygen sensor three feet downstream. Id venture to say its completely impossible, because you would burn a hole in whatever piston you were running before you created enough heat to melt an oxygen sensor.
Honestly, that damage looks like the sensor was dropped at some point. Maybe the car was up on a lift, and they dropped the sensor when installing it. A fall from six feet could cause damage like that. I suppose its possible the sensor could still function properly, but Im not expert.
Do you have longtubes? With or without cats? Has the car ever been tuned?
Need to see if the catalytic over-temp protection has been messed with.
Honestly, that damage looks like the sensor was dropped at some point. Maybe the car was up on a lift, and they dropped the sensor when installing it. A fall from six feet could cause damage like that. I suppose its possible the sensor could still function properly, but Im not expert.
Do you have longtubes? With or without cats? Has the car ever been tuned?
Need to see if the catalytic over-temp protection has been messed with.
12-29-2009, 05:54 PM
#13
Think about how hot the combustion chambers would be if the exhaust gas temperature were hot enough to melt an oxygen sensor three feet downstream. Id venture to say its completely impossible, because you would burn a hole in whatever piston you were running before you created enough heat to melt an oxygen sensor.
Honestly, that damage looks like the sensor was dropped at some point. Maybe the car was up on a lift, and they dropped the sensor when installing it. A fall from six feet could cause damage like that. I suppose its possible the sensor could still function properly, but Im not expert.
Do you have longtubes? With or without cats? Has the car ever been tuned?
Need to see if the catalytic over-temp protection has been messed with.
Honestly, that damage looks like the sensor was dropped at some point. Maybe the car was up on a lift, and they dropped the sensor when installing it. A fall from six feet could cause damage like that. I suppose its possible the sensor could still function properly, but Im not expert.
Do you have longtubes? With or without cats? Has the car ever been tuned?
Need to see if the catalytic over-temp protection has been messed with.
Last edited by tom falco; 12-29-2009 at 06:01 PM.
