more o2 sensor codes ugh
I used to always throw 1131 and 1151 codes until i got my tune from bama because of my longtubes, this past week i put my new trans in from hanlon motorsports and my front suspension (switch to upr)...today i threw 0133 and 0153, o2 slow response, i had the battery disconnected for 4 days while doing this work to it, today i unplugged the o2s and cleaned them off and plugged them back in...tonight i threw 0153, what is going on here, no wires are crimped or exposed sensors are less than a year old. the only different thing i have done is put my catted midpipe back on and to remove the trans i had to remove the passenger side header which i install tight, but the 0153 is the drivers side, any input? should i load my tune again?
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No need to reload the tune because it donesn't just fall off the computer so to speak. Have you tried replacing the o2s at all?
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they are both about 5 months old, for both to throw codes at the same time i highly doubt they are bad and are actually doing their job detecting an actually problem, what causes this to happen?
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I swapped the o2 sensors from left to right. Cleared codes. P0153 came back. Only thing I did was replace transmission and added my catted midpipe instead of my offroad h
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Exhaust leak(s) near the O2 sensor can cause those codes...
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What about exhaust leaks like 2 inches after the sensor at the collector?
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would having a tune for LT headers and o/r mid cause this to happen when putting a catted mid on?
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Originally Posted by cisurfer
(Post 7532362)
What about exhaust leaks like 2 inches after the sensor at the collector?
would having a tune for LT headers and o/r mid cause this to happen when putting a catted mid on? The exhaust flow is not one homogeneous stream, but rather a series of pulses created by each exhaust event. These pulses have a head, body, and tail; each with different characteristic, with their pressure relative to the outside world being the most significant.
This is why the leak makes the PCM believe the mix is lean, a big or close enough leak can cause the sensor response to slow or even appear "stuck". |
ok there was a leak, which i fixed, ill try it again though, but like i said the only thing i did was change mid pipes really
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i pulled the code again tonight, with new o2 sensors and got a p0133, if i have an exhaust leak how does it switch from side to side, one time its 0133 then the next its 0153
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