CEL still on even with O2 bung
#1
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CEL still on even with O2 bung
Got a TurboXS HFC on my 14 EVO mr. Installed the L bung and I added the spark plug foulers so my rear o2 sensor would have a good distance but still my CEL is still on. Any suggestions? Thank you
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Sometimes you just gotta mess around with the amount of spacers. Like on my car I just have two spark plug non fowlers on there, and that did the job. Some people only need 1. Try taking the L bung off, and just use the non fowlers.
#6
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What code are you getting? I had this issue for around a year and just finally figured it out after putting it off for a long time. If you are getting a P0140 you need to get rid of the spacers and just put the sensor in normally. That's what seems to be working for me.
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#8
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Sounds like the sensor is too far out from the exhaust flow..
here is what I saw for P1037
This, is interpreted by the ECM as a low voltage condition and sets the MIL. Bank 1 Sensor 2 is located to the rear of the catalytic converter and should produce an output signal relative to oxygen storage capacity of the catalytic converter. This rear (sensor 2) sensor is less active than the signal produced by the front sensor. However, if the ECM senses the sensor is inactive, this code will set.
Read more at: http://www.obd-codes.com/p0137
Copyright © OBD-Codes.com
here is what I saw for P1037
This, is interpreted by the ECM as a low voltage condition and sets the MIL. Bank 1 Sensor 2 is located to the rear of the catalytic converter and should produce an output signal relative to oxygen storage capacity of the catalytic converter. This rear (sensor 2) sensor is less active than the signal produced by the front sensor. However, if the ECM senses the sensor is inactive, this code will set.
Read more at: http://www.obd-codes.com/p0137
Copyright © OBD-Codes.com
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It went away again, then came back after 50 miles *sigh* guess I'll have to live with it, can you disable the rear o2 sensor in cobb AP? I was reading on disabling the rear o2 sensor through evoscan and ecuflash but I have no idea how to use those.