I threw this CEL when i installed my Headers. I'm sure there's nothing wrong with O2 Sensor.

neweiz here what it said///

P2237
Oxygen Sensor Pumping Current
Circuit / Open (for A/F sensor)
(Bank 1 Sensor 1)

What should I check my A/F Sensor? Maybe it's bad and have to change it?

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lil help pls..

 

you installed a header, which means you eliminated your primary cat. so your secondary o2 sensor is detecting the lack of a cat. so you need to make some sort of anti-fouler to get rid of it.

 

yea but thats not the code for the o2 sensor...its the code for the a/f sensor the one on the header(pre-cat)....so im gon buy a new a/f sensor and see if it gets rid of it..

 

according to TSB EG035-04... P2238 Oxygen Sensor Pumping Current Circuit Low affecting 05 tC .. however an 07 model should NOT be affected.

1. replace bank 1 A/F sensor.

2. perform ECM recalibration


Production Change effective VIN's

MT

JTKDE1#7#50009732

AT

JTKDE1#7#50009804

 

thanks man..