p0031/HO2S

Crisco06 · 05-11-2010, 01:53 PM

I bought an 06 wrx (like the one I totaled) from someone who pro tuned it with cobb accessport. The engine light and cruise light is on, so I read the codes and this came up...

P0031
HO2S
Heater Control Circuit Low (Bank 1 Sensor 1) Is there any way I can fix the cel/cel's without messing up the tune?

P.S. I know the poo31 is the o2 sensor, the exhaust is catless...so I could do the cel fix on that but I don't know if it'll mess up the tune... :/ ?

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Cobb Tuning · 05-12-2010, 06:00 PM

That is for the front o2 sensor. It needs to be replaced. If your tuner tuned the car with a faulty O2 sensor in place it COULD alter the tune, however, I would think this might have come up after the tune.

Travis
COBB Tuning

namehtcire · 05-12-2010, 09:20 PM

That's a completely new symptom, the only light it ever had before was the Secondary Air Injection System crap that I showed you before. Replace the o2 sensor and it should be fine.

05-11-2010, 01:53 PM	#1
Crisco06 Scooby Newbie Member#: 163033 Join Date: Oct 2007 Chapter/Region: MAIC Location: Virginia Vehicle: 2006 Subaru WRX Metallic Gray, OBP	p0031/HO2S I bought an 06 wrx (like the one I totaled) from someone who pro tuned it with cobb accessport. The engine light and cruise light is on, so I read the codes and this came up... P0031 HO2S Heater Control Circuit Low (Bank 1 Sensor 1) Is there any way I can fix the cel/cel's without messing up the tune? P.S. I know the poo31 is the o2 sensor, the exhaust is catless...so I could do the cel fix on that but I don't know if it'll mess up the tune... :/ ? * Registered users of the site do not see these ads.

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05-12-2010, 06:00 PM	#2
Cobb Tuning NASIOC Manufacturer Member#: 4803 Join Date: Mar 2001 Location: Austin, DFW, Portland, SOCAL	That is for the front o2 sensor. It needs to be replaced. If your tuner tuned the car with a faulty O2 sensor in place it COULD alter the tune, however, I would think this might have come up after the tune. Travis COBB Tuning

05-12-2010, 09:20 PM	#3
namehtcire Scooby Newbie Member#: 238969 Join Date: Feb 2010 Chapter/Region: MAIC Location: Chesapeake, VA Vehicle: 2000 ej20g 2.5RS silver	That's a completely new symptom, the only light it ever had before was the Secondary Air Injection System crap that I showed you before. Replace the o2 sensor and it should be fine.