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ZUKIWORLD Model Specific Suzuki Forum => Suzuki Grand Vitara, Vitara, Chevy Tracker (Gen. 2 Platform) 1999-2005 => Topic started by: mfoster442 on July 25, 2006, 12:56:55 PM

Title: Code P0031-HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
Post by: mfoster442 on July 25, 2006, 12:56:55 PM

Anyone had experience with this code?  It comes on intermitently on my 2002 2.0L vitara.

Thanks all.

Title: Re: Code P0031-HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
Post by: AJMBLAZER on July 25, 2006, 03:31:41 PM

Front O2 sensor.

Title: Re: Code P0031-HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
Post by: mfoster442 on July 25, 2006, 03:46:06 PM

Meaning the sensor itself is bad, or something is causing it to show circuit low?

Those things are friggin' expensive! :o

Title: Re: Code P0031-HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
Post by: AJMBLAZER on July 25, 2006, 08:17:13 PM

Couldn't tell you either way but I was getting that code on my '96 and I replaced that sensor and the code went away.  With as corroded and nasty as they and the exhaust looked I figured it wouldn't hurt to replace them anyways.

Yeah, things are g-d gold. :P

Title: Re: Code P0031-HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
Post by: mfoster442 on July 25, 2006, 08:34:35 PM

Thanks for the input.

I'm going to try and do a tune up first (needs it anyway) and see if that makes it go away.  It's worth a try.

If it keeps popping up, I'll replace the ...Agghhhh!.....sensor.

Holy crap they're proud of those...