fault code P1131
 

i have code P1131 come up it says front o2 sensor short circuit if i put a new one will this resolve the problem cheers my car is a uk300 if this makes a difference

how fast did u go when this error appeared?

its done it three times in four months. this time it stayed on.i was sitting at 85 not raging. it but it did loose power and used a lot of fuel.

Worth checking the wiring between sensor and first connector in case its been damaged. Can get burnt on uppipe if that's been replaced.

If the wiring looks Ok then I'm afraid it's a new front 02 sensor, the bug one is a pseudo wideband jobby and the ECU likes to "see" the OEM unit...... specialists are cheaper than dealers :D

Shaun

just changed the sensor reset the fault.wow what a difference.now it goes like a prodrive car should. cheers for you help.

Glad it's mended :) ..........just out of curiosity where did you get the sensor from ?

Shaun

i got the sensor from allparts. denso i think the make was.£64+vat as im in the trade. normally £110+vat.

Hi!

I will hijack this thread for a question :)

I also got this P1131 (02 sensor circuit(Short) (bank 1 sensor 1)) code, while on the motorway at high speeds. I did a reset and the error didnt came back. I have a decatted (heatwrapped) upipe and a remap. The car is a 01 bugeye wrx. Also the car runs just fine, even with the CEL lighted, runned normally.

Any suggestions?

As for OP.........
Car will run fine except you may experience an increase in fuel consumption.

Check that the wiring is clear of the up pipe and not damaged, if OK replace.

Thanks! I will first check the wiring. I've red that this happend only at high speeds to a few people, like in my case.

I hoped @JDM_Stig knew something about that as he asked for the speed:)