Another Fault :/

[Argrdnr]

P0131 - HO2S Sensor Circuit Out of Range Low Voltage

 

After changing the MAF sensor and taking the car for a spin (8 miles) and not going in limp mode after stopping at a supermarket, I use the code reader to check and got the above fault.

I must have done something when changing the maf or searching for the EGR.

Any advice please as to where this is as I did disconnect a couple of connectors.

 

Thankyou

[seatkid]

HO2S Sensor is the Lambda Sensor mounted in the exhaust downpipe ahead of the catalytic converter. Check you didnt damage the wiring or pull the connector when poking around for the EGR.

[Argrdnr]

I didn't even go under the car. Only thing I can think of is the connector just past the MAF.

I didn't even find the EGR. Is it the thing to the right of the engine with a pip on top?

[seatkid]

No idea. Didnt even think the petrol had EGR.

Edited March 23, 2013 by seatkid

[Argrdnr]

I have no idea, I was only going by the fault code and what I've been told here.

[BrianH]

bearing that in mind and the fault code from the other post I would start looking at the black module that connects to the sai system. You might find the pipes have started splitting apart. I replaced mine with normal vacuum hose.

 

Haynes manual does have reference to the egr in the petrol section but it wouldn't be beyond possibility that its wrong in suggesting there is one. No posts on here relating to the petrol egr suggests to me that most likely there isn't one.

 

Photo attached to show the bit i mean.

[Argrdnr]

Thanks again Brian :-)

I changed the maf the other day and the car hasn't slowed down yet, so fingers crossed. If mine does have an EGR I'm gonna remove and clean it anyway.