Hi

I mount Testpipe ,Downpipe and AMS O2 Sensor spacer.Now i got thre times CEL P-0139 - Oxygen Sensor Circuit Slow Response.

Because I do not want to every week deleted code I want to know if anybody try this :O2 simulator



http://www.o2simulator.com/

 

It means that your o2 sensor is too far away from the exhaust flow.

 

You should use the AMS spacer, possibly one of the larger holes...

I think it comes with three sizes.

 

Yes AMS spacer have three holes and I m using the large one.

 

Dont use a spacer at all did u try that?

 

any thoughts on P0140 code ? i keep getting that no matter what i do. tried disabling it with a code on ecuflash, didn't work. tried running it like normal didn't work. tried buying a spacer didn't work. nothing seems to work for this damn code. my next step is to hook it up on the other bung that the UR test pipe comes with which i believe is for a wideband, but who knows maybe it will work....

 

Do you have it closer or further away from the downpipe right now? It should be as far away as possible.

 

its got an extra bung extender on it so its is about 4 to 5 inches away from the downpipe

 

And the code was 0140 with the extender?

If so, put a piece of steel wool in the extender. It should limit exhaust flow even further.

 

but the code says "not detected" wouldn't that make it worse? i'm going to try it without the extender and with the steel wool. we'll see i guess.

 

Oh, good call. I thought this was a 0420 even though I specifically typed out 0140.

Are you sure the O2 sensor is intact and plugged in?

 

yup. pretty damn sure haha. hopefully the wool without the extender works, i really want it to work....

 

I received 0140 when my sensor is unplugged. Now that I have my wideband running through the rear O2 circuitry, I get an 0139 (slow circuit response). The "disable" options in ECUFlash did not take away either of these unfortunately.

I'd love a fix, whether it be as mentioned in the OP, or some other ECU method.

 

i'll let you know if some steel wool worked for me.

 

steel wool fixed my problem!