2001 v40 p0133 mystery

rustyoldman · Post by **rustyoldman** » 10 Jun 2015, 20:47

the devil's own v40 is at my shop after 2 dealers and another independant.the weird thing is,if i unplug the f oxs the p0133 is still there(along with p0030 from being unplugged),but when i unplug the rear oxs the p0133 goes away.i understand,more or less,what that code means,and this doesn't make sense.

pmondrian · Post by **pmondrian** » 13 Aug 2015, 12:58

I replaced both oxygen sensors whem i got the p0133 code and it went away.

I've read that different code readers confuse the front and rear oxygen sensor codes.