Engine management light and codes for the cats (29F4 and 29F5)

[STC_Zed]

I was driving along sedately this afternoon in my E86 even the engine management light came on. The car still drive fine with no loss of power etc.

I read the codes and got these two;



The information online seems to vary massively from not really doing anything other than giving the car a thrash to post cat O2 sensors to new cats and some random thing like a dodgy MAF to injectors via coils and plugs.

I was just wondering if anyone on here had had these two codes and what their solution was.

 

[j3nks79]

Can you see live data from the lambda sensors on that thing?

 

[STC_Zed]

I don’t think so, but I’ll have a play around.

I have Carly as well but the app deserves to be working very well for me at the mo.