Alta turbo-back exhaust + P0420 + P0141 = back to stock exhaust.

Very quick recap - after 14 months and a few thousand miles with my Alta turbo-back exhaust, I start getting the CEL ... originally with the P0420 code, then with a fix from Alta tech support, the P0141 code starts tripping the light and the P0420 code is no longer present.

So I ask Alta tech service if they have a fix for the P0141 code, and I was told that they have plans for an engine 'tune' will be available soon that fixes the problem (my words, not his). Of course that's at an additional charge.

Anyway, so I'm ripping off the complete exhaust system and installing the stock system. What a PITA. I'm not really ranting, more just getting information out about the potential pitfalls of aftermarket turbo-back exhausts on these cars.

Cheers,
Jeff

 

Is the car a R56? If so, wrong forum. Sorry to hear about your problems--good luck.

 

Yep, wrong forum. I'd move it if I could. It should be in the 2007+ Cooper S Powertrain foru. My bad.
Jeff

 

Does the sparkplug non-fouler trick work with these cars?

Its worked on like 10 of my friends cars all different manufactures. I never got to test it on my friends 05 S before he sold it.