Cat and O2 not ready

[08 E92 Jerez Black]

Hello fellow V8 lovers! I have a cat delete tune and cat delete pipes on my 08 e92 M3 and I put the car back to stock to get it smogged. (stock cats back on and tune put back to stock). I cant get the O2 and cat mon to show ready.Ive put 600 miles on it in stock config and i tried letting it idle from a cold start for 20 minutes the last 2 morning as as well.

Any Ideas

[BPMSport]

Originally Posted by 08 E92 Jerez Black

Hello fellow V8 lovers! I have a cat delete tune and cat delete pipes on my 08 e92 M3 and I put the car back to stock to get it smogged. (stock cats back on and tune put back to stock). I cant get the O2 and cat mon to show ready.Ive put 600 miles on it in stock config and i tried letting it idle from a cold start for 20 minutes the last 2 morning as as well.

Any Ideas

You should contact your tuner for a stock file. Maybe they they did the cat delete in a way that prevents those monitors from going ready.

[08 E92 Jerez Black]

Thx Mike, I thought the same when i was getting ready to put the car back to stock, ESS gave me a completely stock tune to make sure that was not the case..I did that when i put the stock cats back on.