Had stage 2 Revo flashed on my edition 30 golf today at Inters by TSR performance which took the CEL off caused by the decat exhaust. Drove 100 miles home with a grin on my face now got back in the car and CEL is back on :( is it due to exhaust or another problem I daren't drive it above the pace of a snail incase it's something more serious.
Any ideas?