lambda light

[850twr]

went for a 40mile round trip this afternoon, drove the car fairly hard at times but nothing excessive, and 5 miles from home, once i was pottering through the 30 limits the lambda light came on.

Car is still running perfect, boost is still as it was etc. i read on here before that using a mbc/bleed valve can cause this? any thoughts?

[p fandango]

went for a 40mile round trip this afternoon, drove the car fairly hard at times but nothing excessive, and 5 miles from home, once i was pottering through the 30 limits the lambda light came on.

Car is still running perfect, boost is still as it was etc. i read on here before that using a mbc/bleed valve can cause this? any thoughts?
i ocassionally got a long term fuel trim error which could of been due to the MBC because the raised boost & the ECU having to put more fuel in to keep up, but i always thought it was more due to the decat

your best bet is read the codes & see what they say