With out actualy checking any thing yet I'm thinking map sensor issue? Seems fine soon as its on boost around 11-12:1 but cruising the gauge just goes out of limits of lean ie passed 18:1?

Cheers,
Stu.

 

Duff guage or lambda, it wouldn't cruise at 18+ and drive perfectly.
tabetha

 

Sorry Tab, didnt provide enough info there....idles fine (even read nice on the gauge at idle), throttle seems really fluffy just as taking up drive then it evens out again when at a cruise. Feels flat as a witches tit beneith 3k (ignoring the fact its T4'd).

 

I'd check tps, with dead patches they can cause the flatness, they usually wear just above idle as it spends a lot of time in that position when just plodding along.
tabetha

 

Good call....will get on it, cheers!