Join Date: Aug 2007
Location: Sligo, Ireland.
No lambdas on a diesel. But there is an overboost function in 3rd, 4th and 5th I think, any connection ? Mines been doing the same for over a year now, no codes so nobody knows whats causing it. Like you say its fine in 1st and 2nd, but a definate hesitation in 3rd, 4th and 5th, just below 3000 rpm, which is where overboost should kick in. I also had a new turbo and maf, and it seems to be missing several horsepower over what it used to be.