Dear VOLVO friends, although I’ve been falling for the 940 for a long time, I’m new here in the forum and hope for your advice. — I bought a very well-kept combination, built in 1996 again with 135 hp in the turbo version with currently 308,000 I had a new Prins gas system installed, which also works without any problems. Unfortunately, I have the following problems. After about two to three hours of highway with an average 130/140, the control light started to light up on the left which indicates a problem with the Lambda probe ? or ? Then a noticeable power drop especially on the mountain – it fell back to 100, on a straight track I was able to speed it up again but at 140 was over and it didn’t accelerate any more – I drive the car with a maximum 130 and 150 in the top – in the gas operation the performance loss is a little more, with gasoline he drives minimally better. I replaced the fuse 1 at the gas station — there was the check again. It is also striking that as soon as he gets a little undertoury – he jerks and has a drop. Has someone an idea of you and can help me for your answers?