Hi,
I'm hoping someone will have a solution to this problem.
My 2006 2.7 V6 diesel S-type has had an intermittent running issue, what happens is once the engine is up to temperature the exhaust will sound louder and then the engine will have a slight misfire when cruising at around 1500 - 2000 rpm. When I come to a stop it will idle and be really lumpy like it is going to stall.
I've had a diagnostic on it when it's been doing it and no codes come up and where it's an intermittent problem I'm thinking it's possibly a problem with the ECU as the climate control is also broken and only blows hot. Also my service required light came on much earlier than it should and the mileage till service kept changing and going up and down, now it just shows the red light and 'service required'
I've had a faulty injector changed, EGR valves cleaned and an air flow sensor changed.
Apart from the ECU I'm out of ideas, has anyone had a similar problem if so what is it that it needs?
Cheers