me and the mrs were coming down the motorway last week and I felt the accelerator not responding well.
we were doing 70....a min later and a beep and yellow emissions light flashing and anti pollution/catalyst warning came up.
The car was running rough but I got us home by keeping the revs up at juctions has it would not idle anymore.
I have so far changed the coil pack and plugs.
no better
I checked the cranksensor for swarf stuck to it but clean as whistle.
I did a ohm meter reading on it off the car and it comes in at about 4 oms ...was checking for open circuit seing has I think it is a coil type device.
On the software on my laptop that I use to connect to the car it is showing green on misfire detection and I am not getting any misfire codes that would implicate the coil pack or plugs.
I am a bit stumped now as to what else could be causing the rough running.
my next step will be a compression test I think as it is letting raw un burnt fuel into the exhaust and the cat is complaining.
its a 206cc 1600 16v engine 2002 model petrol.
Any More Clues please.
Many thanks
Terry