Chris, The oxygen sensor is a good part to replace for fuel economy if you think it's running a to rich. But with some of the other problems your having with starting and running I would hold off on the o2 till those problems are worked out. The problems your having now could contaminate the new sensor so it won't work properly after you get the starting and running problems worked out. Sound like your car has a fireing problem. Have you checked for water in the plug holes or bad wires. I had the same problems with spluttering and small back fires with spark problems on cars that I leave parked outside. I have to blow the water out of the spark plug holes every now and then. John Hervey --- In dmcnews@xxxxxxxxxxx, Chris Spratt <chris@xxxx> wrote: > Hi list > > I am in need of your expert advice. My car is running way to rich. I have had problems starting it too, but have replaced the all the HT stuff as i have lots of corrosion on my car. The other day my cat was glowing red as too much unburnt fuel was getting into it. But the car now runs but if i rev it or try to move the car it just pops and spluters. Also when the car has been running for a while the air flap starts juddering and there appears to be more exaust fumes. > I am about to replace the Oxygen sensor too > > Any other ideas? DMC Joe? Help > > thanks > > Chris Vin 16327 > > > > ______________________________________________________________________ _ > FSmail - Get your free web-based email from Freeserve: www.fsmail.net