IceBlue8 Posted May 8, 2008 Report Share Posted May 8, 2008 Has anyone else experienced this? Some time ago the engine management system warning light came on and was diagnosed as a catalytic converter fault. This was confirmed by a second garage, but they assured me nothing was wrong with the cat or the sensor. Within a thousand miles or so the warning light went off. But then a thousand miles or so later, it came back on again. Then, you guesssed it, a thousand miles or so later it went off again! It's a 2002 2.8, if that's relevant. Any ideas? Link to comment Share on other sites More sharing options...
alantong Posted May 8, 2008 Report Share Posted May 8, 2008 Its probably a lazy oxygen / lambda sensor either pre or post cat. The other possibility is that you have picked up a cr@p load of petrol. Either of these could fool the engine management into thinking the catalytic converter is not doing its job properly. The cure for both is often the same - fill up with some high octane fuel and have some fun giving the car a good thrashing. HTH Alan Link to comment Share on other sites More sharing options...
IceBlue8 Posted May 8, 2008 Author Report Share Posted May 8, 2008 Like the idea of high octane fuel and a good thrashing - off to Aberdeen next week, so as long as I watch for the cameras with the RoadAngel, that should do! I'll tell the wife that this was technical advice! Thanks Link to comment Share on other sites More sharing options...
Ska Posted May 8, 2008 Report Share Posted May 8, 2008 I'm pretty sure that the 2.8 only has pre cat O2 sensors BTW Link to comment Share on other sites More sharing options...
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