how do i fix the problem with the engine management system the light comes on and goes off when the light is on the engine shudders under acceleration. this is an intermitent fault which makes it more frustrating. are there any plugs or wires i should be checking and also where is the ecu in the car itself?

ben, April 2006

i have the same problem with a n reg cav but when i took it to the garage they said the light had to be on all the time otherwise the computer wont pick it up because its ony a att fault not a memorised one and as they have to turn the engine off to connect it to the computer it wont find the fault if the light is not on all the time from when you start the engine

shaun, August 2006

the ecu is in one of the footwells behind a plastic panel...check there is no water getting in as the y are prone to it...then get it on a code reader when the light is on

dave, April 2006