Can anybody please help or advise?

Last week the engine management (check engine) light flashed on briefly.
Since then it has come on a couple of times, however I have started to notice a pattern.

The check light comes on when the engine is idling, ie when giving way at a junction or when coasting if coming to a stop.
If I just apply the accelerator pedal the warning light goes out. Even the smallest touch of the accelerator is enough.

On Saturday I tried an ECU reset and since the check light has not come on.

For info the car is a UK 98MY with de-cat exhaust and has been re-mapped by Power engineering all about six months ago with no problems.

Coincidently the car is booked in for a service this week so the dealer may be able to pin point the problem.

Thanks in advance,
Graham.

 

if you connect the black jumpers only,and turn ignition not the engine the fault code will flash up on cel(it wont now youve re-set it)then you can cross reference with http://www.saxonfields.freeserve.co....e.htm#_Sensors