Check Engine Light

[Kevmondo]

I have a 2002 bugeye WRX, and when im cruising along the motorway at 60mph dead on, the check engine light comes onand stays on not flashing.

Mods at the moment are Power Engineering decat downpipe and the centre pipe is a decat or sports cat, im not too sure, but its deffo not standard, and a standard back box, it also has a ITG panel filter. Fuel wise its using V-Power.

It doesnt come on any other time other than at 60 mph. But!, it goes off after 24hrs or so! Does the ECU store it in its memory even though its gone off.? Any ideas why it could be coming on?

Thanks.

[redscooby]

Same thing happened to me, I changed the Cam position sensor, Crank position sensor, as the codes were telling me these were at fault. Then cleaned up the Lamba sensor and wires problem gone. I would start with the lamba sensor wires first. Hope this helps

[blue boy]

Are you going to join us at a CADS Meet Kevmondo?

[morgs]

the check engine light comes on wen the cars oil level in the gearbox needs topping up as mine did on the motoway while acclearting just a suggestion hope it aint nowt bad

[Diablo Blaze]

Best get it looked at, better be safe than sorry.

[killa]

The engine light normally comes on the newage cars due to the decat pipe, being fitted the cars ecu this there is a problem with the cat, but there is none there this should not happen if the car has been mapped, get the car plugged into a computer the cat effiency low code is p3040 or something like that, this code only comes on at cruising at a steady speed where the ecu takes a reading from the rear 02 sensor not the maf,