I'm getting worried. E reg 325i Touring M20
My poor running problems continue. All the sensors appear to be working correctly, blue temp sensor has been replaced.
Engine starts and runs fine for 15-20 minutes and then starts massively overfuelling. This results in the engine dying in a cloud of fuel rich smoke! It doesn't seem to matter if its sitting at idle for this time or out on the road, after 15-20 minutes the engine just goes stupidly rich.
Mechanic is baffled and thinks it can only be the ECU but we don't have a spare to check with. If you've got one, or if you have any better ideas, please let me know!
Cheers
Morat




