3 replies to this topic

[coopertrooper2001]

Supercharged MPI running Emerald ECU.

When I pull off a motorway (constant 70-80 MPH) of say 12-25 miles my car goes really stuttery when I try to gently accelerate and almost stalls at idle. If I give it full throttle it stutters then springs into life. The first time it happened I nursed it for 2-3 miles, then stalled it and upon restarting was absolutely fine. Yesterday I kept the engine running and after about 1-2 miles it started running fine again.

Engine now 6 months old, fuel filter changed, original injectors, original fuel pump. Now has a pressure regulator.

Could it be anything to do with engine bay temperature/spark plugs maybe? The coolant temperature is fine and I also have the bonnet open at the back to let heat out.

Cheers.

[coopertrooper2001]

CAT maybe? Especially seeing as my CO is too high...

[minicooper1.3i]

You might get better luck in the Forced Induction section. Incidentally, there's an uprated inlet manifold on ebay at the moment for a supercharged mini. With quad injectors!

Here

Good luck!

[Sprocket]

As its a programable ECU it could be any number of things or a combination of things. If its the Emerald, which i think it is, I would be talking to them directly.