E46 M3 issues after storage

[Jamie03M3]

Morning all,

My E46 M3 has been stored for a while (sacriledge I know) but work commitments made the choice for me.

Yesterday I needed to move it. The fuel was really low around 15 Miles. I removed fuse 54 and oil primed the engine.

She then started fine but started running like a dog. I plugged in and the reader showed there was misfire on various cylinders with and without cutout. And some strange fault to do with an empty tank.

I popped to the petrol station and got a can of Super then tried again. It ran, but still misfired. I tried to drive it just on my road, but it cut out and now will not start.

I had my 'M' head on yesterday and proceeded to flap.

The fuel filter probably hasn't been changed for over 2.5 years. Would this be a good place to start?

Any help appreciated.

[darreni]

Have you read the codes? Misfires usually coil packs or possible one of the throttle position sensors.

Sorry just re read that you have read the codes.
Have you used inpa or DIS/GT1 or a generic code reader?

Edited by darreni on Monday 25th March 10:44

[WIL35]

How long has the car been stood unused?

Are you able to take the plugs out to see if any of them have anything obvious? Might be worth starting there to see if fuel is getting through or the plugs have become fouled up.

[Cryssys]

Sounds like the problem I had with my E36 evo last year after it had been in the garage over winter. Solved it by changing all the plugs and it’s been fine ever since. Hope it’s a similarly easy fix for you

[NBTBRV8]

The issue ours had was that the rubber sealing ring between the pump and the fuel tank under the seat melted like gold under heat and it blocked the pump and killed it.