You mentioned replacing the fuel pump, did you have the tank thoroughly cleaned at the same time? I have heard in the past of forein particles in fuel tanks preaching the pickup causing similar issues as you describe, car stalls out, foreign matter resettles and car restarts like nothing is wrong.

Could be worth checking out at no cost to you just time over a weekend.

I had similar issues with the dash lights, ended up been the combination switch on the steering column, replaced that and all good afterwards no more issues with dash lights that also affected my tail lights.

Have you traced the loom to make sure their are no rubbed through wires causing the car to short out? Constantly read about our Kia's with electrical gremlins. Do you know some else with one that you could try a different ECU to see if that fixes the problem.

It is a shame as they are a fantastic little run around, I love mine to death and have modded it as far as I can without losing drive ability and keeping it legal for the road. As my youngest son uses it for his daily driver most of the time and I use it for highway work occasionally it must be reliable above all else. My biggest problem with mine is the fuel economy, it is woeful.

Good luck with it and I hope you find out what it causing the electrical gremlins, make sure you post up your findings.

Cheers, Chris,