Which ever way you look at it a K type injection system is a mechanical device which wears out. The newest of which is some 20 years old. More people than I can count have had issues with mechanical fuel injection systems right from the TR6 through to Porsche 924's.

An ECU is a purely electrical device, it does not wear out. Once a calibration is set it stays. I am not saying auxiliary items can't fail, wiring looms, coils, injectors or that the calibration is well done but that is also true of MFI. Unfortunately with MFI once a calibration in set it is able to drift.

The KE-Jetronic was a marvel of engineering, sadly one which was instantly bettered and superseded by EFI.

So whilst I have a soft spot for MFI I just can't agree that it is in any way better than EFI, in terms of simplicity to accurately tune, vehicle consumption, drivability, emissions, reliability, consistency.... the list goes on.

I'm not trying to be a dick at all, I'm just giving reasoned facts, and when it comes right down to it either system can be badly setup


Rob,