Misfire error code - but no misfire!

Hmmm.. this is a tricky one.

Got my soft-top 02 model Jimny (older single-cam engine) back and running and sorted a dodgy EGR Valve and the little Jim seems very happy. Only problem is that about every third trip out the engine mangement light will come on with an error code of 'misfire in cylinder 4' or sometimes 'random misfire in all cylinders' - I can clear the codes but after about 3 or 4 trips it'll come up again.

Thing is, it doesn't ever feel like it's misfiring at all or struggling where slow/fast hot or cold.

I'm thinking of swapping the lower sensor (crank position??) that the soft top has postioned at the front of the oil sump as as starting point - does anyone know if this is different to the one used on the standard hard-top Jimny? Obviously if anyone's got any ideas on this strange issue please let me know as it's quite frustrating....

Thanks,

DT.

Sounds like a coil pack fault


Dan

The ECU can detect a misfire that isn't really noticeable. It may just need a service recently if it hasn't had one for a while.

It'll be no surprise if it can be that sensitive - I had the engine out on the drive and was swapping broken pistons a month back so a proper service and tune-up looks like it might sort me out....