Originally Posted by cerealsurfer
Ha! Your mind went where mine did… got to be an ignition timing issue. Coil pack failure or TPS packing up giving the ECU the wrong load signal so spark is in the wrong place.

I replaced the coil pack, TPS and got live data from the ECU… all good. Still have the fault!!

Two sets of spark plugs, a new coil, TPS and Laptop ECU cable later……. What’s your Next move?

My next step would be to stop the 'Parts Darts' apprach, and scope it wink

Be systematic, and follow a logical diagnilostic path.

If you have access to good old fashioned Sun or Krypton tuner machine they still work as well as they always did, but they're only as good as the operator and much of the skills have been lost, a PicoScope is the moden equivalent of those big old tuner machines in a far more conveniently sized form factor.

If you're systematic, you avoid skipping steps, and resist the temptation to make assumptions.... you will inevitably find the issue thumbs