I have /had a serious issue on hot start, (even with hot start kit fitted). At that time the timing modulation was at 93 96 range nothing below that.
Then the advise I got was the t/chains stretched. So changed chains, h/gasket, sump gasket, refurbed injectors etc in early December '16.
I am not sure this idle issue was there before the repairs in December'16 but it was more prominent / appeared in mid January '17. Then reset static timing
but still the modulation 40-93 range.
Now I have replaced;
CPS, 4th Injector, starter solenoid - all genuine, brand new parts. But the idle fluctuations/hunting remains with more prominence.
No faults shown on Nanocom. Timing modulation is at 42 to 94, hot engine idling.
Now, I'm scared to take it out as it cuts out randomly at traffic lights while waiting in D. This happened like once in every two weeks.
As it is I have no other way except suggestion by N2O. Waiting for his instructions to do that