Nick has RPM spikes and engine hiccups

[rusefillc]

sometimes Nick experiences engine hiccups even while just idling parked

[rusefillc]

nik sept 26.zip

logicdata of starting

[rusefillc]

See https://rusefi.com/forum/viewtopic.php?p=42247#p42247

[rusefillc]

Trigger Angle Advance 93 degrees is very close to typical vvt position under normal condition

https://rusefi.com/online/view.php?msq=654&dialog=triggerConfiguration
https://rusefi.com/online/view.php?msq=654&dialog=triggerConfiguration_IO

note crazy shape when you step on gas

A work-around could be to simply change "VVT sync edge" from falling to raising - this would move cam sync away from trigger sync

open question what is the generic fix in the software maybe a warning if trigger sync too close to cam sync? open question what would be the magic number and what if there are legit cases where it's a legit requirement to sync cam close to trigger sync

[rusefillc]

@Abricosvw please flip "VVT sync edge" and provide a fresh log

[rusefillc]

We now have a new warning CUSTOM_VVT_SYNC_POSITION = 6675 which is triggered if VVT sync point is within 7 degree of trigger sync point

[rusefillc]

@Abricosvw reports issue is resolved https://rusefi.com/forum/viewtopic.php?p=42446#p42446

[rusefillc]

Still an issue

See https://www.rusefi.com/forum/viewtopic.php?f=18&t=2174