Expalin more on what throttle jerk is?
10% is not much, for instance Vortec heads swap needs like 200%!
To help you decide what it needs you need to understand the difference of TPS AE and MAP AE. AE-TPS is for when the throttle blade moves, that's it, very short like millaseconds. AE-MAP finishes off the transition and is much longer, like 2-3 seconds.
Yes if the change did not help always revert back.
Did we ever see a data log after warmed up and driven, then idle in drive and park for a minute? What I'm getting at is IAC count to be as low as possible.
It could be a spark timing issue! You have increased spark correct? Sometimes when spark advance is more on the performance side it has enough spark for cold conditions, then you have to much Cold Spark added on top of that!
Do a data log of the cold start issue and post it with your current bin and we can take a look at how much spark is going on through this issue.
Only when it's rich! The 108 is bottomed out so it can't do anymore, this is always an issue at idle with aftermarket cams. But could be to much fuel pressure? Or a vacuum leak! EGR stuck slightly open? IAC count to high... meaning not enough air mixing with fuel over the throttle blades and it drips causing a wet (wetter then normal) intake.
Where you been?
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