Rough Idle Trim issues after VE-MAF Tuning

[Chalky]

Just finished up VE and MAF tune. Car picked up a rough idle before MAF tune, not bad but worse than before tune.

Car is also showing slightly positive fuel trims when cruising LTFT and higher when idling. Driver side is +4 when idling and 3.9 under full throttle.

Pass side is just slightly with worst with thims of .8 and +1.6 at full throttle. AFR is almost perfect match to PE!

Is that kind of discrepancy between banks normal/acceptable?

Does VE Table have any impact on idle?

Commenst/suggestions welcomed!

[TAQuickness]

VE will effect idle. You will want to get b4307 in line to help with idle

[98SS2836]

I have a slight diff in banks but it ave. it self out. You dont want + lt trims they will add fuel to wide open throttle.

[Chalky]

VE will effect idle. You will want to get b4307 in line to help with idle

.

How do I make adjustments in B4307? I never touched this table when doing MAF and VE.

[Chalky]

I have a slight diff in banks but it ave. it self out. You dont want + lt trims they will add fuel to wide open throttle.

Makes me wonder if I need to go back and make another pass with VE table. Lower end is a bit jagged!

[TAQuickness]

.
How do I make adjustments in B4307?

There's ton's of info about this table in this forum, so I'll only give you a few more hints, RAFIG & RAFPN

. I never touched this table when doing MAF and VE.

Good. You're not suposed to.

[superls1]

There's ton's of info about this table in this forum, so I'll only give you a few more hints, RAFIG & RAFPN

Unfortunately, none of it is well organized, and I think most new users will be overwhelmed if they simply search for RAFIG, read all the threads, and then try to decide what to do.

[Chalky]

I did the search and review last night. Decided to focus on VE table first and idle cells. They ares still showing very lean.

[TAQuickness]

Unfortunately, none of it is well organized, and I think most new users will be overwhelmed if they simply search for RAFIG, read all the threads, and then try to decide what to do.

figuring stuff out is half the fun. don't want to ruin it for anyone.

[Chalky]

Unfortunately, none of it is well organized, and I think most new users will be overwhelmed if they simply search for RAFIG, read all the threads, and then try to decide what to do.

Fully Agree. Still do not understand how B4307 comes into play when the only changes are to VE and MAF table.