Techsalvager

Has anyone setup Enhanced AE ( EAE ) on ms2 for their 1.6 motor?
If you have would you mind showing me your tune or changes to EAE. I just enabled it to see what would happen, stuff didn't go down well.

turbo4life

you should set the acceleration enrichments to 0.0

and are u running the stock non leaner tps sensor?

if so you should upgrade to a gm tps

Braineack

iTrader: (62)

(zack morris's phone)

You still need regular ae for quick throttle stabs.

Techsalvager

variable TPS

when I tried the default EAE I with my current ve table. No issues with normal AE. But with current table once I got near liek 4k seemed like my afrs went high lean.

y8s

iTrader: (8)

EAE doesn't do anything at steady state.

Techsalvager

I disagree, EAE does stuff indeed at steady state without engaging normal AE. I was just accelarting slowly and hit into the issue.
What I'm wondering if anyone has tuned EAE for the 1.6 or 1.8

Braineack

iTrader: (62)

(zack morris's phone)

We both have. Ms3 docs have a writeup on the theory.



Eae works with map changes so if it wasnt injeting enough fuel that could be your issue. It actually calculates how much fuel pools on your walls when accelerating and how much gets pulled when lifting. You\'ll tune it for throttle manipulations both on and off. But heavy stabs still require tuning the normal ae to inject enough based on rapid tps changes

y8s

iTrader: (8)

by steady state i meant "no acceleration"

if your MAP is changing, EAE is working. take the Add To Walls coeff and increase it across the MAP values where you see it go lean when you're accelerating. keep the curve smooth.

Techsalvager

alright I will give that a go and see what I can do.

Braineack

iTrader: (62)

5th gear on the highway is the best time to tune it. you're just correcting the enrichments based on map changes, so you should be able to manipulate the curve in such away that if you slowly press and hold the throttle the AFR does not change, same when releasing it. It's not about stabs, it's about manipulation.

Since tuning my EAE, I can go WOT in boost and ease off the throttle and see my AFRs stay perfectly flat like I never lifted up. Then I can ease back down and again, boost will rise and AFRs will stay flat.

When off throttle at ilde or shifting, you'll still need regular AE to supply fuel based on your TPS rate, but EAE reduces the amount needed.

Techsalvager

hmmm gotcha so basically with EAE, changes in throttle should make AFRs more steady

Braineack

iTrader: (62)

it's changes in load technically, but the throttle causes that in most cases

the main tables to tune are the pulled-from and adhere-to tables. Basically the code determines a "pool" of fuel that's sitting around, and uses this data while calculating everything else.

If you press the throttle and notice it going lean, then you'll want to increase the stuck-to-walls correction, this is telling the MS that it needs to inject a little more fuel when the load changes at such and such rate, because some of it is adhering to the clyinder walls and not keeping the AFR constant.

Likewise if you lift the throttle, it will assume that fuel is getting pulled from the walls and not inject as much fuel under these lift-rates because it's being sourced from the pool that it has been calculating.

Then you can fine tune the final curves by RPM and CLT temps as needed.


If you don't have Seq. Fuel, using lag compensation should help squeeze better throttle repsonse out of your setup, but I think they updated the code so this was negated and not even available anymore.

Techsalvager

running 3.1.0 and the option is still there and yeah I'm on batch fire still.

Yeah when I said throttle I should of said load. ok I get the idea more so now. wonderful maybe this will help with around town fuel economy after getting it tuned in.

Techsalvager

do you guys alter any of the maps past atmo usually?

Greg G

Could you post a graph showing poorly tuned EAE vs properly tuned EAE?

Braineack

iTrader: (62)

this is what I'm running now.

Techsalvager

EAE is sweet. stuff has helped off coming off the throttle and not seeing it drop to 10 afrs, etc. Still tuning it in better.

y8s

iTrader: (8)

Ken says to use the ATW to tune rising MAP and the SFW to tune decreasing MAP.

Pick an RPM (cruise ~3000 works) and tune as much as you can there in 5th gear.

Then go back and tune other RPMs by slightly tweaking the ATW/SFW RPM maps as you diverge from the one you tuned.

the manual is pretty good on how to tune it.

miatauser884

iTrader: (11)

This thread has given me the itch to do some tuning, it sucks that it's so hot.