Dude, you are lucky. The butthole who "tuned" my car is on the run and has disappeared. Apparently with lots of ppls money and stuff. Therefore you are not likely to get victimized by him like I did......

I'm now getting the 0300 errors as well and I don't like it one bit. Still, if the car will start and run reasonably well, I'll put up with it and try to find a solution. The AEM is a great unit for extracting tons of power from an engine but it does it at a price. If you are bothered by a car that does not run smooth like stock, the AEM is not for you. YMMV, but my experience with it was not good because I do not know how to tune a car and I don't have time, tools or inclination to screw around with it. OTOH, most if not all the really fast and powerful EVOs are running the AEM EMS or similar stand alone ems.

 

Meta,

I am the one who tuned the car, well the second time, the first guy blew you engine The cold start does need worked on when the car is cold to get it right. I probably have enough new information though to fix your car if you just e-mail me the current map you have.

Let me know if you want to do something.

David Buschur
www.buschurracing.com

 

I just wanted to address a few issues discussed in this thread.

-Cold Start
Raise the value in the Warm Up Enrichment Table until there are no more cold start problems. Also, make sure the O2 Feedback Min Coolant Temp is set to 120-140 so the O2 Feedback doesn't kick in too early and lean things out when the motor is still cold. With the Warm Up Enrichment Table set appropriately high, the AFR should be in the low 12s at idle when cold, then lean out from there until it is fully warmed up. Also, use the Coolant Retard Table to stabilize the idle when cold. Try 0 correction from 140F+ and -15 degrees at -40 coolant temp with a straight line from there to 140.

-Tach "sticking"
LS7 ALT is incorrectly turned ON, turn it OFF

-Inconsistency in changing weather conditions
Use O2 Feedback... There are also trims for Barometric pressure and air temp

 

Go into options / configure outputs ..

Pull up LS7

and disable it .. This will get rid of your " sticky tach " problem


mark
turbotrix

 

I would say if you are bothered by a car that doesn't run as smooth as stock, get someone to tune the AEM who knows what they are doing.

Jason.

 

Jason, I think less than 20% of the claimed AEM tuners could accomplish tuning a vehicle the drives like stock.

 

plain and simple, AEM is for people who have high stage cars, and are eager to accept some driveability issues for tuning with this standalone

its not for for people with bpu

 

Whats "BPU"?? Thanks

 

Basic Power Upgrades

 

bpu was coined by suprastore.com , just throwing out some terms at youse guys

 

Taken from Supra terminology..

 

I could name a few..


Dan

 

I'm just trying to lighten things up, but really it takes time to tune in the driveabilty and idle, full throttle is definitly a faster tune. I really wish the AEM would come with a driveability type tune where all you would have to do is scale the injectors a bit and go. Wishful thinking I guess.

Dan

 

I just drove an AEM equipped honda S2000 that has the Vortech kit on it and I thought it was smoth as silk. I drove it in traffic and on the highway and the car ran fine. The best part about it was when we got to the dyno the car put down 257whp and then my buddy went to work on the AEM and the car made 308whp within 4-5 pulls and under an hour. I think "my" Evo will run better with the AEM then it does with the current Dynoflash that is in the car.

 

Should run at least as good as stock, usually better with AEM EMS properly tuned. Especially EVOs that have big cams and crazy intake manifolds with weird throttlebodies and oddball stuff. They work far better with the AEM EMS than they would trying to retain the ECU.

On a bone stock EVO, the AEM EMS drivability isn't totally perfect, although I don't recommend it for bone stock EVOs to begin with. In fact I only recommend it under very specific circumstances or unless the owner is willing to learn how to tune it themself after the initial setup and professional tune.

The primary disadvantage with the EMS is smog compliance. I tune most cars for improved gas mileage, and that usually makes the smog emissions worse, although the car will get 30+ MPG on the freeway.