AEM We need to start a help group for all AEM users
12-04-04, 09:59 PM
#1
Rotary Enthusiast
Thread Starter
We need to start a help group for all AEM users
I wanted to start a flow of information and try to pull together peolples experiences and knowledge on using the AEM EMS. I have checked and searched here and the AEM forum and found a seriouse lack of information. Many questions are asked with no replies. Many extremely important questions have never been asked. It's no wonder so many people have so much complaints of not even able to start the car with the EMS.
So how many people with AEM still have startup issues and problems, please speak up and post you problems and calibration files and let's try to get things off the ground.
Those that have been successful, please post your calibration file along with your setup (turbo type, fuel system, ignition etc.). List the problems you have encountered and how it was solved.
No question is too small. No information is too insignificant. Let's build a knowledgebase that everyone can use.
So how many people with AEM still have startup issues and problems, please speak up and post you problems and calibration files and let's try to get things off the ground.
Those that have been successful, please post your calibration file along with your setup (turbo type, fuel system, ignition etc.). List the problems you have encountered and how it was solved.
No question is too small. No information is too insignificant. Let's build a knowledgebase that everyone can use.
12-05-04, 01:59 PM
#2
No it's not Turbo'd
Well that's what this forum is here for,
But what I did when I first started monkeying with it, I ran the car warm on the stock ecu, removed it and attached the Aem, I loaded the basemap, and it ran fine, I made note of things like AFR, Enrichment and such. Let it cool down then I strted fiddeling with stuff untill eventually the battery started giving out (Optima Pc9600) or whatever that motorcycle battery is... and put a charger to it, and tried a couple more things in warmup enrichment and it turned over, idleled badly, and I messed around with that to get the AFR to what worked when warm, and I called it a day....
Later on I got scared due to some points getting really lean AFR's... and I just felt uncomfortable tuning those by myself, since I highly discrourage people to tune and drive...
So I took it to AEM, and they ironed out the issues, and when I got it back it was fun to drive, alltough AEM tuned it for 10 PSI, and the stock ecu, was running 12 PSI safely.... so it was less fun... I figured i'd fiddle with it sometime, and get it back up to 12... but then I wrecked that car, and the new one has had turbo issues from day 1 and I don't want to tune something broken... waiting for single....
-Derek
But what I did when I first started monkeying with it, I ran the car warm on the stock ecu, removed it and attached the Aem, I loaded the basemap, and it ran fine, I made note of things like AFR, Enrichment and such. Let it cool down then I strted fiddeling with stuff untill eventually the battery started giving out (Optima Pc9600) or whatever that motorcycle battery is... and put a charger to it, and tried a couple more things in warmup enrichment and it turned over, idleled badly, and I messed around with that to get the AFR to what worked when warm, and I called it a day....
Later on I got scared due to some points getting really lean AFR's... and I just felt uncomfortable tuning those by myself, since I highly discrourage people to tune and drive...
So I took it to AEM, and they ironed out the issues, and when I got it back it was fun to drive, alltough AEM tuned it for 10 PSI, and the stock ecu, was running 12 PSI safely.... so it was less fun... I figured i'd fiddle with it sometime, and get it back up to 12... but then I wrecked that car, and the new one has had turbo issues from day 1 and I don't want to tune something broken... waiting for single....
-Derek
12-05-04, 05:38 PM
#3
Rotary Enthusiast
Thread Starter
Thanks for the reponse. When you said you had the stock ecu for warm up and put in the AEM, I'm assuming you have stock engine, stock turbo and fuel system?
12-07-04, 04:06 PM
#4
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I had my friend's car tuned by Jason Siebels from AEM, he dyno tuned it, had great power, only problem was startup problems and stalling at first until Jeff at Rotary Power filled in what was missing on the tuning. Great system, works perfect now. Check out my post, has the map on there to get an idea.
12-09-04, 01:07 AM
#5
No it's not Turbo'd
Originally Posted by Trexthe3rd
Thanks for the reponse. When you said you had the stock ecu for warm up and put in the AEM, I'm assuming you have stock engine, stock turbo and fuel system?
Coming Soon (I Finally ordered it) Sibels tuned mine too, but not on a dyno, he said he would but afterward fessed up that he tuned it on the street... Jeff Definitely knows his stuff. He rebuilt my motor.... I hope he'll be able to get greta numbers from my turbo/ecu setup...
I'm putting a lot of faith into AEM as I have also bought the CDI kit from them, I hope it will work flawlessly or else to forge the way for future Rotary oweners to be able to purchase something better and cheaper than the HKS system.... yet that is / or will work just as well if not more reliably.
05-14-05, 02:33 AM
#6
Racing Mechanic
I have a FD3S with 3mm aphex seals , street ported , big intercooler , stock turbos (for the moment) running in secuential mode, Stock injectors, stock fuel pump, cool air induction , wide band 02 sensor , all the emition things disable , like the air pump.
I have a lot of problems with the AEM , first , it dosen't start at all , so I recalibrate the ingnition triger sensor , and it started (obiusly I start the engine with the standar ECU and when it reach the propeer T , i change it to the AEM.
I can't read the O2 sensor signal with the AEM EMS , and leter I notice that the AEM EMS don't read the intake temperature sensor too.
I fix the problem of the Intake temperature sensor , but only in a test way.
Then the car works OK , but I have problem with the cool start and then with the hot start.
I start running at 6psi. It was all normal , at that moment.
The problem was when I try to rice the boost to 10psi , I try to mod the calibration , but at 4000 rpm the O2 sensor show me lean , allways lean , I don't push the engine harder cause i was afraid to broke it. So I try to get back to the old 6psi setting. But when I try to run at 6psi , the car run rich , rich , and rich. I try to remap the fuel curve , but allways go to the rich and fat side.
So I take off the AEM EMS , and I sent it to the AEM company for a compleate check.
In this moment I'm wating for the AEM response , and for the moment I will buy the 1600cc ingectors , the RP fuel pump , and a fuel regulator.
I hope that I will have no more problems , I'm wating for the AEM answer.
I have a lot of problems with the AEM , first , it dosen't start at all , so I recalibrate the ingnition triger sensor , and it started (obiusly I start the engine with the standar ECU and when it reach the propeer T , i change it to the AEM.
I can't read the O2 sensor signal with the AEM EMS , and leter I notice that the AEM EMS don't read the intake temperature sensor too.
I fix the problem of the Intake temperature sensor , but only in a test way.
Then the car works OK , but I have problem with the cool start and then with the hot start.
I start running at 6psi. It was all normal , at that moment.
The problem was when I try to rice the boost to 10psi , I try to mod the calibration , but at 4000 rpm the O2 sensor show me lean , allways lean , I don't push the engine harder cause i was afraid to broke it. So I try to get back to the old 6psi setting. But when I try to run at 6psi , the car run rich , rich , and rich. I try to remap the fuel curve , but allways go to the rich and fat side.
So I take off the AEM EMS , and I sent it to the AEM company for a compleate check.
In this moment I'm wating for the AEM response , and for the moment I will buy the 1600cc ingectors , the RP fuel pump , and a fuel regulator.
I hope that I will have no more problems , I'm wating for the AEM answer.
05-14-05, 08:04 AM
#7
Rotary Enthusiast
Thread Starter
Why don't you send me your calibration map and I'll take look at it and see if there's anything I can do. send it to michaelchu@bellsouth.net
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05-14-05, 09:42 PM
#9
No it's not Turbo'd
We don't need a support forum, we need a recovery forum 
I've just dropped over $1K in tuning, dyno fees, getting ripped off by a guy that works for AEM, and said he'd tune it for me.... getting Steve Kahn out here to So Cal. and what do I have to show for it !?
10 Fowled Plugs 8 (bur9's) 2 (bur7's)
1 Fried AEM Ignition Amp (CDI) (I'd return it but they're "out of stock")
1 Poorly ideling FD, with ignition breakup past 5k RPM
1 Empty wallet and broken spirit....
Anybody want to suggest another EMS to buy with support in socal besides Power FC ???
Haltech
Microtech
Wolf
??
I've just dropped over $1K in tuning, dyno fees, getting ripped off by a guy that works for AEM, and said he'd tune it for me.... getting Steve Kahn out here to So Cal. and what do I have to show for it !?10 Fowled Plugs 8 (bur9's) 2 (bur7's)
1 Fried AEM Ignition Amp (CDI) (I'd return it but they're "out of stock")
1 Poorly ideling FD, with ignition breakup past 5k RPM
1 Empty wallet and broken spirit....
Anybody want to suggest another EMS to buy with support in socal besides Power FC ???
Haltech
Microtech
Wolf
??
05-14-05, 11:20 PM
#10
Senior Member
DCrosby, I take it you're fed up with the AEM? That's no encouragement for me and trying to get my AEM running. Maybe I'll have to jump ship if I can't get this tuned right. Torque Freaks are supposed to be coming to San Jose next week and I'm thinking about having them tune it. Any thoughts?
05-15-05, 12:48 PM
#11
No it's not Turbo'd
Ask them honestly, in Their personal experience. how long has it taken, to tune a setup as similar as possible to yours....
I can definitely concur that their Ignition setup is a piece, to their defense they said MSD fails as well, but they seem to be doing okay, while I have little hope for the CDI to ever work the way the HKS Twin Power does...
I can definitely concur that their Ignition setup is a piece, to their defense they said MSD fails as well, but they seem to be doing okay, while I have little hope for the CDI to ever work the way the HKS Twin Power does...
05-24-05, 11:06 AM
#12
No it's not Turbo'd
Good News / Bad news
Good News, I'm not quite done with AEM yet, bad news, I'm pouring more money down the drain !
Jason From AEM is going to tune my setup as an independant tuner, for a considerable amount of money, but on the bright side, if he can't do it No One, can. And it's still less $$ than I'd spend on another ECU, and tuning....
I don't know what to do, since there's no guarantee that another ECU, Tuner won't be a long road to dissapointment, and more $$ spent, than just going with AEM and Jason....
-DC
Good News, I'm not quite done with AEM yet, bad news, I'm pouring more money down the drain !
Jason From AEM is going to tune my setup as an independant tuner, for a considerable amount of money, but on the bright side, if he can't do it No One, can. And it's still less $$ than I'd spend on another ECU, and tuning....
I don't know what to do, since there's no guarantee that another ECU, Tuner won't be a long road to dissapointment, and more $$ spent, than just going with AEM and Jason....
-DC
06-02-05, 01:16 PM
#13
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DC
Watch him every step of the way and learn.. There is nothing magical about tuning with an AEM, its just a little more difficult to understand.
I have been tuning PFCs and Haltechs for a long time but just recently I expanded into Hondatas and AEMs. The AEMs I am working on are on Hondas but the systems are comparable. I will tell you that the reason AEM is a difficult system to understand because of the way it presents the parameters. Almost all the same parameters are available to the PFC tuner.
The only other difference between the AEM and the others is the degree of resolution available. Less than even the PFC by a few pressure rows.
Stick with it and if you have some specific questions about issues that you think might be comparable between the boingers and rotaries , I would be glad to try to give it a shot answering with what I have done to the Hondas (btw the hondas are preludes with 750 cc injectors and a secondary rail with 550s, a complete aftermarket turbo system and about everything else that can screw up a tuner's life)
Watch him every step of the way and learn.. There is nothing magical about tuning with an AEM, its just a little more difficult to understand.
I have been tuning PFCs and Haltechs for a long time but just recently I expanded into Hondatas and AEMs. The AEMs I am working on are on Hondas but the systems are comparable. I will tell you that the reason AEM is a difficult system to understand because of the way it presents the parameters. Almost all the same parameters are available to the PFC tuner.
The only other difference between the AEM and the others is the degree of resolution available. Less than even the PFC by a few pressure rows.
Stick with it and if you have some specific questions about issues that you think might be comparable between the boingers and rotaries , I would be glad to try to give it a shot answering with what I have done to the Hondas (btw the hondas are preludes with 750 cc injectors and a secondary rail with 550s, a complete aftermarket turbo system and about everything else that can screw up a tuner's life)
06-16-05, 09:38 PM
#16
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Originally Posted by FDeez
Torque Freaks are supposed to be coming to San Jose next week and I'm thinking about having them tune it. Any thoughts?
DC -- Jason S is also a very talented tuner and has plenty of experience with RX7's. I'm confident your issues will be quickly resolved in his hands
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