eManage Ultimate v2.16

[Racer_X]

Well, I spoke with Kenji Uchida (Trust R&D assistant manager) about the negative number problem. He was unaware of it, so I told him that I was at the Tokyo auto salon LAST YEAR also and complained about the problem. He was very cool and told me to e-mail him a log of it happening, and a config file and he would get the R&D dept to fix the bug on the GTO (3000GT). I e-mailed him the files yestarday, so I should hear back from him and Greddy USA pretty soon. I made sure he knew that ALL GTOs have this problem and that it needs to be fixed. Hopefully he is good for his word.

as far as the 2 step launch problem. Just take your RPM signal from the "ignition signal". It's one of the choices in the setup window. Logically, just based on the way the ecu is designed, you CAN NOT use RPM signal input from the PTU and use 2 step. here is why:

The PTU sends the RPM signal to your tach by reading every time a coil is triggered. When the E-manage engauges the 2 step, it skips some cylinders that the PTU is supposed to trigger. When this happens, there is no coil fire, and also.........no tach signal through the wire. This is why the Tach dies if you DO use 2 step other ways. The correct way to get RPM values to the EMU on our cars is to get it through the igntion input. This will give you a steady, smooth RPM curve, and allow you to use 2 step, no lift to shift, etc.

When you do this, the EMU actually does the same thing as the PTU, it takes the ignition triggers the ECU sends to the PTU, and counts every time one happens. It then makes an RPM value JUST LIKE the PTU. It uses this for RPM values.

In short, they aren't going to fix the "no 2 step with external RPM signal input" because..............they already did. You use ignition input instead, works flawlessly.

Another problem I remembered today was the fact that the Warning feature doesn't work with Knock values. I will E-mail Mr. Uchida about that also, and hopefully that will be sorted out as well.

The type of crank angle sensor we have is VERY prone to being noisy. I don't think there is anything that can be done on the inside of the emanage to smooth out that signal "software side". You might be able to add a capacitor and dome some hardware changes, but it actually works the way it is supposed to now (that's how it knows which cylinder is firing when, the big changes in signal strength. This is helpful if you do individual cylinder tuning). I can pretty much guarantee you that nothing will be done to change this.


SO basically, the ONLY problems the EMU has is
1. the -120 degree timing problem
2. no warning output for Knock values

Hopefully Mr Uchida can get these fixed Stay posted

[Elina75]

Good to hear they are aware of the problems now!

Yeah I'ven been using ignition signal for the rpm. About the crank signal, it looks like it's not just noise but some sort of "raw" crank angle sensor output signal, which just should be averaged per rpm. I don't know how usefull the crank signal would be, when the ignition signal is ok anyway, but still it would be nice to test it too.

And thanks for the rpm/rpm signal explanation, makes perfect sense.

Originally Posted by Racer_X

Well, I spoke with Kenji Uchida (Trust R&D assistant manager) about the negative number problem. He was unaware of it, so I told him that I was at the Tokyo auto salon LAST YEAR also and complained about the problem. He was very cool and told me to e-mail him a log of it happening, and a config file and he would get the R&D dept to fix the bug on the GTO (3000GT). I e-mailed him the files yestarday, so I should hear back from him and Greddy USA pretty soon. I made sure he knew that ALL GTOs have this problem and that it needs to be fixed. Hopefully he is good for his word.

as far as the 2 step launch problem. Just take your RPM signal from the "ignition signal". It's one of the choices in the setup window. Logically, just based on the way the ecu is designed, you CAN NOT use RPM signal input from the PTU and use 2 step. here is why:

The PTU sends the RPM signal to your tach by reading every time a coil is triggered. When the E-manage engauges the 2 step, it skips some cylinders that the PTU is supposed to trigger. When this happens, there is no coil fire, and also.........no tach signal through the wire. This is why the Tach dies if you DO use 2 step other ways. The correct way to get RPM values to the EMU on our cars is to get it through the igntion input. This will give you a steady, smooth RPM curve, and allow you to use 2 step, no lift to shift, etc.

When you do this, the EMU actually does the same thing as the PTU, it takes the ignition triggers the ECU sends to the PTU, and counts every time one happens. It then makes an RPM value JUST LIKE the PTU. It uses this for RPM values.

In short, they aren't going to fix the "no 2 step with external RPM signal input" because..............they already did. You use ignition input instead, works flawlessly.

Another problem I remembered today was the fact that the Warning feature doesn't work with Knock values. I will E-mail Mr. Uchida about that also, and hopefully that will be sorted out as well.

The type of crank angle sensor we have is VERY prone to being noisy. I don't think there is anything that can be done on the inside of the emanage to smooth out that signal "software side". You might be able to add a capacitor and dome some hardware changes, but it actually works the way it is supposed to now (that's how it knows which cylinder is firing when, the big changes in signal strength. This is helpful if you do individual cylinder tuning). I can pretty much guarantee you that nothing will be done to change this.


SO basically, the ONLY problems the EMU has is
1. the -120 degree timing problem
2. no warning output for Knock values

Hopefully Mr Uchida can get these fixed Stay posted

[10CentGT]

I don't know if it's the cause of the problem in my car. But I don't know what version im currently running. The car was dyno tuned and it was driving fine for a while. But now, it drives as if it's missing firing. I looked at the spark plugs and one looks like it's running extra rich. I send the injector for cleaning and flow matching and stuff but it came they clean and the data from them indicated that the injector were fine all along. I saw you guys were talking something about ignitions and newer updated software. Can someone help me. Thanks

[Racer_X]

first thing to do is make sure your ECU didn't die (if you have a 91-93 model car). I was tuning a 1G with an e-manage once and had an ECU die while tuning. It just happened to be that ecu's time to go. It would randomly skip and flood also. New ecu fixed the problem. Then it came back 2 weeks afterward (don't buy ecu's that have been sitting in a warehouse for hmm.......7 years). 3'rd ecu fixed all problems.

[Racer_X]

Well, Good / bad news about the problems with the EMU. Kenji Did get my e-mails and has reviewed them (good news), but the bad news is GTOs (300GTs) are SUPER scarce in Japan.......like almost non-existant, so they don't have any car to test them on. I know Pit Road M and Kaze are also in the Chiba area along with Trust, but I don't think eitehr of those shops have a car that Trust can use to "test" on. Kenji does have a friend with a GTO that they can use, but the car is currently down . Until that car get's fixed, they can't develop a fix for the timing bug and the Knock warning bug . Hopefully they will get a GTO to test with and get the problems fixed soon, but it probably isn't going to be "extremely" soon. . At least they know the problem is out there and were cool enough to respond. Very Good P.R.

[Black_Sunshine]

good info. please update us when you hear something back. i'll be using the safc neo until it's fixed, then i can get the ultimate.

[Trevor]

Originally Posted by Black_Sunshine

good info. please update us when you hear something back. i'll be using the safc neo until it's fixed, then i can get the ultimate.

You can run the ultimate. The bugs don't make it unusable.

[Black_Sunshine]

i've never dealt with something like the ultimate before. is it easy to get the tune to baseline? i have a laptop that i can use. i'm rebuilding the engine and modifying with 15g's and 550s and i wanted to run wastegate pressure and have the 550's run like 360s until i have the engine broken in. then i can get it dynotuned. i'm just concerned about getting it to start up and driveable. i know with the safc, that's not a problem.

[BlackStealth]

If you modify the airflow signal only (like the SAFC), then yeah it'll be simple to get a quick tune. I refer to this as stage 1 wiring.

I have a speed density map made for 15G turbos and RC550 injectors (stage 2.5 wiring) you're welcome to use should you decide to use speed density.

[Black_Sunshine]

thanks. i'll think i'll stick with the safc for now since i already have it. if i find that it doesn't suit my purposes, i'll get the ultimate.