I use VEMS V3.6 on my dragcar powered by a cbr1100xx engine. Until now the engine was running on four carburetors plus nitrous and the performance was very good (8.7sec@402m). I turned to fuel injection and VEMS in order to use all the extra racing features (like launch control, shift cut, etc) and be able to have a more precise engine control.
Wiring details needed. FILL THEM IN
Firing sequence: 1,3,4,2 (right ?)
Ignition outputs (from bottom to top):
- cyl2
- cyl4
- cyl3
- cyl1
Without the wiring information we cannot help !
Injector outputs
- cyl2
- cyl4
- cyl3
- cyl1
Other outputs in use:
- VERY Important: fuel pump relay.
- idle air valve (PWM or stepper ?)
- other ...
SOFT/FIRM
In the past (1.0.73 firmware) I was using MegaTune software with no problem.
answer this questions please
- someone else configured the ecu for you before ? (apparently yes)
- where is he ? Why does not he help you now ?
- where is the saved configuration (config / tables dump) that was in use when it worked without problem ????
- why don't you use the same proven configuration that worked ?
- if you don't have it because it was not saved (bad mistake), than it's the same as starting the whole setup procedure again. It can be done, but lots of information needed.
- what did you try to achieve when you messed up the configuration ? (it is messed up now as it is misconfigured: there are output collisions ! and naturally it does not work right)
At the moment I use the VemsTune0.10.20(2010.03.08) and the firmware uploaded on VEMS V3.6 is 1.0.73.
TRIGGER
I use the original trigger wheel and VR sensor of the cbr1100xx with no problem. The cbr1100xx (carburated model) uses a 9teeth trigger wheel with one big missing tooth (later injection model had a 12teeth trigger wheel with no missing teeth).
It's a 12-3 pattern (toothwidth=30 degrees).
Unfortunately this is not supported with 1.1.x firmware, you can only use N-2 or N-1 pattern as set in the primary trigger options. You might need to use 1.0.x firmware for now with this pattern.
The following Trigger Setting were tested as long as I use the Megatune and were proven to work fine with 1.0.x firmware. It's not a MegaTune / VemsTune issue. It's an 1.0.x / 1.1.x issue. 1.1.x times from the last possible tooth.
The closest you could go with 1.1.x is N-2 with toothcount=10 (but even that unlikely to work, and extremely unlikely to work well). With N-2 firmware would decide to trig/start dwell from 0..9 (whatever is last) but only 0..8 tooth exist here, so at certain RPM/load it would wait indefinitely for nonexistant tooth, (until reboot).
Trigger Edge: Rissing
Trigger Type: Missingtooth
Missing Tooth Type: N-1
Special Trigger Type: Normal
TDC After The Trigger: 45.0
Number Of Teeth On Wheel: 9
First Trigger Tooth: 1
Next Trigger Tooth: 6
Filtering: Disabled
Advanced Filtering: Disabled
The ignition is DUMMY type. The ignition outputs are set to 01..00 and invert driver output and dual output mode are disabled. One coil is nonnected on ec36-pin34, the other one is connected on ec36-pin36.
The problem is that the ignition outputs are not firing as they should (I use the test function through VemsTune). Sometimes both coils fire together sometimes they don't fire at all. I belive the config file http://www.vems.hu/files/AutoVeltiosis/v3.3_n002710-2010.03.17-14.28.02.vemscfg should be checked and corrected.
But wiring details are needed to correct it
'''fuelpump_channel=D7
Seems very wrong !''' This can cause bad output problem. Fill in the wiring info above.
I found out that while I was trying to test the InjGroup 7 the shifter was activated. So the outputs are all messed up.
I get the message OUTPUT COLLISIONS - because that is the case ! Fix the collision.
IMPORTANT information
Hi Nouchoutidis,
- We updated your page (this)
- we wrote you what is the problem with the LATEST config you posted
- and sent you email message.
You neglected our instruction about 8 times before !!!!
Start filling in the needed info, including the wiring details so we can help.
You need to update your page, apparently
http://www.vems.hu/wiki/index.php?page=MembersPage%2FAutoVeltiosis
where we
the configuration you posted is invalid, as it has OUTPUT COLLISIONS
Disable outputs. and start again.
There is no reason
Post new config
> if you can't help, inform me at least to stop trying.
You need to change the configuration so NO output collision !
- A) Disable outputs and enable the correct ones
- B) Save config, upload and update your page (this)
- C) If you write wiring details above, we could even help to approach a valid config, but you have no wiring details so we cannot do that.
If someone neglects our instructions than we just stop giving him instructions (of course).
So do at least A) and B).
If you do not neglect our instructions repeatedly, and update your page (this), we can help you. Otherwise we cannot.
Do NOT write mails without updating your page!