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Any info on making the map switch work guys. I have mine connected up and when i switched maps the car ran lean as the second map was just a base map as supplied with ecu. So what I did was save my good map on the computer. Flicked switch. Uploaded good map onto config b. Car should then have the same map on both switches. But now when I switch to config b the engine dies. Vems shows config switching ok and can read rpm etc but engine just dies.
Any info on making the map switch work guys. I have mine connected up and when i switched maps the car ran lean as the second map was just a base map as supplied with ecu. So what I did was save my good map on the computer. Flicked switch. Uploaded good map onto config b. Car should then have the same map on both switches. But now when I switch to config b the engine dies. Vems shows config switching ok and can read rpm etc but engine just dies.
Any info on making the map switch work guys. I have mine connected up and when i switched maps the car ran lean as the second map was just a base map as supplied with ecu. So what I did was save my good map on the computer. Flicked switch. Uploaded good map onto config b. Car should then have the same map on both switches. But now when I switch to config b the engine dies. Vems shows config switching ok and can read rpm etc but engine just dies.
What have I done wrong.
Cheers des.
Depends on your firmware version, I had this best working with 1.1.74
Before uploading to the b site, did you remember to change the config switch in the map from a-b to b-a?
Thanks Jamo, yea the switching bit seems ok eg a to b and b to a. Vemstune seems to show the config changing when I flick the switch, but the engine completely dies on config b and runs fine on a, with the same maps in both. Need to check firmware, bit it could be 1.74 to 1.76 from memory.
What happens if you switch to b and try staring the car? don't know on this one I never had a problem mind you my ecu cam with this preset up from pnanassy!
The same thing happened to me, had to check out where the different inputs were used, turned out that launch control was enabled and maybe some other function used the same input as the config switch. Disabled launch control and checked that only the config switch used the input (channel 6 on my vems), after that it was all good
Leif-Helge
-91 S2 VEMS and Comp Turbo
-12 B** 530XD Touring "S2 parts transporter, and daily driver"
Thanks Jamo, yea the switching bit seems ok eg a to b and b to a. Vemstune seems to show the config changing when I flick the switch, but the engine completely dies on config b and runs fine on a, with the same maps in both. Need to check firmware, bit it could be 1.74 to 1.76 from memory.
Where I can get ISV Adapter Harness and VR sensors adapter?
I bout VEMS ECU but don't have ISV Adapter Harness.
Also I don't understand about Wideband Harness and Terminate Pins.They are needed to do or not?I puting ABY in typ 85.
I want to set up a configuration on 1.1.81 firmware, but i need some help regarding how to view the latest firmaware on vemstune in order to set it up in offline mode.
Here is what i have:
Latest vemstune
1.1.81 firmware installed
I dont have a 1.1.81 config (otherwise it would be straight forward)
I go to projects and start a new one with 1.1.81 firmware, save it, and then load it up. It does not allow me to drag and drop settings from another config though! Does that mean that within a project i have to do everything manually?
The question is: How can someone start a config on the latest firmware, when vemstune does not provide the baseline config when you install it alltogether?
I noticed that the gear depended boost works on 1.1.81 and not on 1.1.80, so rather than do all the settings on 1.1.80, i might as well use the latest one. Can someone advise on this one? Do i need someone to send me a baseline 1.1.81 config so i can work offline? is that how it works?
You do have a 1.1.81.ini however there is no default config example file for 1.1.81 that you can open in vemstune offline in defaultfirmware configs to give you an example map.
1.1.81.ini is there under the vemstune/config folder.
Once you've upgraded the ecu to firmware 1.1.81 and saved the map for offline use, when you open it you will see vemstune open the file with config 1.1.81.ini
Dkw dude that's good info I will check that out. Jamo yea the car won't start on config b at all.
To upgrade firmware surely you don't need to redo all the mapping do you. Don't you just upload the firmware then drive. At least I hope so, maybe if your going from a low version firmware its different.
Spions, were did you get your vems from. Mine has the idle stuff as standard. No loom adaptions required. You do need to run some extra cable for wide band and swap 2 wires at crank vr sensor.
Cheers des
The idle valve requires a diode installed to make it run better with VEMS, it's not part of the VEMS ecu by default. VEMS can still drive the IAC without it.
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