1
Wiring & Sensors / Re: Coil ignites with key on
« Last post by MWfire on December 10, 2019, 11:04:52 pm »I think problem is in cable of crank sensors. It needs to be shillded and good grounded.
Enabling enthusiasts and racers to extract the potential from their engines
News:
When asking for technical help at the very least let us know the version of firmware you are running.
Cliff's Calibration (Mapping) Guide is a MUST READ: http://www.vemssupport.com/forum/index.php/topic,97.0.html
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2
Wiring & Sensors / Coil ignites with key on
« Last post by lsone_chevelle on December 10, 2019, 07:08:57 pm »Hey guys,
Ive done a done of searching and have not been able to successfully find an answer.
The car is a obd2 MK3 VR6 12v golf with a Lugtronic PNP VEMS ecu.
The car runs, but I have an intake manifold that is split wide open that now needs to be repaired.
When I turn the key to the on position, but not cranking. The coil sparks, thus igniting any residual fuel. Intake valve was open when I turned the key and boom.
On the facebook vems user page a member replied saying "its an easy fix, google flyback diode. Which I did and I cannot find anyone that has fixed this issue. I posted in another group, a VR6 specific group and several members posted saying their cars do it as well and the just start the car every time at Wide open throttle to prevent blowing the intake up. That seems like an absolutely terrible band aid.
Can someone please help me get this sorted out?
Thank you for your time.
-Matthew
Ive done a done of searching and have not been able to successfully find an answer.
The car is a obd2 MK3 VR6 12v golf with a Lugtronic PNP VEMS ecu.
The car runs, but I have an intake manifold that is split wide open that now needs to be repaired.
When I turn the key to the on position, but not cranking. The coil sparks, thus igniting any residual fuel. Intake valve was open when I turned the key and boom.
On the facebook vems user page a member replied saying "its an easy fix, google flyback diode. Which I did and I cannot find anyone that has fixed this issue. I posted in another group, a VR6 specific group and several members posted saying their cars do it as well and the just start the car every time at Wide open throttle to prevent blowing the intake up. That seems like an absolutely terrible band aid.
Can someone please help me get this sorted out?
Thank you for your time.
-Matthew
3
Wiring & Sensors / Re: What wiring diagram use
« Last post by GintsK on December 07, 2019, 01:58:50 pm »This unit is built by me years ago. Almost everything matches with Wiring. 5V. wide band.
18 pin connector:
1 not used (may be used for analogue input)
2, 3 analogue inputs 2 and 5 with pullups.
6 analogue input 6 with pullup
12 Exhaust cam Hall sensor.
14 Knock 1
15 Knock 2
16 analogue Ch 0 or 1 With no pullup.
17 GND from unit.
No speed input.
36 pin connector:
Injector outputs are A B C D E F
G and H are for IACV
Ignition outputs are that TO220 row: 0, 1, 4, 5, 6, 7
Outputs 2 and 3 are dedicated for VANOS pwm valves
Wideband is LSU 4.2
LCD DSUB9 pins did not matches with official.
What else?
18 pin connector:
1 not used (may be used for analogue input)
2, 3 analogue inputs 2 and 5 with pullups.
6 analogue input 6 with pullup
12 Exhaust cam Hall sensor.
14 Knock 1
15 Knock 2
16 analogue Ch 0 or 1 With no pullup.
17 GND from unit.
No speed input.
36 pin connector:
Injector outputs are A B C D E F
G and H are for IACV
Ignition outputs are that TO220 row: 0, 1, 4, 5, 6, 7
Outputs 2 and 3 are dedicated for VANOS pwm valves
Wideband is LSU 4.2
LCD DSUB9 pins did not matches with official.
What else?
4
Software / Re: How to force Idle valve to follow PPS ? Anytrim add
« Last post by Reynosa on November 27, 2019, 08:04:36 pm »What does putting the idle active threshold actually do btw?
5
Wiring & Sensors / What wiring diagram use
« Last post by huliits on November 23, 2019, 12:51:09 am »I bought used Vems with some wire harness that was instaled on BMW m54 engine.
I checked with vems v3.6 wiring diagram,and almost nothing was like in diagram.
The wideband sensor is in diffrent pins,5v doesnt have pins etc.
My question is,can I make a new harness like in v3.6 diagram or I need use some special one. I want to instal it on BWW m50 turbo engine.
I add some pictures,from my vems inside.
Sorry for my bad english,hope you understand me.
I checked with vems v3.6 wiring diagram,and almost nothing was like in diagram.
The wideband sensor is in diffrent pins,5v doesnt have pins etc.
My question is,can I make a new harness like in v3.6 diagram or I need use some special one. I want to instal it on BWW m50 turbo engine.
I add some pictures,from my vems inside.
Sorry for my bad english,hope you understand me.
6
Software / VemsDisplay issue (MAP Relative)
« Last post by Danny48 on November 21, 2019, 05:04:08 am »Hi all,
I don't know if it's the right place to report a little issue related to Vems Display...anyway...
Latest version (VemsDisplay-2019-03-14.apk)
Device: V3 Protocol: TriggerFrame
Just configuring an old smartphone with Android 6, will use it when laptop isn't connected.
I was configuring MAP Relative Round Gauge, I've tried to change the scale (minimum value was -160, just wanted to set it at -80, -100, something like that)
Basically, if you edit this number, minus is automatically removed (it just let you put positive numbers), so after the first time you changes it, you just have a positive map relative gauge (lowest possible value = 0)
The only option to revert this thing, seems it would be to hit on "restore virgin configuration" but I've already created a couple of screens with things I need and I'm not that happy to start again moving and resizing things.
Anybody has noticed it?
I don't know if it's the right place to report a little issue related to Vems Display...anyway...
Latest version (VemsDisplay-2019-03-14.apk)
Device: V3 Protocol: TriggerFrame
Just configuring an old smartphone with Android 6, will use it when laptop isn't connected.
I was configuring MAP Relative Round Gauge, I've tried to change the scale (minimum value was -160, just wanted to set it at -80, -100, something like that)
Basically, if you edit this number, minus is automatically removed (it just let you put positive numbers), so after the first time you changes it, you just have a positive map relative gauge (lowest possible value = 0)
The only option to revert this thing, seems it would be to hit on "restore virgin configuration" but I've already created a couple of screens with things I need and I'm not that happy to start again moving and resizing things.
Anybody has noticed it?
7
Wiring & Sensors / Re: strange TPS spike?
« Last post by gunni on November 17, 2019, 02:04:57 am »Scope the TPS voltage to attempt to identify if the noise is always at a certain frequency
8
General Discussion / Re: Hi best place to get econeseal conectors in uk
« Last post by gunni on November 17, 2019, 02:02:47 am »RS Components is also good
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General Discussion / Re: Hi best place to get econeseal conectors in uk
« Last post by jrussell on October 28, 2019, 09:30:22 pm »shop.vems.hu. Europe shipping shouldn't take long.
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General Discussion / Hi best place to get econeseal conectors in uk
« Last post by Strixas on October 28, 2019, 12:08:52 am »Hi best and quickest place to get conectors in uk male and female as bought bare board