Recent posts

#81

Wiring & Sensors / Terminal part #

Last post by Russ - February 02, 2022, 06:28:25 PM

Hello, does any one know the part number for the wire terminals in the 18/36 pin ECU connectors?
Thx

#82

Projects & Installs / VW MK1 2.0 16V Racecar

Last post by Russ - February 02, 2022, 05:20:30 PM

Hello
I have a MK! Golf with a 2.0 16V racing car which we run in endurance racing series in the California, Oregon and Washington states. At the moment it is on VW ABF management. I am using an ABF intake manifold, Piper rally grind cams and Techtonics Tuning 4 into 1 exhaust manifold. 
I obtained a used VEMS V3, serial # 4826, from an autowrecker in Vancouver which had previously been used on an Audi A4 1.8T. So I want to see if I can get the VEMS to work better than the ABF.
It did not have a cam position sensor, knock sensor or idle control valve and I want to add  these to the set up. First issue is locating the correct electrical terminals to add wiring to the 18 & 36 pin ECU connectors. Does anyone know the part number for these teminals?
Any advice help would be apprecicated greatly.
Russ

#83

Software / Re: Strain gauge shifter wirin...

Last post by Kamuto - January 24, 2022, 11:57:25 AM

Hi has anyone set up a strain gauge using the v3 standalone. Anyone have any info or wiring diagram on how. Which wires on the harness they used. The car is a vr6 turbo with a plug and play harness. I know i need to add wire to the harness just don't want to make an error. Thank you

any analog input, and to properly use it it would be nice to have newer fw.. vems itself never released p&p vr6 harness so you need to check your pinout if you have one.

#84

Software / Strain gauge shifter wiring

Last post by Ny_a560 - January 17, 2022, 12:46:18 AM

Hi has anyone set up a strain gauge using the v3 standalone. Anyone have any info or wiring diagram on how. Which wires on the harness they used. The car is a vr6 turbo with a plug and play harness. I know i need to add wire to the harness just don't want to make an error. Thank you

#85

Triggering / Re: Mini MPi sectrig problem

Last post by Kamuto - January 11, 2022, 06:41:28 AM

Hi, i have problem with sectric on Mini Mpi, it is stock VR sensor and ecu dont accept this signal. It should be that voltage on the peak is too low? Or shape of curve is incorrect? The sensor is in the groove in the lobe of camshaft.

Thank You for answer

maybe your ecu is configured with hall trigger hw for secondary trigger?

No, ecu is configured correct. Or can i verify it somehow?

photo: https://ibb.co/M7WDYy2

on your paper it writes sec trigger hall, and you are using VR sensor for that, so that's your answer..

Really? i see Sec trig VR, where is the problem?

you are right.. my bad

#86

Modifications and Repairs / Intermittent `Bad´ Starting

Last post by Super fx - January 06, 2022, 10:21:40 PM

Hello,
Happy New Year to everyone,
I´m hoping someone can help me with some inside knowledge of vems.
I have a V3.3 (bought from Peep as a pnp as i really didn´t want to be going into the nittygritty diy of ecu´s at the mo) installed on a Porsche 944 turbo. It starts, idles and runs great on a good start BUT on about 50% of starts it is BAD and has a light misfire (like a vac leak or weak spark), almost dies on accel (like a carb accel pump not working) and has `hard´ backfires on rapid decels (like a bad vac leak).
Once started in this state it will not recover unless restarted (ecu reset ?) and is immediately obvious by the popping sounds at idle in the exhaust.
At idle (800rpm) The 02 is approx .05 higher than a good start (i presume unburnt fuel?) and very unstable as are the rpms & 02 with tps held at 4%.
Turn it off & on again and it will run perfect - 02 @ 99 or wherever it is set, no misfire, backfire etc.
I´ve tried all external troubleshooting i can find & think of, and am now wondering if its possible for Vems to initialise and latch in a state that can cause these issues until the power is cycled.
I was running WS with new leads, but have put the stock coil n cap/leads back in, tried 3 new ws coils, deactivated and plugged the IAC, 2 new sets of plugs (resistor & non), checked for vac leaks, swapped inj, ign Channels & pins, jiggled harness´s conned out connectors, checked tps sweep, disabled inj cha´s during idle but cant find anything wrong.
Trigger logs look good, timing strobe looks good steady n solid also.
Cylinder head recon & turbo were replaced at the same time as installing vems.
Next thing i´m going to try is reinstalling the Motronic ecu but i was hoping for some ideas before doing that.
I´m not sure how to add a logfile...
Any advice appreciated,
Thanks !

#87

Triggering / Re: Mini MPi sectrig problem

Last post by FullGasCZ - January 04, 2022, 07:42:51 AM

Hi, i have problem with sectric on Mini Mpi, it is stock VR sensor and ecu dont accept this signal. It should be that voltage on the peak is too low? Or shape of curve is incorrect? The sensor is in the groove in the lobe of camshaft.

Thank You for answer

maybe your ecu is configured with hall trigger hw for secondary trigger?

No, ecu is configured correct. Or can i verify it somehow?

photo: https://ibb.co/M7WDYy2

on your paper it writes sec trigger hall, and you are using VR sensor for that, so that's your answer..

Really? i see Sec trig VR, where is the problem?

#88

Triggering / Re: Mini MPi sectrig problem

Last post by Kamuto - December 30, 2021, 06:42:10 AM

Hi, i have problem with sectric on Mini Mpi, it is stock VR sensor and ecu dont accept this signal. It should be that voltage on the peak is too low? Or shape of curve is incorrect? The sensor is in the groove in the lobe of camshaft.

Thank You for answer

maybe your ecu is configured with hall trigger hw for secondary trigger?

No, ecu is configured correct. Or can i verify it somehow?

photo: https://ibb.co/M7WDYy2

on your paper it writes sec trigger hall, and you are using VR sensor for that, so that's your answer..

#89

Projects & Installs / Re: Volvo S40 B4194T

Last post by Andy P - December 22, 2021, 11:33:24 PM

Hey, only a few years delayed response but there have been a few S40's on these boards running VEMS (myself included, another user Tcode as well).

That was back in 2008 though!!

#90

Triggering / Re: Mini MPi sectrig problem

Last post by FullGasCZ - December 22, 2021, 07:34:49 PM

Hi, i have problem with sectric on Mini Mpi, it is stock VR sensor and ecu dont accept this signal. It should be that voltage on the peak is too low? Or shape of curve is incorrect? The sensor is in the groove in the lobe of camshaft.

Thank You for answer

maybe your ecu is configured with hall trigger hw for secondary trigger?

No, ecu is configured correct. Or can i verify it somehow?

photo: https://ibb.co/M7WDYy2