Hellen 121 ME7 for VAG PnP ECU

Hardware inside and outside of the ECU
Tire guy
Posts: 12
Joined: Mon Mar 30, 2020 2:02 am

Re: Hellen 121 ME7 for VAG PnP ECU

Post by Tire guy »

here's the related diagram. It lacks info which and whether the switches are momentary or toggle and my small brain does not comprehend how exactly it works, but maybe some brighter minds here have an idea..
Attachments
audi1.8CruiseCntrDiagram.jpg
audi1.8CruiseCntrDiagram.jpg (143.32 KiB) Viewed 19418 times
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

now it's way easier for me to use. I am sorry I've barked but those details like exact pin numbers are making my life way easier
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
deaner
Posts: 56
Joined: Sat Jan 09, 2021 2:02 am

Re: Hellen 121 ME7 for VAG PnP ECU

Post by deaner »

AndreyB wrote:
Thu Feb 04, 2021 7:05 pm
now it's way easier for me to use. I am sorry I've barked but those details like exact pin numbers are making my life way easier
It's all good. At first I was like, it's in thebsupplied pinout dude! Then reeled it in and reminded myself that you're doing the work and were appreciative of it. 🍻 Lemme know how I can help.
deaner
Posts: 56
Joined: Sat Jan 09, 2021 2:02 am

Re: Hellen 121 ME7 for VAG PnP ECU

Post by deaner »

Anything new on these bad boys? I've just recently got a 1.8t running on a Proteus. Would love to tinker one of these when available! 🍻
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

deaner wrote:
Mon Mar 08, 2021 4:09 pm
Anything new on these bad boys? I've just recently got a 1.8t running on a Proteus. Would love to tinker one of these when available! 🍻
We are probably at least a month away from ordering a batch of Hellen 121, at the moment troubleshooting Hellen72 which has a lot shared with this one.
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
deaner
Posts: 56
Joined: Sat Jan 09, 2021 2:02 am

Re: Hellen 121 ME7 for VAG PnP ECU

Post by deaner »

Awesome! Great to hear and I look forward to it!
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

I am super confused about wideband pinout, looking for help.

Looks like heater low side control is ECU pin 5. Looks like ECU pins 70 and 71 are doing something not sure what.

Looks like heater +12 power does not go to ECU but goes into harness towards one of the relays.

Looks like I am missing two more wires and confused about which ECU wires goes into what WBO pin?

https://github.com/rusefi/rusefi/wiki/WBO has our universal WBO info including

Image
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
deaner
Posts: 56
Joined: Sat Jan 09, 2021 2:02 am

Re: Hellen 121 ME7 for VAG PnP ECU

Post by deaner »

Does this help?
1 - green - ecu pin 70
2 - black - ecu pin 71
3 - blue/red - fuel relay power
4 - white - ecu pin 5
5 - grey/white - ecu pin 51
6 - grey/red - ecu pin 52
Attachments
LSU42toME75Connections_zpsf89f4226.png
LSU42toME75Connections_zpsf89f4226.png (30.22 KiB) Viewed 19202 times
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

That's a great image!

Hold on, is it 4.2? All of these 121 pins are 4.2 or some are 4.9?
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
deaner
Posts: 56
Joined: Sat Jan 09, 2021 2:02 am

Re: Hellen 121 ME7 for VAG PnP ECU

Post by deaner »

AndreyB wrote:
Mon Mar 08, 2021 11:35 pm
That's a great image!

Hold on, is it 4.2? All of these 121 pins are 4.2 or some are 4.9?
They can vary. Me7.5 is 4.2 while me7.1 is 4.9. All me7.5 1.8ts are 4.2, while the 3.2 VR6 is 4.9, though both sharing the same 121 pin connector. Pretty sure the pinouts are the same though. I'll check the ecu pinouts between me7.5 and me7.1 when I get home later. I'm only familiar with the 3.2 vr6 and 1.8ts, so I dont know about other engines that use 121p connectors.
mck1117
running engine in first post
running engine in first post
Posts: 1493
Joined: Mon Jan 30, 2017 2:05 am
Location: Seattle-ish

Re: Hellen 121 ME7 for VAG PnP ECU

Post by mck1117 »

deaner wrote:
Tue Mar 09, 2021 12:16 am
They can vary. Me7.5 is 4.2 while me7.1 is 4.9. All me7.5 1.8ts are 4.2, while the 3.2 VR6 is 4.9, though both sharing the same 121 pin connector. Pretty sure the pinouts are the same though. I'll check the ecu pinouts between me7.5 and me7.1 when I get home later. I'm only familiar with the 3.2 vr6 and 1.8ts, so I dont know about other engines that use 121p connectors.
The pinout almost HAS to be the same - the ECU is probably a Bosch CJ125 wideband interface chip inside, which supports both sensors with (afair) a single resistor change.
deaner
Posts: 56
Joined: Sat Jan 09, 2021 2:02 am

Re: Hellen 121 ME7 for VAG PnP ECU

Post by deaner »

mck1117 wrote:
Tue Mar 09, 2021 1:39 am

The pinout almost HAS to be the same - the ECU is probably a Bosch CJ125 wideband interface chip inside, which supports both sensors with (afair) a single resistor change.
I generally try not to assume anything lol. Checked the pinout for my other pnp standalone ecu that works with both my 1.8t and my 3.2(bank 1), WBO2 ECU pinout is the same.
User avatar
MHTSOS
Posts: 74
Joined: Sun Jun 02, 2019 6:46 pm
Github Username: MHTSOSVOODOO
Slack: Dimitri C

Re: Hellen 121 ME7 for VAG PnP ECU

Post by MHTSOS »

I had once repaired an ECU from a 1.8t with an LSU 4.2 and it used CJ110 ic that is the same thing as CJ125 but only supports LSU4.2. So it seems they don't all use CJ125 for both types of sensors.

Στάλθηκε από το CLT-L09 μου χρησιμοποιώντας Tapatalk

mck1117
running engine in first post
running engine in first post
Posts: 1493
Joined: Mon Jan 30, 2017 2:05 am
Location: Seattle-ish

Re: Hellen 121 ME7 for VAG PnP ECU

Post by mck1117 »

MHTSOS wrote:
Wed Mar 10, 2021 3:27 pm
I had once repaired an ECU from a 1.8t with an LSU 4.2 and it used CJ110 ic that is the same thing as CJ125 but only supports LSU4.2. So it seems they don't all use CJ125 for both types of sensors.

Στάλθηκε από το CLT-L09 μου χρησιμοποιώντας Tapatalk
Ah right - forgot about the CJ110. But either way, it's probably the same pinout on the ECU.
nyl
Posts: 12
Joined: Thu Apr 15, 2021 10:36 pm
Location: Romania
Slack: NYL

Re: Hellen 121 ME7 for VAG PnP ECU

Post by nyl »

Hey,
thanks AndreyB for pointing this thread out

I will be running RusEFI on a golf mk2 with 1.8T engine swap 1.8T AUQ, and I also building a skoda octavia with 1.8t ARX but with Ignitron ECU ME 7.5 Plugnplay (both engine share same pinout from what i see)

You can find all pinouts based on ENGINE codes inside Ignitron setup wizard

AUQ/ARX Inputs:
image.png
image.png (34.82 KiB) Viewed 18712 times
AUQ/ARX Outputs:
image.png
image.png (30.51 KiB) Viewed 18712 times
===================================================================================================================
Also there is BAM engine code that has EGT sensor on PIN 61

BAM Inputs:
image.png
image.png (35.12 KiB) Viewed 18712 times
BAM Outputs:
image.png
image.png (30.73 KiB) Viewed 18712 times
Mohammed
Posts: 5
Joined: Thu Apr 22, 2021 3:08 am

Re: Hellen 121 ME7 for VAG PnP ECU

Post by Mohammed »

here i'm sharing the ecu pin out and wiring digram for 1.8t AWT
Is this board supporting DBW and wideband o2 sensor
Attachments
AWT.pdf
(30.97 KiB) Downloaded 265 times
AWT ecu pinout.pdf
(44.38 KiB) Downloaded 303 times
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

Mohammed wrote:
Thu Apr 22, 2021 8:23 pm
here i'm sharing the ecu pin out and wiring digram for 1.8t AWT
Is this board supporting DBW and wideband o2 sensor
I really have to ask you to invest more of your time and start doing more research please. In my opinion there are enough relevant links here for you to be able to answer this question on your own.
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

image.png
image.png (71.52 KiB) Viewed 18528 times
Just placed an order for rev A.

Five boards would go to @kon directly. @kon does not have a VAG, @kon would be making an adapter to run his e30 because why not right?

I am happy to sell three boards to anyone interested. Board + soldered MAX9926 + unsoldered 121 pin connector $149 shipped in US.

Five boards are in LA!

One board stays in LA
One board went to Canada
Two boards went to Russia
Last board can probably go somewhere - https://github.com/rusefi/rusefi/wiki/HOWTO-Test-New-ECU-Design
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

https://github.com/rusefi/rusefi/wiki/Hellen121VAG has the link to schematics and all source files including JLCPBC fabrication files if anyone is interested to order another batch.

Next step: filling up connector mapping info file for interactive pinout to get generated. Anyone interested to help?

See https://github.com/rusefi/hellen121vag/issues/26
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

Totally not a render, it's just a nice photograph. @kon keeps one board, three or four boards are available.
Attachments
hellen-vag-not-a-render.jpg
hellen-vag-not-a-render.jpg (443.84 KiB) Viewed 18239 times
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

Looks like we might be able to support Tuareg?! I shall grab some wiring schematics.
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

It works!

But a list of mods is required for rev A to be happy (this post might get updated)
1) some not all of R2/R3/R8/R9 https://github.com/rusefi/hellen121vag/issues/35
2) one of F1/F2 https://github.com/rusefi/hellen121vag/issues/40
3) Q313 https://github.com/rusefi/hellen121vag/issues/39
4) nasty CLT IAT fix https://github.com/rusefi/hellen121vag/issues/43
5) WBO mosfet https://github.com/rusefi/hellen121vag/issues/42
6) op-amps upgrade (most importantly U107 and U108 tps1/2 are on separate opamp chips)


Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

Does anyone know MAF calibration for 2000 1.8t Audi TT?
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
aiancu
Posts: 1
Joined: Sun Jun 13, 2021 3:08 pm

Re: Hellen 121 ME7 for VAG PnP ECU

Post by aiancu »

Hi, yes, i have it.
AUQ 63mm MAF or AMK/BAM 76mm MAF?
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

aiancu wrote:
Sun Jun 13, 2021 3:09 pm
Hi, yes, i have it.
https://rusefi.com/forum/viewtopic.php?f=2&t=2040 says APX
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

TS project now has buttons for separate defaults. Surprisingly rusEFI did not support 1_4_3_6_2_5 firing order until now, the one VAG v6 uses!
image.png
image.png (26.77 KiB) Viewed 16518 times
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

0 261 208 592
I wonder if we have an ECU for Ferrari F430 here? Maybe Maserati Granturismo?

Does anyone have any Ferrari F136 engine wiring diagrams?
image.png
image.png (284.19 KiB) Viewed 16464 times
image.png
image.png (488.23 KiB) Viewed 16464 times
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
User avatar
AndreyB
Site Admin
Posts: 14292
Joined: Wed Aug 28, 2013 1:28 am
Location: Jersey City
Github Username: rusefillc
Slack: Andrey B

Re: Hellen 121 ME7 for VAG PnP ECU

Post by AndreyB »

Let's welcome @thmotorsport to VAG fun!
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

Always looking for C/C++/Java/PHP developers! Please help us see https://rusefi.com/s/howtocontribute
Post Reply