Hellen 121 ME7 for VAG PnP ECU
Re: Hellen 121 ME7 for VAG PnP ECU
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..
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Re: Hellen 121 ME7 for VAG PnP ECU
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
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Re: Hellen 121 ME7 for VAG PnP ECU
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.
Re: Hellen 121 ME7 for VAG PnP ECU
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!
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Re: Hellen 121 ME7 for VAG PnP ECU
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.
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Re: Hellen 121 ME7 for VAG PnP ECU
Awesome! Great to hear and I look forward to it!
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Re: Hellen 121 ME7 for VAG PnP ECU
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
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
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Re: Hellen 121 ME7 for VAG PnP ECU
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
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
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Re: Hellen 121 ME7 for VAG PnP ECU
That's a great image!
Hold on, is it 4.2? All of these 121 pins are 4.2 or some are 4.9?
Hold on, is it 4.2? All of these 121 pins are 4.2 or some are 4.9?
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Re: Hellen 121 ME7 for VAG PnP ECU
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.
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Re: Hellen 121 ME7 for VAG PnP ECU
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 wrote: ↑Tue Mar 09, 2021 12:16 amThey 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.
Re: Hellen 121 ME7 for VAG PnP ECU
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.
Re: Hellen 121 ME7 for VAG PnP ECU
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.
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Re: Hellen 121 ME7 for VAG PnP ECU
Ah right - forgot about the CJ110. But either way, it's probably the same pinout on the ECU.
Re: Hellen 121 ME7 for VAG PnP ECU
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:
AUQ/ARX Outputs:
===================================================================================================================
Also there is BAM engine code that has EGT sensor on PIN 61
BAM Inputs:
BAM Outputs:
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:
AUQ/ARX Outputs:
===================================================================================================================
Also there is BAM engine code that has EGT sensor on PIN 61
BAM Inputs:
BAM Outputs:
Re: Hellen 121 ME7 for VAG PnP ECU
here i'm sharing the ecu pin out and wiring digram for 1.8t AWT
Is this board supporting DBW and wideband o2 sensor
Is this board supporting DBW and wideband o2 sensor
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Re: Hellen 121 ME7 for VAG PnP ECU
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.
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Re: Hellen 121 ME7 for VAG PnP ECU
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
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Re: Hellen 121 ME7 for VAG PnP ECU
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
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
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Re: Hellen 121 ME7 for VAG PnP ECU
Totally not a render, it's just a nice photograph. @kon keeps one board, three or four boards are available.
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Re: Hellen 121 ME7 for VAG PnP ECU
Looks like we might be able to support Tuareg?! I shall grab some wiring schematics.
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Re: Hellen 121 ME7 for VAG PnP ECU
Need help validating the pinout https://rusefi.com/docs/pinouts/hellen/hellen121vag/
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Re: Hellen 121 ME7 for VAG PnP ECU
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)
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)
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Re: Hellen 121 ME7 for VAG PnP ECU
Does anyone know MAF calibration for 2000 1.8t Audi TT?
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Re: Hellen 121 ME7 for VAG PnP ECU
Hi, yes, i have it.
AUQ 63mm MAF or AMK/BAM 76mm MAF?
AUQ 63mm MAF or AMK/BAM 76mm MAF?
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Re: Hellen 121 ME7 for VAG PnP ECU
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Re: Hellen 121 ME7 for VAG PnP ECU
Available on eBay https://www.ebay.com/itm/334048095704
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Re: Hellen 121 ME7 for VAG PnP ECU
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!
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Re: Hellen 121 ME7 for VAG PnP ECU
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?
I wonder if we have an ECU for Ferrari F430 here? Maybe Maserati Granturismo?
Does anyone have any Ferrari F136 engine wiring diagrams?
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Re: Hellen 121 ME7 for VAG PnP ECU
Let's welcome @thmotorsport to VAG fun!
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