Motronic 1.1/1.2/1.3 Compatible PCB

Re: Motronic 1.1/1.2/1.3 Compatible PCB#44246

By Raku - Wed Jul 15, 2020 2:31 am

- Wed Jul 15, 2020 2:31 am #44246

then looks like you have some short circuit between 5v and ground. check your soldering and see any soldering bridges between the pads.

Re: Motronic 1.1/1.2/1.3 Compatible PCB#44249

By Raku - Wed Jul 15, 2020 12:07 pm

- Wed Jul 15, 2020 12:07 pm #44249

do you have stock tps still connected?

Re: Motronic 1.1/1.2/1.3 Compatible PCB#44252

By janithdg - Wed Jul 15, 2020 5:00 pm

- Wed Jul 15, 2020 5:00 pm #44252

is the Cylinder ID disconnected?

Re: Motronic 1.1/1.2/1.3 Compatible PCB#44257

By dannesjoman - Wed Jul 15, 2020 8:35 pm

- Wed Jul 15, 2020 8:35 pm #44257

No i didnt...... thougt i didnt need to, i just wanted to se if it worked

Re: Motronic 1.1/1.2/1.3 Compatible PCB#44261

By Raku - Thu Jul 16, 2020 1:01 am

- Thu Jul 16, 2020 1:01 am #44261

if you have stock tps connected itll make 5v and ground short. disconnect stock tps or rewire the m50 tps

Re: Motronic 1.1/1.2/1.3 Compatible PCB#44327

By dannesjoman - Mon Jul 20, 2020 11:31 am

- Mon Jul 20, 2020 11:31 am #44327

Disconnected the tps, id sensor and the maf.
Now the ecu gets power! But still q1 gets very hot.

Edit: removed q1 now everyrhing works, injectors opening, everything exepts spark, proberly burnt q1 when in the tune the settings was set to going high on coil output..

Re: Motronic 1.1/1.2/1.3 Compatible PCB#45141

By sk8 - Tue Sep 01, 2020 2:40 am

- Tue Sep 01, 2020 2:40 am #45141

I just finished building the speeduino and tried plugging it into the car for the first time. Seems to work fine with ignition key off, once I turned the ignition key on the IGBT on Q1 started smoking. I read earlier that this could be caused by bad tps wiring, but I had the tps unplugged. Does anyone have any suggestions on how I can track down what's causing this problem?

Re: Motronic 1.1/1.2/1.3 Compatible PCB#45142

By Raku - Tue Sep 01, 2020 2:49 am

- Tue Sep 01, 2020 2:49 am #45142

q1 is coil driver.make sure you have base tune loaded up before plugging in to the car. and make sure spark output trigger is set to going low.

Re: Motronic 1.1/1.2/1.3 Compatible PCB#45218

By VWguyBruce - Thu Sep 03, 2020 8:52 pm

- Thu Sep 03, 2020 8:52 pm #45218

Genius.

Thank You.

Re: Motronic 1.1/1.2/1.3 Compatible PCB#45250

By sk8 - Sun Sep 06, 2020 3:02 pm

- Sun Sep 06, 2020 3:02 pm #45250

Raku wrote: ↑Tue Sep 01, 2020 2:49 am q1 is coil driver.make sure you have base tune loaded up before plugging in to the car. and make sure spark output trigger is set to going low.

That fixed my issue, it was configured to going high. I was able to crank the car over after changing that setting. A new issue I have is it doesn't seem to read my wideband sensor, I have it plugged in to the pin on the board marked as o2. I checked voltage at this pin from my o2 sensor and everything looks correct. Do you know how I can troubleshoot this?

EDIT: The issue was the ground. I had the o2 sensor hooked up on the bench and the board not plugged into my car, so the o2 sensor and speeduino were not sharing the same ground.