[Mixhali]

Hi guys,

This all started out as a misfire problem. My mechanic suggested changing two of the injectors as a start as they are all index 5. Overall he said to change all but I asked just to start with the problematic cylinders. After he did that he ended up with a 30bd error and a rough but drivable car. His research indicated that the ECU was fried for some reason. Not convinced, I took the car and have attempted a few things myself to get rid of the code. However things have gone from bad to worse.

After doing my own research it pointed to the injector driver ic's ATIC94D1 x 2. I ordered a couple online and swapped them out. (I can use a soldering iron!) after putting the ECU back in the car it threw a tonne of codes and would not start. Cranked fine but no kick. After some troubleshooting, checking everything again and again I started probing with a multimeter. I noticed the main DME relay was not getting a ground signal from the DME. I decided to ground it and see if we get an engine start. The engine started however was not happy. running very very rough, would not respond to throttle input and basically was just turning over.

The collection of codes im getting are:
3100 Low Boost
2CF3 Throttle valve 2, throttle valve potentiometer 1 and 2
2D4C Throttle valve 2, throttle valve potentiometer 1, electrical
2D2D Absolute-pressure sensor 2, intake pipe, electrical:
2A81 Intake variable camshaft timing control, activation 2
0000 ??
0000 ??
2A86 Exhaust VANOS, activation 2
2D23 Air volume meter 2, electrical
30CB Blow-off valve 2 , actuation
2F07 Intake air temperature sensor 2, electrical:
00F1 DME: DMS Digital Motor Electronics: fault stored
262F ??
3BD1 DSC Issue

Apologies i should have mentioned i have a jb4 hooked up and unfortunately it doesn't resolve the codes to meaningful text. I have had to look them up myself so hopefully they are correct.I expect that most of these codes are the consequence of the root cause.

At the moment i suspect an electrical fault, like a ground or something as gone missing, but as i said i have checked all connections. I might have purchased dodgy Ic's from aliexpress. I may swap back the original ones tomorrow.

By the way i always disconnect the battery when working on anything related to the DME