[Dilber]

I've been running JB4 for about 2 years now and haven't had any success reading or clearing codes (also my remote start didn't work either). So I decided I wanted to switch to Bootmod3.

After getting my DME bench unlocked, I installed the ECU back in thinking that I'll be able to run JB4 still. I reconnected my battery, saw a "Drivetrain failure" error, and couldn't start the car.
So... might as well install Bootmod3 now to clear whatever codes there were and run the tunes I wanted, right?

While I had the battery disconnected, I removed my JB4 unit and then replugged the two connectors that I had removed originally.
I installed first the stock tune, cleared my codes and still had the same error. I've included a picture of all my codes but here they are as a list too:

• 123701 - Electrical wastegate, position sensor, electrical: Short circuit to positive
• 119113 - Rail pressure sensor: short circuit to plus
• 191004 - tank vent valve, control: line break
• CD9001 - LIN, communication (charge air coolant pump): missing
• 12B103 - Heating Lambdasonde1 bank1, control: line break
• 164020 - intake camshaft sensor, electrical: short circuit to positive
• 164030 - exhaust camshaft sensor, electrical: Short circuit to positive
• 102A58 - intake air temperature sensor after air filter: Substitute reaction

Some of these might be from mods that I've done.

I have disconnected the battery in the engine bay before and had sparks fly when trying to reconnect it for a wipe motor replacement job I did. After that, I had a yellow "PARKING" light show up nonstop on my dash, but my parking brake still activated with the press of the button.
I also have a catless downpipe and an MST intake.

From the other forum posts that I've read on this topic, there were a lot of instances of forgetting to disconnect the battery or other configuration issues. My main concern was that I saw this error right from the start after the DME unlock.

My car was built 12/2019.

I'm not sure what I'm doing wrong here or where to go from here. Any help is appreciated!

[Dilber]

I feel dumb. I figured out the issue. Plug number 3 on the ECU wasn’t strapped down all the way.

I reverted my JB4 back to map 0 and then reflashed my ECU to Stage 2 with Bootmod. Everything works now (even if CEL shows up mid driving &#128064