[Nicksoap]

Who's an expert? Drivetrain Malfunction Got a 2021 BMW ×540i, 20k miles, car is basically mint.

Just did some big upgrades to the car and need some help.
Upgraded the turbo
High pressure fuel pump
Upgraded Down pipe
Cold Air Intake
Charge pipe
Spark plugs
Full Custom Exhaust
JB4 tuner

After all the work I am getting a "drivetrain malfunction" error and the car is driving like ass.
Trying to run the codes but I am getting nothing. Any idea what the problem could be?

[bagd0003]

Originally Posted by Nicksoap

Who's an expert? Drivetrain Malfunction Got a 2021 BMW ×540i, 20k miles, car is basically mint.

Just did some big upgrades to the car and need some help.
Upgraded the turbo
High pressure fuel pump
Upgraded Down pipe
Cold Air Intake
Charge pipe
Spark plugs
Full Custom Exhaust
JB4 tuner

After all the work I am getting a "drivetrain malfunction" error and the car is driving like ass.
Trying to run the codes but I am getting nothing. Any idea what the problem could be?

If it's throwing a light, there must be an error. What are you scanning with? Those are some major updates. Did you do this work yourself? Maybe start by checking and making sure all the sensors and connections are plugged back in.

[eelnoraa]

These changes involve a lot of items. Many steps here can go wrong. Whoever did this should know how to do FA. Ask them to check for you, start by reading codes