I just rest my tcu and it's literally like driving a whole new car. Granted my car was driven for 7 years by a old grandma but still. But anyway just wanted to say it is possible

 

TCU?....Traction control unit?...you mean ECU?

how did you reset it?...just unplug the battery for 10-15 mins?

any mods to the car?

what kind of improvements did you see? better engine response? more power?

 

Well if you want to get technical it's the ecu, I meant the tranmkssion control unit. It controls the adaptive transmission. I wasn't able to get past certain mph, drove it hard in step tropic for a while it's now adapts. Takes 5 mins no unplugging

1: turn car on (not starting)
2: step on gas for 5 secs then turn of car and release pedal.

3: then wait 2 mins do not remove key

I have nm pipes forge diverter valve no tunes. But on automatic: it now shifts at 5-6k rpms when on the gas.

I'm seeing faster acceleration boost holds better. Most likely no torque gains technically. Sports mode is really like a new car

Sent from phone

 

Yes it makes a big difference depending on how the car was driven.

I did this on my E90 335i after doing the Alpina TCU flash, both combined transformed it at all levels. Now if only Alpina got their hands on a MINI...

 

I was looking for this! Just a question.

When 'turn car on', do you mean to put the key in and push start button once or twice without starting the engine?

 

On like battery on 1st position not 2nd which is the engine on