Battery disconnection and ECU relationship

[VWVW 1]

Hello :wave:

 

Just wondered...How many corrado owners go about teaching your corrado to accept new learning sequence for the ECU after you have reconnected the car battery.

 

I ve read that once you reconnect the car battery the ECU will go into " default basic running mode" until you take it out for a spin in a certain driving sequence to teach the ECU "new correct running mode" all to be done within the first 10 minute of reconnecting the battery.

[Jon_vr6 1]

Never have done on mine heard about it though

[dr_mat 0]

You heard correctly. If there's nothing majorly wrong with your engine it'll probably just run a bit rich for a while until it adapts properly.

There's a thread out there with a description of the training sequence though, or maybe it's on the wiki, or something..

[VWVW 1]

Following on. Sorry if its sound obvious but what happens to cars that has had a ECU remap lets say. Does that get reset after battery disconnection ? and require a remap again. ? Or is that in the ROM part of the ecu that doesnt get overwritten ?

[RW1 0]

The Maps are preprogrammed, just the integration with sensors is lost as it itsn't retained in memory if power is lost.

 

Its all in the knowledge base how its done for the engine ECU set-up. http://wiki.the-corrado.net/vr6_ecu_res ... edure.html

 

And if you have an Autobox, that needs setting up too if the battery is disconnected. Like this...........

 

Using VCDS:

With ignition on, engine not started.

Select the Auto Trans 02.

Select 04 Basic Settings. Key 000 in display group.

Press the acclerator to the kick-down position and hold for 3 seconds.

Release the accelerator and exit VCDS neatly all the way out to the start screen.

 

.

[VWVW 1]

Thanks for the reply guys...Iam asking cos I ve disconnected my battery recently to clean up the battery side of the engine bay and Iam ready to reconnect the battery again :D