on a 2013 vw tiguan, ANYONE EVER HEAR OF A BAD COMPUTER?!,
giving false, fake check engine light notifications ?,
Do you mean ECU ( bad computer ) ?
You must use VCDS for scanning your vehicle. (Clear all your error codes, drive for 1-2 days your car, then make another scan and see what is causing these lights to be on )
Why do you think is bad ECU and it is giving you fake light notification ?
The ECU never fails , but the most common problem would be "doesn't run."