A3 Jetta’s and B4 Passat’s have 2-socketed 32plcc or 28 pin Dip chips, can I change these myself?
Yes, you can request your old chips back and install new chips in these car’s sockets. I recommend you keep your old chips, so if you sell your car you can return it to stock. You can also resell the chips this way. (I’ll get banged for this from other chip tuners but that’s that!) Just send me an email for advice and guidance on this topic. Do not spray cleaners on your circuit board unless you know what you are doing! I’ve seen oxidation and corrosion on circuit boards caused by caustic cleaners/etcher solutions.
