Hi.
I tune on Vems C20LET engine. Someone who made wiring put on analog in channel #5 12v with 460ohm resistor. Is it possible that by this VEMS was burned?
you can always test with a 5v .. tap off tps wire and test it
is this not an option?
yes, you can burn a/d chip.
Replacment
http://shop.vems.hu/catalog/8channel-mcp3208-p-135.html