My car shuts off when I come to a stop
I have a 99 Audi A4 Quattro 1.8 turbo. Just
changed the catalytic converter the ecu o2
sensor spark plugs and it still shuts off and
idle rough... Just had it diagnosed and they
say my main engine harness is bad, could
that be the reason why it shuts off or I
should have them check the cat if it's still
plugged