missing bad

  1. S

    help 87 mk3 running very bad all the sudden went up hill now atleast 1 cyl down?HELP

    was driving up a big hill wen all the sudden car started missing got to the top and it went away the next day same hill car started missing again but it didnt go away now it seems to b running on 5 cylinders atleast the only code it shows is 12 rpm signal pulse (crank angle) could this be y...