code P1320 IGN signal primary
having problems with r34 non turbo engine light keeps coming on mainly when cold or when revs over 5000rpm and starts to miss sometimes is also running rich
so far have changed coil packs (spit fires) plugs , ecu, airflow meter, cas
and has not really made much difference
has anyone had similar problem
next thing to try is tps or get injectors cleaned or fuel pressure reg
and info would be a great help thanks