coil # two not working on 1995 Volvo 960

I hade coil # 2 replace also change injector # 2 replace harness and still piston # 2 not working any suggestions on what to check next . It has power but it doesn't make the cut.

Asked by for the 1995 Volvo 960
Check these, ignition fire, injector pulse, compression and vacuum leak(s). Got to be one or the other!
2 more answers
seek diag and est instead of throwing parts at it
canyou confirm that it has spark at that plug? also you may want to check the compression in that cylinder..