Volvo Repair: Volvo 1997 S 90 crank but no start no spark, no injector pulse, new rpm sensor, crank angle sensor, master mechanic

Question
I am an ASE master mechanic with many years experience.  This is a 1997 S90 volvo with 75,000 miles.  Pin point test, all voltages correct. Tried different engine computer but did not solve the problem. Will start after long cranking times.  It has no spark or injector pulse.  I have put in a new  rpm sensor.  What else could be causing this problem?  Could it be the coolant sensor?  The sensor that is in the car now tested fine.

Answer
Hi ....You sound smarter than I am on s90's.
       I suspect that a rpm sensor is a crank angle sensor?...if not.. look there?
           You can place your exact needs onto internet and blow your mind with the amount info...try this..
         "volvo 1997 s90 no start problem"
 LOL I bumped into your ad in other Volvo website...looking for info...look see for yourself...
...also...resistors in spark circuits/individual coils stc.
      componant regulating degree of spark..
              Keep me posted,

                           Bilbo