If you or anybody else has a question about working on or
troubleshooting your Volvo, go to Turbobricks.

http://forums.turbobricks.com/forumdisplay.php?s=9c024bb6896c0a6c58a0185227bbc56
1&f=12

Have you established if:
1) the ignition system is creating a spark at the plugs
and
2) whether or not fuel is getting into the cylinders?

Test (1) by using a spark spark plug. Ground it (I sometimes use a
jumpoer cable to establish a good ground) and connect a plug wire from
any cylinder (or the coil lead) to it. Have someone crank the moor
while you watch for a good spark in the plug's gap.

Test (2) by cranking for a bit, then remove the plugs and check for
gas on them.

Once you get that far you will know where to look. Otherwise you can
spend teo weeks hunting down an ignition problem when it could be a
bad fuel pump, or vice versa. etc...

Did I mention Air mass Meter?

The car does have OBD- did you try to read the codes?

            __  __
    Randy & \ \/ /alerie's
             \__/olvos
'90 245 Estate  -  '93 965 Estate
  "Shelby"     &      "Kate"