[Autopro1962]

Here is a little info I'm not much of a Volvo tech but it could help.
When there is no fuel pressure, spark, or injector pulse, the first thing to test is the engine speed sensor. It is mounted in the top of the bell housing. Sensor resistance will be approximately 180 or 240 ohms, depending on the type of sensor installed. Sensor output should be more than 0.4 volts AC at cranking speed. OR
Engine will not start, has no spark. Has good fuel injector pulse. There is power going to the positive side of the coil.

Check for powers and ground at the ignition power stage, check terminals(Red/White wire) for power with ignition on.
Brown wire) for a good ground.(Blue wire) for power with ignition on.If all are good, unplug the connector and check for a square wave signal when cranking.You can check with volt meter good up and down voltage. If there is a good signal, replace the ignition power stage and check the ignition coil primary resistance. Specification is 0.6 - 1 ohm. Replace if out of specification.Ignition power stage is located in the left front of the engine compartment, near the battery.Good Luck