Not Startng on 1990 Volvo 740

1992 Volvo 740 will not start.There is spark.
New plug wires , new coil.
Regina type engine.

Asked by for the 1990 Volvo 740
Several possibilities:
Check DTC's, You may find a 2-1-4 code for the RPM Sensor. Replace it if you do.
Here is how you check the codeCode descriptions: s:
Code Descriptions: