I don't know specifically re. the Volvo. All straight 4 cylinder engines use either 1,3,4,2 or 1,2,4,3; most use the former (1,3,4,2) Of course if the engine is not a straight "4", i.e. V4, or flat 4, this is meaningless.
153624
The firing order is 1 3 4 2 for the 4 cylinder engine
The firing order for 1996 Volvo 960 is 1, 5, 3, 6, 2, 4. This is for 3.0 Liter 6 cylinder engines.
if its a 4 cylinder....1,3,4,2 if its a 6....1,6,3,5,2,4
firing order is 1342 for a Volvo 960 (1996) 1342 is the firing order for a 4 cylinder which would be a 940- as for the 960, the order is 153624 where 1 is closest to the front of the car and 6 to the cabin. (for 2.9 liter motors in '96 960)
The firing order for the 1996 Volvo 960 3.0 L 6 cylinder engine is 1, 5, 3, 6, 2, 4. The number one cylinder is closest to the grill and the number 6 cylinder is closest to the firewall.
if its a b230f 2-1-4-3
4 cylinder petrol 1.3.4.2 6 cylinder diesel 1.5.3.6.2.4 In both cases no 1 cylinder is nearest the front of the vehicle.
1-3-4-2
1 - 3 - 4 - 2 The distributor rotor turns clockwise
1 3 4 2 with number 1 cylinder being at the radiator end of the engine.
12453 digram of the fire order on a c70 Volvo 1999