To time yours you do not need a scan tool, but to verify it you do. Also have to know its not a normal timing thing with degrees and a light or anything like that but the computer figures it all out on its own and you just need to be in a tolerance.
To time it, pointing straight up, or use the timing mark on the timing cover. The IP mounting flange turns down right where the timing mark (wedge that sticks out of timing cover) is pointed. The IP flange should be just a bit, like 2-3 millimeters to the drivers side of where the timing mark is pointed. Then you can run the KOKO, key on key off, procedure to initiate the TDCO learn function of the PCM.
That procedure out of the timing sticky is, and only an option for OBD2 PCMs
ECT must be at operating temperature ~170*F
1.With Key OFF, press fuel pedal to floor and hold it there
2.Key ON 45 seconds
3.Key OFF
4.Release pedal
5.Wait 30 seconds
6.Turn key and start engine after glow cycle
As the engine fires up, engine rpm may increase, engine may hesitate and stumble as PCM determines newly-adjusted IP position, then will smooth out to normal idle after new TDCO value is calculated
If it works and you do not get a SES light/code then its good to go. Having a code reader at least would be helpful, because if you have a light/code then you could verify its for DTC P1214 Injection Pump Timing Offset. If it is, delete it, adjust the pump a tad back towards the timing mark and repeat the KOKO procedure. Thats not the precision method, but will run just fine. A lot of people like to know its around -1.5 or at least a negative value, since factory timing is -0.25 to -0.75 TDCO.
Attached a pic of that timing mark and IP flange position, although difficult to see with the dual thermostat housing on your truck. The edge line of the IP flange needs to be just a couple millimeters towards drivers side of timing wedge tip.
