The type of sensor u have is a 1g CAS. It provides both the crank and cam signal. Search how to test cas and you will come across a few threads on how to test.
If u installed the adjustable cam sensor from a 1g, seems that was the original your car had as someone may have done the swap, you will need to set base timing for that one. U may be advanced in ignition timing or retard.
U need to make sure u have a bead around the end of the pipe. Cheap enthusiasts use hair spray to hold it together, but the correct way would be to have a bead right before the clamp is. T bolt clamps preferably.
Replace your cas. Or give it a few good taps. I've found that unplugging your battery for several minutes then plug it back it will get it to start again.
From factory the Cam Angle Sensor has power, ground and the signal wire. The Crank Position Sensor also has power, ground, and signal. You need to take the wiring apart and find that sensor its own power and ground or remove that sensor altogether and install the 1g 4 pin CAS. It bolts right in...
I would say remove the engine yourself. You'll learn on the way and know its put together right if u do it. You'll get more knowledge and know how to work on your car easier. No major things u need, just an engine hoist, a jack, jackstands, and regular mechanic tools. Be sure to keep everything...