The car cranks but won't start. There is no spark, no fuel, no injector pulse. I have manually made the contacts in the shut down relay still nothing. I jumped the fuel relay and the fuel pump runs and I get gas but no spark or injector pulse. I replaced the ECU with a module from pick and pull still nothing. I have red that the cam and crank sensor can shut things down. What do I need to do next?

does it have spark ?
No Start No injector pulse shorted injector part 1

No Start Testing Basics Spark Injector Pulse and Fuel Pressure Hyundai...

GM Bypass Ignition System Operation part 1

If you watch any of these ,watch the last one .Ignition control module can cause no injector pulse but still have spark

May need special priming sequence for pump. Haynes manual should have the proceedure. My van has a safety switch like that. Contacts have to be shorted for exactly 5 seconds with key on for mine to reset and prime in tank pump.

Technically, you don't have one.
If it cranks good but won't start, have a helper crank it while you check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure and fuel injector pulse. Any applicable trouble codes?
If only a fuel issue, check voltage and ground at the fuel pump, note the wire colors, also, check the fuel pump relay.

How long since a tune-up? Are there any applicable trouble codes? Some of the national brand auto stores will check codes free. Does it stall at idle or going down the highway?
With extended crank, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure and check fuel injector pulse.

If injector pulse is missing when problem is ongoing, two things I think of, do you have an rpm signal and security system where applicable. The rpm signal comes from crank sensor. Intermittent problems can be a pain to track. Don't replace anything unless your testing points in that direction.

Is the vehicle equipped with a security system that may be tripped? If so, the injectors will shut down. The injectors are grounded by the PCM . You may have an internal Issue with it. Is the spark also shutting down when the injectors aren't working? If so, this could be a crank shaft sensor failure. Is there any diagnostic engine codes that can be retreived to possibly isolate the problem?

Have you jumped the fuel pump relay socket to see if it turns on?

Fuel pump relay may be weak. Try removing the connector from the oil pressure switch and connecting the terminals together so as to bypass the switch.
if this works, replace the relay.

Make sure the battery has a full charge. If it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure, also, check fuel injector pulse. If your missing everything, check cam and crank sensors.
With engine cranking check primary voltage to coil and fuel injectors, brown wire with white tracer. If no voltage leads back to asd relay. I'm not saying that relay is faulty. You can see fuse for that relay, that fuse circuit is hot all the time. The computer grounds the control side of relay if it sees proper cam and crank signals.

When the problem is ongoing, check the basics. Make sure battery has full charge. When the problem is ongoing if it cranks good but won't start, Have a helper crank it while you check for spark at the plugs. If spark everywhere, use a gage and check proper fuel pressure. Also, check fuel injector pulse.
Trying to find what is missing, fuel--spark--whatever. I can only help with testing, you have to do the testing.

If computer sees no crank sensor signal it shuts down pulses to the injectors. But, you bring something new into the mix. Make sure fender grounding is good so the relay can operate properly and make sure power going to it is not restricted by a loose or dirty contact on the power side.