If it tried to start, then we are getting spark to the plugs. Is there any chance of a timing-related issue? Also, I need you to check for an injector pulse.
At each injector, there will be a red wire. That wire on each injector should have power when the key is on.
Also, each injector will have a wire of a different color. That goes to the PCM which provides a timed ground path to complete the circuit and actuate the injector.
See pic below
Here is what I need you to do. First, confirm there is power to the red wires. If there is, then take a test lamp and connect the alligator clip to the battery-positive terminal. Probe the wire that is a different color and have someone crank the engine. While cranking, the test light should strobe on and off.
Let me know what you find.
See pic below.
Image (Click to make bigger)
Friday, June 2nd, 2023 AT 8:10 PM