1997 dodge dakota v6 engine wont start replaced plugs and wires all 6 injectors the computer the crankshaft sensor and camshaft sensor and throttle position sensor ad idle air control valve the engine will run while spraying fuel into the throttle body but dies when fuel is gone

Question edited for clarity.
Question moved to model category.

Sensor issues or wiring to them.

Code P1391 Dodge CMP or CKP Signal Intermittent ...

AutoCodes https://www.autocodes.com > p1391_dodge
Engine Light ON (or Service Engine Soon Warning Light) · Lack/Loss of Power · The engine may be harder to start · The engine may stumble or stall.

Cam Sensor Failure Causing no Start or Stalling : Dodge ...

RepairPal.com https://repairpal.com > Problems > Dodge > Dakota
On 3.7L V6 and 4.7L V8 engines the camshaft position sensor may fail causing the engine to crank but not start or it can cause intermittent stalling.

Dodge Dakota Vehicles With This Problem

RepairPal.com https://repairpal.com > Problems > Dodge > Dakota
On the 3.9L V6 and 5.2L V8, an intermittent connection in the crank position sensor wire connector can cause poor engine performance or the engine may crank but ...

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I am assuming this engine ran before the repair? Not sure why you would replace these unless there was a problem. Check and make sure all wiring connectors disturbed during repairs were hooked back up, in particular connectors to the crank sensor, cam sensor, ignition system, etc. Make sure wire and/or wiring harnesses were not damaged, pinched, stretched or otherwise compromised during the repair. Make sure fuel/ignition/engine computer fuses are not blown. Try starting vehicle with a shot of starting fluid in the air cleaner. If it runs briefly but dies look for a fuel related issue such as no fuel pressure, or if the vehicle has an anti-theft system a problem with that as in some systems it disables fuel injector pulse. If the engine does not respond whatsoever to a shot of starting fluid check for ignition (spark). If not found double check crankshaft and camshaft sensor wiring. It is completely possible the sensor or sensor(s) you replaced are bad as well. Nothing guarantees a sensor to be "good" even if it's a new part.

https://www.obd-codes.com/p0172

P0172 and P0175 OBD II Trouble Codes

Hi mate start at the easiest point which will be to check your EARTH to make sure everything is earthed.

Every engine has to have a way to know where the cylinders are and thus when to fire the spark plugs. Since your engine does not have a crankshaft sensor, the only means that the onboard computer has to know where the crankshaft is would be the sensor in the base of the distributor. This sensor monitors the position of the camshaft and thus can ascertain the position of the crankshaft as well. This, or the computer itself is the most likely culprit if you are failing to get spark.

REPLACE AIR FILTER,CHANGE SPARK PLUGS AND WIRES.CLEAN FUEL INJECTORS.THEY COULD BE LEAKING FLOODING ENGINE FOULING OUT SPARK PLUGS.

check fuel pump pressure to see if it is getting the right pressure for fuel injectors and or fuel filter under driver's door on frame might have junk in it.

when you say it has gas are you sure fuel is being injected by the injectors?
if not sure get whats called a noid light, sold at all large auto parts chain stores.they are inexspensive.plug it in to an injector connector and have someone crank engine if it blinks then injector signal ok. the light will give a dim blink which is ok.
no blink check for a blown fuse/loose connector/short to ground from engine to computer.
other causes of no start would be;
timing chain slipped
plugged exaust [melted down cat converter]
low fuel pressure
a major sensor failure,map sensor/throttle position sensor/crank,cam sensor
pcm [computer] failure or wireing to it
ignition switch
low compression

has anyone put the lab scope on ignition yet

could be a bad crankshaft position sensor or a bad camshaft position sensor. Either would cause no spark. I would check to see that you have fuel coming up to the throttle body