Pontiac Repair: car wont start, crank sensor, compression gauge

Question
I have an 88 celebrity 2.8 it won't start kicks back like it is out of time. Checked that and its ok. originaly had no spark I replaced the crank sensor now this. Have tried replacing the ignition module,ecm but not the prom,checked all the grounds to the ignition and ecm,checked the injectors for shorted out ones,firing order is not crossed. What am I missing?  Rob

Answer
Hi Robert:

well in order for it to ru  it needs 3 things spark,fuel and compression. have you checked the cylinders for compression witha a compression gauge? do you have spark at all 6 cylinders? and lastly injector pluse. you need a "noid" light to check for injector pulse. you should be able to unplug 1 injector on each bank to check for pulse. this engine it fires a complete bankk at the smae time this is not a sequentianlly fired engine. it fires 3 injector as the same time. do you have access to a scan tool? if so when your cranking the engine does it show on the scan tool engine RPM's? that is the key there. if it doesn't see any rpm's when cranking the car will not start and run. if you have a wiring diagram check the spark control and engine rpm input wires from the ignition module to the ecm for an open, short to ground or high reistance. good luck :)