Ok was low on fuel ,got some then went across the street shut it off . tried to start it just spins .Wont start i have spark an fuel. changed fuel filter timing gears and mod ,still wont start,, theres fuel going to injectors

Could be fuel starvation or idle control valve

wouldnt start before all that or just after, (hummmmmmm)
wont crank or cranks robustly but wont start.
check fuses yet?

REPLACE STARTER OR SILINOID

The ECM sends a GND signal to the Fuel Pump relay to switch it ON. When 'jumping' relays, there is a risk that you might feed +12V to Gnd switch line, in this case the ECM line. If left too long, this would blow the diodes in the ECM. Try using another ECM. Try following the ignition circuit from the ignition coil back to the ECM. One of the wires connected to coil should have +12v when IGN on. Sparking only happens when ECM sends GND pulses to the coil. If ECM is OK, check camshaft position sensor, which is also usually referred to by the ECM for ignition firing.

check the timing belt

change your fuel pump relay.

Check fuel pressure and for sparks

If u hear the engine cranking in the AM, the batt & alt sound good. If you don't get any engine cranking in the am you may have an electrical short draining the battery. Before u convict the starter u must make sure the battery has full power in the AM. (12V) & 12 V to the starter

Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.

To confirm the problem, the basic troubleshooting is required.

Click this link below and follow the troubleshooting:------

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

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This will help.

Thanks.

low oil wont cause this problem did your oil light come on and was the oil low cause if not adding to much oil can damage the motor it might be time for new spark plug wire basically a tuneup when was the last time u had one