wont start!

[forzarallyOZ]

ive tried serching through here and still i havent found the problem...

night before car is boosting great running stong on the highway...next morning, wont start.

i hear the fuel pump, checked the spark plugs and wires and all spark, changed the ECT, changed the starter, changed the alternator, battery reading 12.3 volts, fuses are all good...timing blet is good

could it have lost compression overnight? sounds crazy...
flooded due to bad ECT? i showed symptoms before of a bad ECT i found through here so i changed it...

it turns and i hear it wanting to come on..it almost does a few times.. i did hear it backfire a couple times..

 

[THEevo8urV8]

im sure you checked it but check your ground to your starter my friends talon sounded just like yours and all it turned out to be was a bad ground... also if you have aftermarket security system that might be messing things up??

 

[racingmason]

got mine running try changing your plugs, mine looked good barely used, and had a good gap. swapped out new ngks and fired right up