cranks but won't fire up

[bullitt boy]

OK driving home from a car show car felt a bit "rough" like a very slight misfire but intermitent. Car has a vortech intercooled all forged internals with a very low [1200] mileage 302 stroker. Went to pass someone and got on the gas with a 3rd gear downshift. During decelleration car starts backfiring real old school about 6 times very rapid succession. After this car dies. no power coasted off made it into a gas station and car will not start, cranks great no grinding sounds or clanking noises it just won't fire.There is no oil on the ground or smell of it in the engine compartment or oil spray either, dipstick looks good. Could I have clipped some plugs?Can't pull em tonight no garage to work in. Input please.
Yeah and before someone else says it cause my wife already did I know I'm a dick for getting on it after feeling it wasn't running right.But as I said it was an intermitent thing and not like a detonation type feeling just a slight hic-up.

 

[fiverivers]

Do you have a check engine light, if so check codes. Check spark plugs.

 

[bullitt boy]

Did not throw any codes, Plugged in my SCT while waiting for the flatbed and ran a check showed no codes.Tried re-loading the tune as well.

 

[lostsoul]

Did u check the fuel cut off switch

 

[JeremyH]

Plugs, then go from there. Are you getting fuel/smell when trying to crank?

 

[bullitt boy]

Reached in there and the fuel cut off felt like it was in the down position which I assume is the on position it would not depress or "click" when pushed.

 

[bullitt boy]

No fuel smell, Did not crank it alot maybe 10 second shots 4 times.

 

[JeremyH]

Maybe fuel then. If its bad spark keeping it from turning over, then fuel will be pooling and def be notiecable smell wise. Can you hear the pump prime at key on, fuel pressure gauge?

 

[bullitt boy]

As you can tell i am not a mechanic I turn some of my own wrenches but am limited. The real question is if this sounds like there could be any internal damage? Wolud'nt i hear it if something was cracked or disconected inside the plant?

 

[bullitt boy]

To tell the truth I didn't notice the pump sound brand new dual gt500 pump back there.

 

[bullitt boy]

No fuel pressure gauge.

 

[navbtcret]

Try holding the gas pedal to the floor and starting it, especially if you are smelling gas when you are cranking it over.

How long ago was the fuel pump installed?

 

[bullitt boy]

When I turn the key to on position i can hear a bit of noise from fuel pump area really don't know what it should sound like but it is making a noise .

 

[bullitt boy]

Not smelling any gas when cranking , fuel pump is 1200 [ 3 1/2 weeks] miles old. Car has been running great no issues at all A/F has been spot on right through the range.

 

[bullitt boy]

Before someone asks it is showing 1/2 tank.

 

[JeremyH]

Unplug the maf and try starting it.(dont try to drive it like that, it basicly bypasses the tune) If it starts it is tune error/issue. If it doesnt turnover sounds like a fuel/spark problem. Even though it says a half tank add a couple gallons of fuel. Check all the plugs/cops/connections. If there is fuel and your pressing the gas pedal and it is cranking and doesnt start you should def smell the gas.

 

[bullitt boy]

Unplug at the CAI ? it has a "Mafia" also how about that?

 

[KungFuHamster]

As you can tell i am not a mechanic I turn some of my own wrenches but am limited. The real question is if this sounds like there could be any internal damage? Wolud'nt i hear it if something was cracked or disconected inside the plant?

if something was broken internally youd know it...youd hear anything from a nice tap to a loud knock.

try disconnecting the battery, let it sit for 20 min and then re-connect the battery.

 

[KungFuHamster]

Unplug at the CAI ? it has a "Mafia" also how about that?

at the CAI

 

[bullitt boy]

The fuel cut off switch is inside that small opening and feels like a small rubber button .How hard is it to reset when off? To me it felt like it was as depressed as it could be.