Crank, no start

[Jacob Schaening]

I have a 07 GT500. I pushed the car outside to was. It now cranks over good but with no start. I have minimal mechanical expertise. I checked the engine bay. No water on the fuse box, battery connectors, coils/plugs. I can hear the fuel pump priming when I turn on ignition.

Last time it drove was 2 day ago with no issues and has about half a tank currently. The reason for pushing it outside is that my garage and driveway are on a slight incline putting the car in neutral moves it on its own.

What my next steps?

 

[stkjock]

Try starting it with the pedal to the floor?

possible a leaky injector flooded the cyl

if it fires, release pedal immediately.

 

[yote0]

What my next steps?

Pull codes and post them.

 

[Jacob Schaening]

I have tried both above items. Trying to start while gas pedal is on the floor. No change when cranking over.
Checked codes. No code appearing.

Could it be my crank position sensor?

 

[Dino Dino Bambino]

Could it be my crank position sensor?

It's possible. A bad crank position sensor can cause a crank but no start. You'll hear the fuel pump prime but since the CPS controls both the spark AND the injectors, you'd have no fuel going into the cylinders. These symptoms distinguish a bad CPS from a bad clutch safety switch which wouldn't even allow the engine to crank.
Before you start firing the parts cannon, try cranking the engine over again and then check each spark plug to see if there's fuel getting there. If there IS fuel, the problem isn't the CPS. If there isn't, test each injector harness with a noid light. A failure to light on all eight will indicate that the ECU has cut the voltage supply to the injectors, making a bad CPS the likely culprit. You can confirm that diagnosis by checking if all eight plugs produce a spark.
Fortunately a new CPS (always buy OEM) is fairly inexpensive and is easy to replace.

 

[CrashDevine]

change keys and start it, sounds like security problem

 

[DieHarder]

change keys and start it, sounds like security problem

In my case the security system prevented cranking. Had to replace the security module to get it running again. Thank god I had an extra. Only other thing I can offer is my FPDM failed; symptoms were similar in that it would crank but not start. As Dino says ensure fuel is getting to thru the injectors. Question: What was the last thing you worked on? I usually find something I did or forgot to do the last time I worked on the car was the source of my problems. If the CPS is good I'd check the following...

When in doubt consult the manual. Not the greatest online manual but may help point you in the right direction.

Starting Concerns: https://iihs.net/fsm/?d=9&f=Step 2-...es (DTCs) Present Symptom Chart Index.pdf&p=1

Chart 3: https://iihs.net/fsm/?d=9&f=Step 3-... Codes (DTCs) Present Symptom Charts.pdf&p=12

Pinpoint tests: https://iihs.net/fsm/?d=11

Fuel/Ignition: Pinpoint tests A: https://iihs.net/fsm/?d=12

I'd look at the other similar threads for ideas as well. Good Luck