2013 Dodge Challenger R/T 5.7L no injector pulses

[njmike]

Thank you in advance to any gurus that can provide some potential assistance!

I had my car tuned by a professional tuner and I am having an issue with the tune that I don't know enough to resolve (why I paid a tuner in the first place)

Full disclosure it could be car related and not tune related but I don't think so.

If I start the car and let it run for about a minute and half and then turn the car off I get a no start condition. If I do it earlier the car starts without a problem and if I let the car warm up for a little while it will shut off and restart without a problem. For some reason in this narrow window it goes to a no start. You can see in the attached log that the injector pulse is 0 during the no start. Does anyone have any idea what would cause this?

I have ruled out voltage issues (created the no start condition and connected a jump pack).

The no start condition is very repeatable and I can make the car do it every time.

[N2speed]

what mods were done and do you have a copy of the stock file?

[njmike]

Thank you for taking the time out to review this.

I have added the stock file to the attached files. I will also attach the cam card.



About the car:

2013 Dodge Challenger RT - 5.7L hemi - 6 speed manual transmission

Exhaust:
-Borla Cat back exhaust
-BBK shorty headers
-Gutted Cats with O2 extensions
-Wideband O2 sensor installed after the first O2 sensor but before the cat (on the drivers side)

Engine:
-TorqStorm supercharger (ARP-K-DG-HEMI2 older smaller version)
-Comp Cams 201-428-17
-MOPAR Heavy Duty Gen3 HEMI Lifters
-Comp Cams 5761 Phase Limiter
-PSI valve springs
-Titanium Spring retainers
-Stock intake manifold
-Stock injector rails

Torqstorm supporting changes:
-ltr7ix-11 6510 spark plugs gapped at .032
-65 lb/hr or 700cc New OEM Demon Injector (Mopar 05038838AA)
-2-Bar MAP sensor (Mopar 05033224AB)
-Intercooler (front mounted) - 3 inch charge piping
-Snow water/meth injection kit 201 stage 1 (bung after IAT and close to throttle body blade)
-Kenne Bell Boost-A-Pump (KB89069)
-AEM fuel pressure gauge
-AEM boost gauge
-AEM X-Series OBDII Wideband

Tire size rear
- 305/35R20

[njmike]

Not everything was done to the car all at once.

I installed the cam and had the car tuned (car ran fine and no problems to report other than the tune wasn't the greatest and if I revved the car the rpms would get hung up). The car has been cammed for a couple of years.

I installed the supercharger and other supporting components and used a different tuner.

[Spray-Cam Hell-Ram]

Try this. For the injector pulse issue, its probably a long shot. You might have a failing PCM if nothing that's submitted fixes this. Its not uncommon to have them start to fail in different areas of the PCM. You can also try to do a hard reset and see if that fixes anything if you haven't tried that already. That being said, I went through the majority of this tune and made some changes throughout. Saw some issues and made some changes that hopefully improve a couple things if anything else. You also were not tuned for a limiter so I fixed that as well. You just need to log exhaust cam center position or center line to see where your cam is at when full advanced. Not sure exactly what a 13 5.7L Challenger sees when the cam is full advanced. I just used 128 so if it turns out to be 130 then just add 2 degrees to the entire table for each of the exhaust cam tables on the right side of the page under Variable Camshaft. And if 125 then subtract 3 (Actually add -3) to the entire table for each of the exhaust cam tables on the Variable Camshaft page. You are running a comp cam so I assumed you have a 14 degree comp limiter installed and tuned this section based on that assumption. So if the issue doesn't resolve after loading this, at least you have another revision with some changes that you can look through and keep any changes made that you feel are working better for you.