Engine Misfiring and Stalling
 

So this problem came up after my battery died. The car starts and idles but after it warms up it just bogs and misfires when you give it gas then dies. No CEL or codes.

2013 BRZ 45K
-Avo turbo kit
-Delicous tuning flash & go reflash
-Nameless 3 inch downpipe
-Perrin 3 inch catback
-Avo catch can
-3 Bar MAP

Tried-
Cleaning the MAF
Checking the Cat to see if it was clogged

Any Ideas?

I know nothing about flashes, but does it have to be reflashed after losing battery power for X amount of time?

Sounds like the mixture is way off, like the CEU is giving way too little fuel.

flat battery wont effect tune in ecu its in flash memory.

did you relpace battery or just charge it, check battery volts

check any connections you touched

check maf plugged in correctly and gasket under maf is good

Could be a vacuum leak. Check turbo hoses for leaks and clamps are tight.

How is your total trim after it warms up and starts to run like crap? AFR?

New battery, checked the alternator, and all other electronical connections. No obvious lose turbo or vacuum lines. It drove around fine but once it warm up same problem. It didn't want to restart and you could smell gas for alittle bit. Let it sit and fired right up. Trying to find my cable so I can log this

Also does your fuel pressure look good? First task is is to figure out if it's missing because of a prob with fuel or fire, then work back. If you don't have a CEL, I'd suspect fuel pump since it's a hot soak issue.

The battery problem could be incidental. Why did you replace the battery? Did you have it tested?

It's getting fuel at least from the pump. Battery went bad and it was tested and replaced.