Ian300D

It's damn near free so do the following. Look up all ground points on car in engine bay that are easily accessible. Including the battery terminals. Scrap all connections bare metal clean. Many times a hard start is fixed this way. Also the only time I ever have my AEM V1 hard start is if I kill engine taking off and then within 3 seconds try to start it again. I had to teach myself to wait 10 mississippi's and then starts normal. If yours is happening after getting pulled then i'm assuming your well past the time periods i'm talking about and that is not normal behavior. Also if it can be recreated, look over all the thick gauge wires and see that their not routed too close to heat. I've had a Jeff Evan's tune twice now, and his start up tune is perfect for me.

s2kingz

Sounds like a similar problem I'm having. All tho I'm N/A. Does your's do this as well? https://www.youtube.com/watch?v=Gw7VDt7Xg6s&t=0s

davidc1

First, it's got nothing to do with the battery. Get some starter fluid at any automotive store. The next time this happens, spray some into the air filter. If the engine starts (and it will run rough until the starter fluid is burned up), then you have a problem with the fuel injectors. I've seen screwed up tunes where the injectors don't squirt enough fuel at hot engine temps.

KillerCom

The injectors are brand new and have been recently cleaned and flow tested by injector dynamics themselves

S2Kennyy

Drove this setup a few days, they owner gave his powerbank allong.... now i know why, he have the exact same problem, aemv2 with a PC680.

i would look at a fullsize batterie of a higher amp one, so the AEMv2 gets enough juice to get over the starter peak.

DECAB

My aem is set to not let the car start if the engine is hot. I have to depress the gas pedal 1/2 way down to bypass it.

KillerCom

I wish that were the case, unfortunately the car just cranks really slow when the motor is hot.. I can throw a jumper back on it and it starts right up no problem

RacerXI

Have you checked the battery voltage when the car cranks slowly?

KillerCom

I have not, I'm assuming it's a ground issue. When I go to start the car the ground wire going from the battery to the firewall is usally very hot.