Hard starting on supercharged C6
Thread Starter
2nd Gear
Joined: Mar 2018
Posts: 2
Likes: 0
Hard starting on supercharged C6
My car: c6 2010 ECS 1500 kit, blower cam, headers. Ligenfelter fuel pump (because car leaned out around 4K and I needed more fuel)
my Problem: Car sometimes starts up on first rip, but usually doesn’t. It takes until the second go around and it starts right up. Is the problem in the tune, the fuel pump or is the problem because I haven’t put in Ls9 map sensor. I’m running stock map, but I’m changing to the ls9 map this weekend. Im not super experienced yet so be easy lol.
I just need rhe car to start up on first rip. Lol
my Problem: Car sometimes starts up on first rip, but usually doesn’t. It takes until the second go around and it starts right up. Is the problem in the tune, the fuel pump or is the problem because I haven’t put in Ls9 map sensor. I’m running stock map, but I’m changing to the ls9 map this weekend. Im not super experienced yet so be easy lol.
I just need rhe car to start up on first rip. Lol
Burning Brakes
Joined: Mar 2014
Posts: 1,238
Likes: 203
From: Lexington South Carolina
i would check your fuel pressure to see where it is at after the first prime before starting. If your check valve is letting the pressure bleed down too much while it is shut down, it may be taking up to the 2nd try to build the pressure you need.
Platinum Supporting Vendor
Joined: Sep 2001
Posts: 5,730
Likes: 270
From: VENTURA Ca
Check the cranking VE in the tune. (after verifying fuel pressure) That gets forgotten sometimes. Start at 75% and go from there. The bigger the injector the lower that table needs to be.
Premium Supporting Vendor
Joined: Oct 2004
Posts: 23,599
Likes: 1,226
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
