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Please Help 2015 chevy 1500 with 5.3
not used to direct injection
stage 1 truck cam
vvt limited
dod delete with ls7 lifters
will cold start and idle rough
will start and die after warm up...

I did the 02 van 5.7 and runs good but will not start
You have to give it half throttle and idles like crap
Got it to start, then dies and just won?t idle
124598
124599

Hell I’m sitting here with hp tuners
What tool did you use
Plus if already used 2 credits

0411 ecm on 96 5.7
Crank but no start Have power going to coil no fire
New crank sensor and no rpm signal
I used the 02 van 5.7 just copied and pasted to my file
0411 OG was 01 5.3 suburban...

6.7 408 lq4 with holley intake 300-122
95mm throttle body
54 lbs injectors
custom cam by comps
circle d 3200 stall converter
2 bar map
port and polished prc 2.5 cathedral 317 heads
10.9 : 1...

01 Chevy 2500 RPM Stage 4 4l80e and circle d 3200 converter
I know its locking up at shifts point I'm working on that
when the speed, temp, pwm duty and TPS is right its doing what I want it to...

Is there anyone that knows what going on I'm have the same issue


2001 chevy 2500 hd stock trany circle d 3200 stall

I having the same issue but in first were do I find first
01 chevy 2500hd 6.7l 408
stock 4l80e with circle d 3200 stall

Fuel Compatibility Standard Gasolines & Ethanol Flex Fuels
Fuel Pressure 300 kPa
Static Flow Rate n-Heptane: 5.8 g/sec (46 lb/hr, 508 cc)
Dynamic Flow Rate n-Heptane: 13.35mg/pulse (2.5 ms PW, 20...

And I was wrong about the injectors
there 48lbs
wish they had a picture of a donkey on here
and with the cylinder volume just under engine, general, size and cylinder volume
change it to...

The injector are holley accel high impedance
I do have a AEM afr gauge and it just bounces around to much. Its little old and needs to be recalibrated.

6.7 408 lq4 with holley intake 300-122
95mm throttle body
54 lbs injectors
custom cam by comps
circle d 3200 stall converter
2 bar map
port and polished prc 2.5 cathedral 317 heads
10.9...