Just finished my COS tune and no start

[yzriders182]

I just uploaded a COS3 tune and went through the tutorial and made all the changes it suggested. I also changed my data to match that of my injectors, but the truck won't start. It fires right away then just cranks. Shut the key off then try again and the same thing.

I attached my tune and any help is appreciated. Riebel 2003 5_0001.tun

Thanks

[gmperformancecentre]

what size injectors are you using

[gmperformancecentre]

i see B4001 looks wrong.you have it at

LABELS Injector Flow Rate (Grams/Second)
Manifold Vacuum kPa {link: GM.MANVAC} Value
0 71.656250
5 71.656250
10 71.656250
15 71.656250
20 71.656250
25 71.656250
30 71.656250
35 71.656250
40 71.656250
45 71.656250
50 71.656250
55 71.656250
60 71.656250
65 71.656250
70 71.656250
75 71.656250
80 71.656250

[yzriders182]

That's what I calculated for the injectors. Are you saying the units may be wrong?

[yzriders182]

Do I need to do any relearns after the full flash? I did have to recover my PCM. Would that have anything to do with it?

[limited cv8r]

It looks as though you may have entered the data as LB/HR instead of G/sec in B4001, so 71.6563 LB/HR = 9.02853 G/SEC. Good pickup gmperformancecentre.

[gmperformancecentre]

It looks as though you may have entered the data as LB/HR instead of G/sec in B4001, so 71.6563 LB/HR = 9.02853 G/SEC. Good pickup gmperformancecentre.

As limited cv8r said.you have enter the data wrong,should be 9.02853 not 71.6563.

[yzriders182]

Thanks guys! Ill give that a try.

[joecar]

+1 check your B4001 units.

Good catch Steve.

[joecar]

BTW: A0001,2,12,13 are out-of-range.