2005 silverado with 6.0 cold start dip

[2000ss]

2005 silverado lq9
stock heads
lunati 222/228 cam
2800 stall
hooker longtubes
delphi 42lb injectors

its in a 1st gen camaro if that makes any difference car has a light dip when 1st starting when cold and if i try to give it a little gas (when cold) it has a slight hesitation i cannot figure out why when warm/hot the car runs perfectly fine lptuned 67x.hpt

i dont have a up to date scan but will try in the morning i will attach a video also

[5FDP]

If those are 28lb/hr injectors why does the injector flow rate say it's got 40+ lb/hr injector in it?

If stuff like that is wrong it will make things tough to tune, if the airflow and fueling off then everything will be off.

[2000ss]

If those are 28lb/hr injectors why does the injector flow rate say it's got 40+ lb/hr injector in it?

If stuff like that is wrong it will make things tough to tune, if the airflow and fueling off then everything will be off.

I?m sorry there 42lb idk how I got that mixed up, Aus injectors 56010-380-8-0

And I?m not sure why it won?t let me upload any photos or videos from my iPhone

[12ramhemi]

I?m sorry there 42lb idk how I got that mixed up, Aus injectors 56010-380-8-0

And I?m not sure why it won?t let me upload any photos or videos from my iPhone

Go to the desktop sight and its easier to upload documents. On the reply to thread box, click Go Advanced, there is an option there to upload

[2000ss]

https://youtube.com/shorts/fhagNTMNpmU?feature=share


https://youtube.com/shorts/X9bQPMwWxhM?feature=share


had to upload them to youtube and it only does this when the car is cold once its to operating temp it runs fine

[2000ss]

Ttt

[2000ss]

Can I get some help anyone ?

[RDF1]

Kinda hard to help without a datalog

[2000ss]

Kinda hard to help without a datalog

to tell you the truth i thought i inserted one of them, but i took two quick scans on my way to work the other morning

1 67.hpl2 67.hpl

[2000ss]

Ttt

[RDF1]

Datalog wont load for me since i dont have the latest version.

Try and Decay the startup airflow a little slower and see what happens.

Does Timing, AFR, IAC, or MAP show a change when it happens?

[Alvin]

2005 silverado lq9
stock heads
lunati 222/228 cam
2800 stall
hooker longtubes
delphi 42lb injectors

its in a 1st gen camaro if that makes any difference car has a light dip when 1st starting when cold and if i try to give it a little gas (when cold) it has a slight hesitation i cannot figure out why when warm/hot the car runs perfectly fine lptuned 67x.hpt

i dont have a up to date scan but will try in the morning i will attach a video also

Base running airflow looks really low for this setup.

You should log LTIT and STIT. See how much air its being learned up or down and apply that to the table.

[2000ss]

Datalog wont load for me since i dont have the latest version.

Try and Decay the startup airflow a little slower and see what happens.

Does Timing, AFR, IAC, or MAP show a change when it happens?

Timing was went from 20 degrees to around 7 but that is after the idle up

And the iAC is 310

Base running airflow looks really low for this setup.

You should log LTIT and STIT. See how much air its being learned up or down and apply that to the table.

Only channels I see are (idle adapt stit) and (idle startup airflow) are these correct