Cold start question.

[12sec.5.3]

I'm having an issue when i crank up the truck for the first time of the day or after it sits a while and cools off to ambient temps. It will not idle on it's own, I have to hold it at roughly 2k rpm for 30 sec to a minute before it'll act right. It also goes really rich upon starting, I can actually watch the WB go from 15 down to 11.x. My tune is far from perfect but I'm fine with it, I just enjoy messing with it and exploring. Could someone put me in the right direction. Again, I'm not aiming for perfection, with the combo that I'm running it would really need to be retuned professionally.

[12sec.5.3]

Nevermind guys, I just figured it out and it took all of 5 minutes. Thanks anyways!

[joecar]

What was the answer...?

[12sec.5.3]

Well, I thought I had it but evidently not! I'm so confused lol...
I went back to my previous post from a few months ago and revised some of the tables with some stock tunes that I downloaded. It seemed to be working great until I tryed to crank it up on a cold morning after the front came through. Maybe I can post it up here and you can take a look at it. I know my MAF could be off bc I've been playing with it. It's my stock MAF from my 2000 5.3 set up but behind it is a 90mm TB and l76 intake on a 370. It's not a very common combo so I guess that's why I have so many issues.. It's a real mix-match but runs really strong

[minytrker]

Either your idle airflow or fuel is probably off. Post up the tune and a cold start log.

[12sec.5.3]

I have a feeling it's a little of both. I'll post it when I get home. If you don't mind, tell me wt tables to look at so I can look into it.

[joecar]

Did you already read thru these, they have what you're looking for:

Idle Tuning
showthread.php?4661-Idle-Tuning-Helpful-Info-Inside
showthread.php?14439-Idle-Tips-amp-Tricks
showthread.php?5866-Auto-VE-questions
showthread.php?14153-scan-tool-wont-log-rafig-or-rafpn
showthread.php?14435-Need-help-Can-Start-Car-but-dies-when-I-give-it-any-throttle-before-going-to-CL
showthread.php?7011-ETC-cars-and-IAC-parameters
showthread.php?14544-Working-on-my-idle-tune
showthread.php?14794-Help-with-open-loop-(cold-start)-tuning
showthread.php?149-Idle-(Transition)-Tuning

More Idle Tuning
showthread.php?t=149
showthread.php?t=5866
showthread.php?p=86553 post #17
showthread.php?t=2630
showthread.php?t=473

Throttle Cracker/Follower
showthread.php?t=3568
showthread.php?t=4081
showthread.php?t=5406
showthread.php?t=5940

[12sec.5.3]

Here's a cold start log. Notice the first cranks are at 0% tps then i had to give it some to get it running. Also threw in my current tune.

[minytrker]

List all your mods.

Your cranking ve and timing tables dont look right, they need some work.

[12sec.5.3]

6.0 bored to 370 ci., L92 ported heads , L76 intake, 90mm tb, comp. cam custom grind , 42 lb inj., headers, intake, and wtever else