Lean off idle only once warmed up

[boosteds10]

So ive pretty much given up on selling my typhoon and im just gonna start driving this thing as much as I can.

This just recently started happening where when I first start driving it everything is fine but after a few blocks or so it sometimes goes lean and bogs down at about 5% throttle. If I push it a little more or get off and then push it about 25% it will just move past that point without a problem. Its really apparent off idle and happens sometimes when cruising slow at 30mph or so.

Anyone have any ideas? Mods are in my sig. Im running the code $59 Base tune.

 

[NecroWolf]

Re: Lean off idle only once warmed up

dirty iac?

 

[boosteds10]

Re: Lean off idle only once warmed up

Iac is brand new 300 miles ago

Forgot to mention it also idles perfectly

 

[WyoSyclone]

Re: Lean off idle only once warmed up

In running Code59 it's really probably just a tuning issue. Until you've done a few autotunes and worked with f29x table you'll run into these rpm-related lean/rich transitions. I just moved from 900ft elev to 4000ft elev and took the Sy out for the first time today for a trial drive. I've already noticed one spot that, although the Sy was running perfect in Oklahoma, it is now rich at this altitude. Hopefully I'll just have to change a baro table... but this example is just to illustrate that although you've gotten a good base BIN off of the Code59 site, you'll still need to dial it in to your truck....every one runs different, even if built with the same parts.
I'll have my tuning laptop up and running in a few days and would be glad to help with your BIN/datalogs.... we'll want to keep those posts over on the Code59 site so that everyone can learn from the process.

 

[boosteds10]

Re: Lean off idle only once warmed up

Thanks Wyo, I really appreciate that. The only thing that was throwing me off was the fact that its fine on initial drive and only happened once warmed, that why I kinda thought it could be something else...Ill see what I can do about the tuning and let you know once a thread is up at code$59

 

[WyoSyclone]

Re: Lean off idle only once warmed up

Thanks Wyo, I really appreciate that. The only thing that was throwing me off was the fact that its fine on initial drive and only happened once warmed, that why I kinda thought it could be something else...Ill see what I can do about the tuning and let you know once a thread is up at code$59

No Prob... when it's cold (lower than 160f) it will run with a different set of modifiers... as soon as it hits 160, f29x takes over.. that's why you always want to make sure the truck is warmed up before you start tuning. When cold it's running richer... when you change the throttle position more than a few percent, or change rpm rapidly enough you have AE modifiers that come into affect... that's why you can pass through the problem area and then it seems to run OK. Yup, just post up on '59 and we'll all pitch in to help you through it