Popping and loading up?!?!

Reply Subscribe

Thread Tools

Search this Thread

Dec 3, 2006 | 10:59 PM

chrismcdaniel

Thread Starter

11 Second Club

iTrader: (14)

Joined: Aug 2003

Posts: 930

Likes: 0

From: Kentucky

Popping and loading up?!?!

Of, i finally got the car to idle and i figured out how to keep it from dumping fuel in after it warms up. I have some issues that might be easy for some of you more experienced guys to figure out.

i have a 12:1 CR LME 408 Stroker in an A4
Im running a Vic Jr. Style intake
TFS 225 heads
SD Tune

I ended up haveing to raise the VE tables 10% from 400 - 2000 RPM to keep the STFT's close to Zero, which allowed the LTFT's to stay at about -8.6...most of the time anyways..

I know im still reading a little lean..

But, I took the car on a little test drive, and the car would sputter and backfire in the lower RPM's Loading up and blowing black smoke..

I obviously am running too rich in the lower RPM's based off of my raising the VE Table 10% to get it idle without leaning out..

I just cant seem to find the happy medium..

What am i doing wrong?

Thanks,
chris

Dec 3, 2006 | 11:02 PM

S99TA

11 Second Club

Joined: Jan 2006

Posts: 147

Likes: 0

From: North liberty, IOWA

do you have a wideband o2 sensor?

Dec 3, 2006 | 11:07 PM

chrismcdaniel

Thread Starter

11 Second Club

iTrader: (14)

Joined: Aug 2003

Posts: 930

Likes: 0

From: Kentucky

Quote:

Originally Posted by S99TA

do you have a wideband o2 sensor?

not yet... i know, i have to get one.. but i just got HP tunners and was just going to get it running good enough to take it to the dyno and tune the A/F.. i just assumed i would be able to get it close without it by watching the what the Fuel trims where doing..

Dec 3, 2006 | 11:11 PM

foff667

LS1TECH Sponsor

iTrader: (2)

Joined: Jul 2003

Posts: 7,986

Likes: 3

From: Clermont, FL

I already posted in your thread on hptuners' forum, but do you care posting your file, maybe we can give you some pointers in the meantime before you get that wideband

Dec 3, 2006 | 11:28 PM

chrismcdaniel

Thread Starter

11 Second Club

iTrader: (14)

Joined: Aug 2003

Posts: 930

Likes: 0

From: Kentucky

Thanks Foff667, i uploaded them on HPTunners forum.. but ill upload them here too for folks to see.. the one that says 25 november is whati tunned FROM, the one that says 3 Dec.. is the changes i made to get it to idle.

thanks,
chris

Attached Files