PDA

View Full Version : My LTFT's are pinned at 25% ????



kenkaru
August 22nd, 2006, 07:29 AM
I can't seem to get my LTFT's to budge from 25% at idle. Occasionally, they will drop to 9% or so for a few seconds and then quickly climb back up to 25%.

I have scaled down the VE table and it helped the idle a little but I'm down to 27-34 kPa range and LTFT's are still at 25%

What's up with this?
Yes I'm a newb so try to break it down a little please. :)

joecar
August 22nd, 2006, 07:57 AM
PCM sees O2S read lean, so it makes LTFT's positive to add fuel.

Can you smell fuel...?
Do you have any air leaks (headers, !EGR, !AIR, O2 bungs, intake, TB)...?
Did this just start to happen, or did it happen all along...?
Happens only at idle...?
What are your LTFT's for driving range...?

Post a pic of your VE table.

kenkaru
August 22nd, 2006, 08:47 AM
I can def smell fuel.
Thanks for all the suggestions. I have EGR! and AIR! so I wonder if they are leaking. I'll have to check it out. I need to take it for a spin too to see if it's only at idle but I bet it's EGR!/AIR! leaking.
Thanks!!!