I changed my cam,throttle body & Intake manifold.The cam was changed from 226dur .585 lift 112 LSA to 226/230*dur .598/.600 Lift 113 LSA from stock throttle body to FAST 102 mm, stock intake manifold to FAST LSX rt. This is on the truck in my signature
Anybody No Opinions?
I can tell you the VE table is wayyyy off
There is no way the values are 140-150 in the 35-70kpa region under 2000rpm
Can you see where I did anything wrong, the scan show the LTFT to be in the correct range. I disable the MAF, I reset the fuel trims,and hit learn, I didn't touch anything Under PE or DFCO.
I'm looking at my secondary VE vs RPM vs MAP table those numbers aren't in there. You must have been looking at the main VE tableQuote:
Originally Posted by FormulaLS1
I guess I forgot to ask are you planning on running a MAF again? or just run SD off the 2ndary VE table?
I plan on running MAF, If I was to run SD I would have to adjust both tables? Those high numbers were before I learned I needed to use the secondary table and not the primary. I kept adding to the table and nothing was changing HAHAHA
If you plan to use the MAF again, it will use the Primary VE table for transitional fueling. When the MAF fails, the earlier code was setup to use the Secondary VE. GM figured for 2000 M.Y. that they didn't need the Secondary VE table and stopped putting it in the code.
You will need to copy over your Secondary VE table to your Primary VE table when you are done, and intropolate between the missing rows. Or you could have made the changes to the Primary first and copy every other row to the secondary as you went along. :) This way you wouldn't forget to go back and do the Primary when you re-enable the MAF.
I'll remember to do the Primary VE table too, other than that it looks ok? Anything else I need to look at, I really need to learn some Idle tuning
12secSS My truck is a 1999, I was changing the primary table with the old version of HP tuner. It didn't have a secondary VE table when I upgraded to 2.2 It had a secondary table and a primary, I was changing the primary nothing was changing on LTFT scan log. then I learned I had to use secondary table on version 2.2 I now have 2.23 and it still makes changes in the secondary table. But I'll do both just to be sure.
Anything else please I'm trying to learn for my own use.