tempoffroad

I have a lq4 that I have tuned sdol with 2bar map. runs and drives good as well as starting in the morning or when hot. the truck has a 78mm turbo and a turbo cam. I also have a 3200 circle d multidisc converter. when I try to give it gas at any amount of throttle when it hit 105kpa it falls on its face and my wideband is pegged out at 10afr. the only way I have been able to do anyting with it is if I am at 4k plus rpm. I have not gone over about 50% throttle yet. please help if possible.

ddnspider

iTrader: (26)

Youre power enrichment is set to something like 11:0 A/F. If the VE table wasn't acurately done, that would explain why its so rich. Also, do you have 40lb injectors?

tempoffroad

I am working on setting up the ve table but its getting hard to do because every time I get into boost it just hits 10afr on gauge and completely looses power. I have 42lb injectors and was going to run them at low boost till I get some larger injectors. im just shooting for like 6lbs to start. do I just need to back my ve table way down and go from their? I have been using the ve error table set at 30cells and then pasting them with 1/2 multiplier in the ve chart. Thanks so much for looking I appreciate all the help more than you know!

ddnspider

iTrader: (26)

I just took a quick look so yea if ur confident in ur wideband and ur timing is low and safe, then back the VE off and slowing creep up on it

tempoffroad

my timing is very very low. do you have a good starting point to lower the ve values to?

Beatdown Z

iTrader: (18)

I'm going to sound like Captain Obvious over here, but it needs tuned. It's as simple as that.

I would lean out you PE/BE by a full AFR point, by entering an EQ ratio of 1.233. This should help with the rich bog you're experiencing. Then tune the VE. Once you start approaching an AFR of 12.0:1, you can richen up the PE/BE(i suggest 1.275) and start fine tuning the VE.

You also need better timing tables. What you're running now is terrible. Run a stock timing table and modify it ONLY in areas where the MAP is greater than 105 kPa.

Beatdown Z

iTrader: (18)

Setup your Histogram with a filter like i have shown in the attached picture to see where in your timing table the engine runs when it's above 105 kPa.

tempoffroad

Thanks a ton! I will lean out both tables all the way across and work on the ve table. also I will change the timing table Im sure it does look horrible I was just trying to be extra safe I guess I got carried away.

Beatdown Z

iTrader: (18)

You also need to keep the number of byte's in your primary table below 24 for the proper logging speed. If you can get it down to 12, you will double your logging speed, and if you can bring it down to 6, you quadruple it. I have a config setup just for VE tuning with only 6 bytes in the primary table and it logs my data crazy fast compared to a 13+ byte table.

I only suggest using a table like this after you're comfortable with your timing, iats, ect...

Another pic just for the hell of it, to show you what i'm talking about.("unsupported parameter" is Lambda Error)