Wideband VE learn vs normal learn

[V8hilux]

So does the wideband ve learn adjust the ve table directly or does it have other way like the blm and int's of the normal learn.

If I continue driving and allow the normal learn to fix things... does that mean if i disconect my battery the computer will forget everything? and will have to learn again?

I'm just trying to figure out wether to let the blm and int do the learning or let the wideband ve learn do it?

[muttley383]

I think you will find that it will be quicker if you compare your wideband O2 results with your target AFR's. Then work out the ve table adjustment from there.


Follow the basic tuning guide on this site.

[V8hilux]

Yeah the ve table is getting closer each time i adjust it. just not sure wether to turn the wideband ve learn on or not.
Is it supposed to stay on or doesn't anyone use it?

[VL400]

Follow the advise you have been given numerous times and forget about VE learn until you have it closer - change the VE table yourself. It is not a magic fix it function.

Your IAC is not working still, might wanna fix it. You certainly have some high vacuum at idle too At around the 7 minute mark is that WOT? TPS is 100% but MAP is 47kPa....

[V8hilux]

The problem is I don't really know what a good tuned car log should look like.

How close do i need to get the ve table? some cells are hard to hit and when i hold it flat I run out of road.lol. I'm not sure about the low map reading. on my tunerpro dash, when i held it flat for a few seconds the map went up to 90 odd.

The wide band jumping around, spark jumping about... does someone have a log of a drive (tuned) so i could have a look at and see what I'm aiming for.
I mean how steady should the wideband read and how steady and smooth should the spark be etc, and what the idle log should look like.

What is a normal idle vacume? you said mine looks high, is that good or bad? I'm running a fairly small cam in it for the low end torque. I notice my brakes work better now than before the rebuild and theres more power up the hill, holds it better compared to when the bigger cam was in.

I'm going to go for another drive tomorrow and do another tweek on the ve table.

[V8hilux]

My speed sensor setting was on 1250 and the 2 bar map was set so maybe your computer sees it different than mine.. not sure. I can only get 90kpa at full throttle, is that normal for being 800metres up in the air?

[V8hilux]

lol. you must have been seeing 20kpa at idle lol.

nah, she sits on around 42 or so at idle.

[VL400]

Yeah was using 1 bar ADX, thought you had converted back to NA and 1 bar sensor, so all good if still 2 bar sensor

When the wideband is close to the target AFR under all steady state conditions your tune is getting there, then its cold start, AE .... etc. You dont need to hit all cells, just follow the trend of the table with the cells you dont hit very often

[V8hilux]

Even as it is, I've got more power now than the old girl ever had, I'm still using the two bar map so that's fine.

I'll try to get the tcc going tomorrow, it needs it or the tranny gets hot and it's just a fresh tranny so don't want to cook it. I have a temp sender in the cooler line so i can keep an eye on it.

I think the spark is jumping around because when I look at the spark table, there is 30's sitting right next to 20's and things like that so i'd say it's jumping around between em, I did a google search of timing maps in the pictures section and all of the timing maps i saw all looked linear from top to bottom and left to right.

My map is nothing like any i saw on google images. but someone said it is just a standard holden timing map.

[delcowizzid]

yeah its standard 304 spark map wont be that great for a cammed 383 but will run ok you need a driver so you can just watch the laptop and note map and rpm v's tps % to adjust timing so you have the least tps and best vacuam .on a v6 adding 2 degrees of timing can make cruise jump from 40 -50 kpa from looseing torque its hard to find a good driver out of all my customers ive only found 1 person who makes tuning easy LOL and it makes mapping an ecu fast and painless its good when they know to say yip i just had to lift off the gas a bit to keep at that speed you know you just gained some torque without even looking at tps LOL. its all trial and error 1 change at a time slowly does it and you will get a nice smooth running engine in the end