I just realized that the transient fuel routine tables are either not clearly defined and not explored deep enough. I suspect that a cammed, cubed car might change the predefined evaporation matrix...

After some down time I managed to merge the 2 versions of the source code. I added the checksum improvements you have suggested.

Ported most of the function in a key shortcut. There is a side...

The boiling point lowers with lower atmospheric pressure. The only example I can think of is that you can`t boil eggs on a airplane`s high altitude since the water boils at much lower that 100*C...

Is it dumping more fuel or it is starving. IF it needs more, bumping the key several times will do the trick and should start right away on the 2nd to 4th bump.

Decided to look at lt4 calibration...

Thanks for the part numbers. Does the stock gasket works fine with the 2028?
I also investigate the matter through rockauto and made a list of 2028 interchange part numbers with different open temp...

It is the transition region of the EOIT target and could be related for sure. Maybe setting the transition to happen at higher temperatures can cure it some.

I have also experienced some...

From what I gather from experiments it is some kind of factor for graduate change of values. For example if you command a change from $20 to $40 it will slow down the change to by $01 each second. so...

The next big thing after eehack release is the controller key shortcut. It is like a pro level factory tool now. Fast seemless and easy to control anything on the fly without going in deep staring...

I think that moving injector spray time forward can compensate more for fuel robbing and change the fuel robbing dynamics, than it is temp related.
I guess when the manifold gets heat soaked, than...

It looks like a toast. Or it could be the controller. Are you running 4.2 or 4.9 bosch sensor. One of them was prone to early failures due to controller. I have 4.2 and it experienced alot of...

You still amaze me at discovering more stuff through experiments. I never thought about possible blm split by EOIT target. What you have done is move the target earlier to the actual intake valve...

The recommendation from GM is at least 4 inch of straight pipe before the maf sensor, to get reasonable air flow readings. That is for the newer style slot type of mafs but I guess it can be applied...

Another vote for the adjustent cylinder fuel robbing.
The lt4 settings are

Cylinder Multiplier
1 1.05 3 0.96
2 1.05 4 0.97
5 1.01 7 0.98
6 1.02 8 0.96

Somehow my trims closely...

Prepare to start all over with cyl trims.

I made some progress on the first cold start. Still needs some fine tunning. While experimenting it turns out that running around 20-35*C coolant at...

When I made the ports equal diameter, I got all kind of surging problems with stock individual cyl trim settings. I had to rework the trims it all the way and now #1 gets much more air and needs more...

Great experimental finds. Even though I still insist that trims are not used until the engine run flag is not set. In your case @32*C that will be engine spining above 300 rpm for 4 low res pulses....

While investigating my hard start issue I measured my fuel pressure and what a surprise. The crap adjustable aeromotive unit holds different pressure during pump priming. On a random basis it opens...

RESERVED:2B41 fdb $34BC ; prime pulse table multiplier
RESERVED:2B43 fcb $C3 ; + ; initial prime pulse set
RESERVED:2B44 ...

The lt4 bin also have a lot more fuel at startup. No idea why.

Here is printout for most of the popular combos.

Your problems with hot restart might be due to crank spark advance. I ripped the settings from different calibrations.

Interesting I am running 2 degrees at 80*C and 7* at 20*C stock. The closest...

It is exctly like that. I have nothing to add. What I mean is that you can fine tune the tables from there.

So for now I want to end the disscusion on the pw scalar since it is all clear.

The 2...

You can share the new goodies and I can try to include them in the new release. The key shortcuts are very usefull, I still haven`t had the chance to expand them to more controls.


The 2bytes...

I justflash a stock bin with the beta and evrything looks fine. There is no brick situation and the engine starts. I didn`t have the time to test functionality.
So you can safely flash with the...

Here is the first beta source.

If you have a socketed pcm and wants to be a guinea pig go ahead.
My only concerns are for some typo errors in the patch section. Otherwise I am sure you will like...

You have just found another bug in the patch related to manual transmission. It turns out that the routine that makes the switch between maf and speed density modes doesn`t run with manual bin. An...