Northstar Tuning - Page 6

AJxtcman · #76 (**permalink**) 04-25-07, 11:20 PM

YES. Positively 100%

CadillacSTS2003 · #77 (**permalink**) 04-25-07, 11:47 PM

ok so what exactly will you do to the pcm what will be changed and what will i gain?
also where are you located?

AJxtcman · #78 (**permalink**) 04-26-07, 07:27 AM

I will remove your speed limiter, add just a little more fuel at WOT, increase trans pressures just slightly for quicker shift times. I am working on a very small and very easy to install add on PWM box to keep the T/C from controling Torque managment. This will have an on and off switch. I have one on paper and know the box I will use, but I have not had the time to hook it up and run it. Then it may not work and I would be back to step one. I have the correct PWM rate and Hertz. This can be added in line. it will work similar to this, but that work on the T/C module not the PCM.
http://www.lingenfelter.com/store/lpe-pwm-001.html

AJxtcman · #79 (**permalink**) 04-26-07, 07:43 AM

urbanski · #80 (**permalink**) 04-26-07, 07:47 AM

tech 2 isnt tuning software or hardware. its a scanner. why cant a tech 2 "tune" a cts-v for example, but you use it to tune a N*? i dont get it.

AJxtcman · #81 (**permalink**) 04-26-07, 08:05 AM

Quote:

Originally Posted by urbanski

tech 2 isnt tuning software or hardware. its a scanner. why cant a tech 2 "tune" a cts-v for example, but you use it to tune a N*? i dont get it.

The Tech2 is being used to transfer files only. First the files are altered the repakaged abd sent to the tech2 in a mailbox type file. The Tech2 then send the files to the Module in question. This is a very safe way to recalibrate it is a tried and proven method in use by GM since 94 or 95. Yes it was sent out before the cars hit the show rooms.

stbtt · #82 (**permalink**) 04-26-07, 08:55 AM

can you edit the following tables? power enrichment and pe delays high and low spark tables and main and backup Volumetric Efficiency and many others that are used for tuning

and by edit i mean can you put any number you want in any cell in these tables

jadcock · #83 (**permalink**) 04-26-07, 09:55 AM

Quote:

Originally Posted by AJxtcman

I will remove your speed limiter, add just a little more fuel at WOT, increase trans pressures just slightly for quicker shift times....

AJ, isn't more fuel at WOT going to hurt power? I always understood the GM engineers intentionally ran the PE a little rich to save the pistons...but leaner would gain more power. Why would you enrichen the PE even more...won't that hurt slightly?

AJxtcman · #84 (**permalink**) 04-26-07, 11:10 AM

Quote:

Originally Posted by stbtt

can you edit the following tables? power enrichment and pe delays high and low spark tables and main and backup Volumetric Efficiency and many others that are used for tuning

and by edit i mean can you put any number you want in any cell in these tables

I am working on a list by comparing programs, so yes and no. Soon it will be all yes.
The tables on the program I have will not work without the correct list of Definitions. The definitions are my current project. I am making progress.

AJxtcman · #85 (**permalink**) 04-26-07, 11:18 AM

Quote:

Originally Posted by jadcock

AJ, isn't more fuel at WOT going to hurt power? I always understood the GM engineers intentionally ran the PE a little rich to save the pistons...but leaner would gain more power. Why would you enrichen the PE even more...won't that hurt slightly?

How many programs are written for 2000 Northstars?
lets break it down.
2000 E car ETC
2000 E car ESC
2000 KD
2000 KE
2000 KF
2000 KS
2000 KY
2000 KD limo
2000 KE limo
2000 KF limo
2000 Ks limo
2000 KY limo
2000 Mexico KD KE KF KS KY
2000 Japan KD KE KF KY KS
2000 Korean KD KE KF KY KS
2000 German or euro cars same list
I have seen Italian cars and south African cars
2000 Saudi and Kuwait cars.
I can go on, but I think you understand not every program is the same.

That is why the fuel settings can be changed. What if I set it to the best on I find and the best Throttle ramp I find. This would be for the particular VIN Y or 9

jadcock · #86 (**permalink**) 04-26-07, 01:08 PM

That didn't answer my question. We have US cars. So whatever they run in Korea doesn't matter to us. Understanding that the GM engineers were already conservative with their PE mode (ie, "too rich" to protect the engine), won't adding more fuel be counter-productive?

CadillacSTS2003 · #87 (**permalink**) 04-26-07, 01:39 PM

and when you dl those programs though, they have the OTHER cars vin in them
dling that programming into another car may conflict with the several other modules and computers on the car...

AJxtcman · #88 (**permalink**) 04-26-07, 02:36 PM

Quote:

Originally Posted by CadillacETC1997

and when you dl those programs though, they have the OTHER cars vin in them
dling that programming into another car may conflict with the several other modules and computers on the car...

That is not what I am working on. I have found a way to decipher the codes by looking at multiple programs. I do not have full access, but I am on my way. I may start with a Korean or a North American car and adjust what I have figured out. I an still working on other Definition files. You can change VIN's per modules as long as it can be setup for the current optional modules.

AJxtcman · #89 (**permalink**) 04-26-07, 02:48 PM

Quote:

Originally Posted by jadcock

That didn't answer my question. We have US cars. So whatever they run in Korea doesn't matter to us. Understanding that the GM engineers were already conservative with their PE mode (ie, "too rich" to protect the engine), won't adding more fuel be counter-productive?

Have you ever looked at a Tech2?
Do you have any knowledge of fuel trim?
Do you understand Fuel that we have today is different BY FEDERAL LAW?
We have more oxygenated fuel additives today then 3 years ago.
Do you under stand how that effects fuel trim?
Everyone in the united states has reformulated gas!!!!
The area I am in has "reformulated gas". Just say it was standard J234 five years ago. Now we have J535 and everyone else has J234.
We see cars come in after a tank fill and a switch off from summer to winter or the other way around and it set a fuel trim code. It is not common, but we see then. We will look at fuel trim and it is not uncommon to +20%. Ten years ago +20% ment you have a probelm. I use a Korean program.

jadcock · #90 (**permalink**) 04-26-07, 03:08 PM

I guess I never will get a straight answer...

All I asked was, "will adding more fuel cause a decrease in power". If your answer is, "no, because today's gas is reformulated and has more additives than it used to and it takes more of today's gas to make the same power than it did on yesterday's gas, and so adding more fuel will restore the power that was lost because of the change in formulation", that's all ya gotta say...