I have a Turbo-Link but as yet I have not been able to understand everything the data is trying to tell me. I have used the "help" function in the program but my learning curve is slow. Is anyone interested in helping me understand what my last 1/4 mile run told me?
Norm
Did anyone ever help you out on this?
Dean
No offers yet!
Norm
I will try. I know just enough to be dangerous ;-)
I read about what other people were saying about tuning, but I still couldn't see "the forest for the trees". Finally, I printed out the t-link manual and I focused on section 8, "ECM Information".
First, let me say that these are my opinions, so if someone else wants to chime in and say something else, that is fine with me.
The important information can be found in the quick reference guide of this site:
http://www.gnttype.org/maint/quickref.html
Print it out. Focus on the "ECM sensor readings". O2 Voltage, TPS Throttle Position Sensor, MAF Mass Air Flow, INT Integrator, BLM Block Learn, LV8 Filtered Load Variable,
IAC Idle Air Control, Knock Retard.
I just went through them one at a time. Changing what I could, when I could.
For example, O2 voltage. Lets say your O2's are at 850. According to the afforementioned quick reference guide, you should be in the range of 760 - 800. So, 850 means you are running RICH.
To start, you can do one of two things:
1. If you have no knock, you can up the boost a tad. If you still have no knock, check your O2's again. If they are within the range of 760-800, then you are good. If you DO get knock, try turning both the boost and the fuel pressure down.
2. If you do have knock, try turning down the fuel pressure. If you now have no knock, check your O2's again. If they are within the range of 760-800, then you are good.
So, for O2's, if you are RICH, you can add boost or subtract FP. If you are lean, you can subtract boost or add FP.
Everything is like a slidding scale with boost and FP going up and down. But you can have knock running lean or rich.
Next, you can work on TPS voltage. This site has information on what the numbers should be, and how to change them.
Next, just keep working on each part until all the numbers are within the recommended rages.
Hope this helps. I also hope I am right...;-)
You can e-mail it/them to me and I'll take a look when I can.
Time is limited though... I still have to finish going through Jay's DS files. I haven't forgotten about you Jay, but family deaths, family injuries, and back to school have kept me rather busy! Still haven't gone racing this year. :-(
Dean
Thanks, Dean, thanks, Shawn. I will take a look at the website, Shawn and I will email a couple of my latest runs at the strip to you Dean.
Thanks.
Norm