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Just a WAG. Look at the timing when it stalls out. It zeros out when you suddenly increase the throttle which makes me think that some serious knock may be occurring either from the lack of fuel,...

You really need to get a wide band O2. Your basically shooting in the dark without one.

Yes you will need a wideband O2.

I was like you at first. I was thinking what the hell do I change and how much. After months and months of reading, buying books, dvd's, I even attended The...

Do you have a wide band O2? What brand of injectors?

When changing injectors, you should expect to change:
Injector Flow Rate vs kPa
Injector Offset vs Volts (and pressure)
Short Pulse...

If the shop is reputable with a knowledgeable tuner, damn straight it will. Plus you develop a relationship with the shop and the tuner. A win-win.

I say save your money. I went to the class 3 years ago. It was ok. They teach you how to use the program more than they teach you to tune. First day was how to use the program and a few tricks....

I have to say that I am not a pro by any means, but I can tell you this.
1. Take your time.
2. Learn to setup the Scanner properly. This is the hardest part of tuning. Each vehicle is different....

I agree. We need to know what year and make the vehicle and all
modifications.

Change nothing.

Check the fuel pressure.

It's called torque management. It keeps you from breaking stuff. GM puts it in the tuning to avoid warranty work. If you ever take torque management off, you can't go back to the dealership. Well...

SME-DVD-2 on the way. Summit racing has them ready to ship!
Sherman.

Got it and trying it out this evening. Why isn't this STICKIED?

Thanks
Sherman

That's good to know. I am some what of a perfectionist and would go crazy trying to get them both to read the same.
Thanks
Sherman.

Without a doubt I am getting it! First one was superb!
Sherman.

Ok. That's cool and makes WOT tuning a sh*t ton easier than the AFR or fuel trim way.
Thanks
Sherman.

Thanks 5LE. I searched and find that thread. That thread is a wealth of info.
Thanks
Sherman

Hey Greg, Did you see what I was talking about? I figured out how to disable the DynAir. Really easy.
I have my MAF and VE table 1.00 Lambda or close to it. I started setting up for WOT tuning and...

Yes, I have a NGK AFX and have it plugged in and reading AFR with the voltage and offset good for my setup ( I think ).
I hate just guessing and "Hoping" that the AFX and the scanner are reading...

Thanks ED!!!!!!!!!!! You answered it perfectly.

Not one person knows how to check accuracy between your wideband readout and what HPT scanner shows?

Nobody?

Sounds like you have a wire pinched somewhere. Something is grounding out your injector wire harness.

I am Lambda Error tuning my Ve table. I can't seem to make all cells that I have hit equal 1.00 consistently in the Scanner. The numbers are either .97, .98, .99 error or 1.02, 1.01, 1.03, 1.04,...

GREAT THREAD!!!!!!

Wish most were like this one.

Sherman