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Sounds like I can try that out. It's basically turning the fuel injection into a computer carburetor. Of course as temps will change it way need to rich the mixture but overall a digital carb. I...

I have a 2005 Chevy Avalanche 5.3L automatic transmission. I have a Volante throttle body spacer installed and a 4" cold air intake installed as well, no other mods yet I plane to replace the factory...

Awesome thanks for the help. I will work on the spark table today and give that a shot. And next will be the idle airflow numbers. Those are real tricky, GEN 4's have the hanging idle problems if...

I am having trouble with a GEN 4 LS idle when I come to stop signs or red lights. It keeps falling on it's nose and dies most of the time. Here are a couple scans and tune that hasn't help it much....

If that is the case with these Mopars I will keep tracking my timing until spark knock then back down 4 degrees. I run 87 octane (cause the 93 is so expensive) and didn't want to push past 36 degrees...

I am continuing to increase my part throttle timing by 2? at time. I don't want to get too much spark knock.

Thanks for the tuning thread Jay@HAP, I will be setting up some more graphs next time with this. I want to run 15.2 o higher for cruising MPG, I drive 70-75 MPH for about 70 miles per day. This...

Thanks for your help! You are right, I didn't read the labels when I Disabled the sensors down stream. I should have read those more carefully. So the computer will always make it 14.64:1 all the...

I am having trouble figuring out how to tune a Mopar vehicle. I have been tuning GM GEN III and GEN IV and have that down. I am looking to tweek the tune in my 2005 Jeep Grand Cherokee 2wd 4.7L...

I have a 2007 Chevy Trailblazer LS 5.3Liter. I am having problems with HOT STARTING. My engine is all stock except for my camshaft (LIFT .561 I, .587 E)(OVERLAP 3.0 deg)(DURATION 272 I, 284 E) & KN...