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Reading your PCM with it installed in the truck is zero risk. Writing an OS to it with it installed in the vehicle carries moderate risk. This is...

You can look at the injector patch thread here. http://www.gearhead-efi.com/Fuel-Injection/showthread.php?6888-lt1-ee-Injector-tables There is...

2000 CHEVROLET SILVERADO OS ID: 12205612

Thanks for the interest! I'm almost done with the BB-9593-LU47 sheet, then doing the BB-9593-LU80. I'm working toward an Excel workbook that you can...

It’s my DD but I have another. Don’t have a spare but my buddy has a wrecking yard so it’s a phone call away. In the truck flashing and I made a...

Sub'd - Thanks for sharing your work! I have been playing with the data for these injectors as well, and found the below links to be very useful...

I use a spark tester that you can adjust the gap and see the actual spark. you want a blue coloured spark, an orange coloured spark is considered...

Not sure I understand the question. I used a spark tester off each spark plugs wire. The light flashed. Also the engine runs with carb cleaner...

Hello, Yes, its been done many times but I have a few questions for you. Is this your daily driver vehicle? Do you have a spare PCM upon...

Hello, Here you go . . . Rick http://www.gearhead-efi.com/Fuel-Injection/showthread.php?8629-XDF-Creation-Editing-How-To

I think you're confused. If you're trying to add a feature that does not exist in the ECM from the factory, modifying the XDF isn't going to help you...

I ordered some non angled bungs which I’ll use instead since there are no clearance issues when mounting on the collectors of these long tube G Body...

Stock engine stock injectors ls1 intake factory maf sensor no cats dual exhaust 4l60e.going into a 68 firebird.not a racer just looking for a bit of...

Aldo what is ypur definition of spark? is it orange or blue?

have you tested the pickup coil? your symptoms sound like classic intermittent pickup coil

:welcome: dave w

:welcome: dave w

Cool build. Is it drivable yet?

I like your plan to verify the distributor wring with an OHMS meter.:thumbsup: As a reference, I'm posting a picture of a GM Ignition Module. I...

Hype vs. Reality is what I think your asking. Opinions might vary, some members have more real world experience that others on the topic? The...

As stated previously I did swap the ignition module. Both the old and new module produce spark and have a clean crank signal. I just tested the NOID...

I would think just the opposite that you would want as much of the sensor exposed to the flow of exhaust.

I’ve been doing a little reading before playing with anything but I saw that I might need a different fuel pump and or regulator spring in my...

Hello, Need to know what injectors, intake, TB, is engine stock besides valvetrain, which MAF, automatic or manual, cats, exhaust setup?