Hey, also, which O2 sensor should I use? 4.3 has 3 wires. The 5.7 has 1 wire.

OK. I think these are the files I need. Anything look out of place to you. I should have my burner and chips in a day or two.

$42 1227747 v5.9.3.xdf.... $42-1227747-v5.2.adx..... A033.ads......

OK. I think these are the files I need. Anything look out of place to you. I should have my burner and chips in a day or two.

$42 1227747 v5.9.3.xdf.... $42-1227747-v5.2.adx..... A033.ads......

Cool. I've been looking for something like this. I hate asking stupid questions... Thanks.

Looking at the link for the definition files and the PROM chip files, I'm not sure what to click on.

Well. I'm ordering the BURN2, 2 of the chips you recommended and the G1 adapter. How do I know what minor changes to make?

Cool. The harness looks like it should plug right in. Will I still need the G1 memory adapter and some blank chips or do I need something different now? Is this it?...

Hey. I have the harness and computer from a 93 Astro van that was tbi. The ecu is16168625 BFMY. This harness looks almost identical to my 94. And it has both injectors. What do you think?

How many knock sensors are there. I thought I saw two, a diagram shows three, and the auto parts store says their book shows there is only one...

I have the knock sensor that came with the v8. I also have the 1227747 computer that came with the engine. Will that have the memcal I need in it?

OK. I have my harness and computer from my van laying here. If I use the wires from the linear EGR valve for a the 2nd injector, then when I reprogram the computer, I tell it what to use those pins...

Is there a diagram or something showing what pin controls what?

Ya I checked into the premade harness and they are spendy.. So where should I start? I have my ECU and harness out.

Thanks a lot for the info. I finally feel like I'm headed in the right...

My 94 Astro had a 4.3 vortec in it. Totally different injection system.

I'm putting a 91 350 tbi into my 94 vortec astro van. I need help with the engine wiring. What computer do I use and which wiring harness?
ANY help would be great. Thanks

I'm putting a 91 350 tbi into my 94 vortec astro van. I need help with the engine wiring. What computer do I use and which wiring harness?
ANY help would be great. Thanks