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Going to restart this... I ask well am doing this swap and am getting -37 at all times.

I have all the itc adapter fittings and the wiring appears to have the proper flow

Fast4.7 I’ve pm’d you.

so after a 6 minute watch im now a you tube certified segment swapper.

fast4.7 you have made me and my van happy again. did complete segment swap of everything and bammmm cyl 7 has life again.
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if only I knew what i was doing enough to do that. ha!

ill do some video searching to educate my self.

Unfortunately I would need to licence that to use it.

Fast I’ll try that later this eve. But in my past try’s I was never able to make the pcm right again unless i get it refreshed with Gm software

To confirm. Write all?

Also ……..fast4.7. It’s 2wd

Sport seems you are correct it is down.

virgin is express
stock is safari

I do. I’m just not computer savvy to do the behind the scenes stuff and be confident. I fix cars for a living but never programmed computers

I will post the virgin file again along with the first...

Just the Prndl doesn?t work. There is also a code for evap vent solenoid control with the stock express file. Which is weird as there are pinned the same on both vans. I can deal with that later.
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Sorry fresh 02 express 5.7 4l60e

I programmed my own vin in it with hp. That’s why vin is v6

The virgin file was from a fresh ecm loaded at the dealer. Luckily I can walk in the back door. So no charge other then a case of beer l!

I would have to pay for 2 credits to use that file right?...

It does still work. Just cost more as you have to pay per vin number now instead of buying access for a time period

As a note the virgin file is pulled right from the factory fresh expressing programming.

I seen that, I adjusted that with no change in results.

I’m going to take the computer back and do a total reset back to where it’s running proper as an express van. Then I will need to enlist...

This is definitely a tune issue. I have plenty of known good parts and have swapped everything and triple checked wiring to make sure I’m not the issue. With the factory fresh computer I was good.

My feelings are that as well.
On the maf note. I’m using 3.5” tubing with a newer v8 card style.

I’m currently just trying to get a good running fully functioning base line. Will definitely...

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I have tried both ways with no difference. I will post tunes this evening

Good day all sorry if this is in the wrong area and I know I?m 10 years behind on this.

I have an L31 swapped in my 02 Astro. It?s from an o2 express so should be easy peasy. But it has been farm...

Good day all, sorry if this is in the wrong location or it has been answered before...

I am currently swaping my 2002 astro to a 2002 express 1500 5.7l31.

I have read that i can leave the...

I?m new and haven?t a clue what I?m doing. I have keen a tech for 20 years but this is a whole new ball game. Looking for help to get the best of both worlds hp/mpg. An help would be appreciated. If...