Here is the wiring schematics for the 2006 savanna van and the 2006 LBZ. i trying to convert my tune to a stock lbz but when this is done the ignition is dead, i mena nothing happens. now that i have the schematics i can see why, so i changed the pin c2 32 to c1 71 (this was before i recieved the schematics, i was just comparing ecm plug configs) and when i turned the iginition to the run position i could hear the starter do a one click thing. turnign the ignition to start did nothing again. i then reverted my c2 32 pin back and reloaded my van tune and back to the original config with no problems.

looking at the schematics if i took d-gn 1433 on the van schematic and ran it to ground would this change it?

What circuit is the electric fuel pump on ? Does it share the ignition ? I don't see the schematic attached. I'm just guessing that since the van has the pump and p/u doesn't ,that ignition/fuel pump circuit isn't activated on lbz program , but is on van program . Is the lbz program vin locked ? Just throwing that out there , I am just offering a road to look at . What are you trying to do ? Doesn't EFI Live get the results you are looking for ? Sorry if I answered your questions with questions . Just curious.

sorry, i was in such a hurry i forgot to insert the schematics. as per the fuel pump it has nothing to do with it it is just the cranking circuit which is not allowing the van engines to not start when a lbz program is installed. the hard wiring c2 32 has to be switch to c1 71, but i am still missing something else

http://members.shaw.ca/prs1/starting%20van.jpg
http://members.shaw.ca/prs1/starting%20lbz.jpg

http://members.shaw.ca/prs1/starting%20lbz.jpg

here are the drwgs again.


http://members.shaw.ca/prs1/starting%20van.jpg
http://members.shaw.ca/prs1/starting%20lbz.jpg

I cannot believe none of you van owners have any input into this thread. do you realize how this will wake up your engines! if i can make this work you will all benefit.

no input, but I'm watching

I can't help on what your doing either.
I have tried the LBZ tune in the vans and it doesn't work like it should for some reason.

Good thread, hope to bring it back to life.

btw i did complete this conversion to my van engine is now a lbz. i can now load any lbz tune to my ecm.

So how did you do it?

you have to do some hardwiring changes for the ecm and starting circuit

you have to do some hardwiring changes for the ecm and starting circuit

Were you able to just swap out the position of some pins or did you have to cut and splice?