Vt v6 van dual fuel

[gibbo]

Ok I get it now, I didn't even think of the ecu switching the ground, I was thinking it permanent. VS gas system/ecu is quite a lot dumber than VT! This is what I have mostly worked with.

[yoda69]

Probably should have made it clearer on the diagram, but when I did it I was only doing it for me and I knew what it all meant. If you think VT is smart, should look at VX/VY, they are a quantum leap forward again controlling the FCV by the ECU directly and not via a separate LPG computer.

yoda69

[Jervies]

Lol thats all pretty good info, i should probly get around to hooking that all up my self!
Can anyone tell me about modifying the tune for an 82deg thermostat as i want to keep the heat down in the engine bay seeing as im sitting on it...

[Holden202T]

shouldn't be too much you'd need to do other than modify the thermo fan settings so it comes on earlier maybe ...

[Jervies]

I changed the lean cruise and a few other temp dependent things like spark map ect. Iv been playing around tonight just trying to tune off the millivots of the o2 sensors and went pretty well i just cant get the cruise setting right as the gas computer seams to be playing funny buggers with the o2 readings. I also worked out that my gas computer wasnt hooked up properly after i did the motor swap, no 02 input or tps so i should see some gas savings hopefully.
So how do i go about flashing this lpg spark map in? Iv fixed all the connection problems by cutting the data wire off my bcm simulator

[Jervies]

a couple of logs from yesterday and this morning

[Jervies]

thanks to charlay86 and his good work on the vt a5f xdf i can now alter the shift times on my auto, iv been practicing setting pressures and times ect so i can do a chip for my turbo6 soon. results are pretty good, consitering the box has done 160,000 and pobaly never been serviced im gettin nice hard shifts at WOT and smooth shifts when cruising. heres the bin and xdf
let me know what you think cheers

[Jervies]

was searching through the threads on here when i came accross a thread on a quad driver fault in the ecu that contolls the tcc. i noticed last night i have a quad driver 2 fault. my last trans lockup didnt work and iv just put in a new trans and still no lockup... maby the old stall was fine as im pretty sure this driver fauld could be my problem! next issue... my ecu is programed for my bcm simulator if i burn a new chip with the vats disconnected do i looses the features of the bcm?

[Jervies]

wb gas4.xdl

so iv done a log with lpg what iv noticed is with the data trace on the spark map it doesnt seam to leave the 50mgc colum at all im a little confused as to why this is?
can someone have a look and give me some pointers? cheers

[charlay86]

it means the .adx and or .xdf you are using aren't set up quite right.
try adjusting your settings so they are like this (see image) and it should work.

data tracing.png