Hi i am after a hptuners MVPI Pro tuning cable preferably with two GM credits left or even no credits left that i can still buy credits for.

Must be a pro unit .

Text or call thanks.

0410774141

Sorry mate it is a vx dash with chip on top not bottom like the vt i confused myself.
You will need a NEC mcu type programmer.
Vx clusters are a pain.
i would look for a vt s2 3 window if you can find a cheap enough one. your programmer can do those eproms.
Or find a NEC mcu type programmer.

You're looking at the front of the board check the back side to see what eprom it has.

I don't know what happened on that read, i read it a few times and they compared all the same.read with the right chip selected. Once i wrote the new calc to it & it was wrong i did a new calc on what i put in it & it worked perfect so i don't know what happened. I also tried some 93c56 chip...

If you want 0 kms.. Add 1440 to the desired value.. 1440+0 = 1440 Divide by 16... Decimal = 90, hex = 5A Minus that from 0xFFFF... 0xFFFF - 0x005A = 0xFFA5) So enter FFA5 into all 16 spots Easy as. Thanks that worked. Weird thing is i tried that calculation first, powered it up & it read 23040 ...

FFFF – FA5F = 5A0 then convert to decimal 1440 multiply by 16 = 23040 & minus 1440 = 21600

Ok i tried FA5F in all 16 when i powered it up it read 21600
So how did you do the calculation to get the hex value FA5F
FA5F bin attached
thanks.

I powered them up to get the ks first then unsoldered them & read them in my programmer
changed the value to BCA3 put the chip back on then powered it up again & it read 274464 not 000000 which was what i was aiming for.
where am i going wrong?

Can someone show me how to calculate this I started with 137235 tried to 0 the ks and ended up with 274464 this is what i did 137235+137235+1440 =255910 / 16 = 17244 hex value 435C FFFF - 435C = BCA3 Should i have taken 1000000 - 137235 = 862765 difference then added 1440 = 864205 /16 = 54012 hex va...

The attached bin is from a single vt But i have no info on it as i got it from the wreckers for parts. I have 3 triple window dashes & 1 more single that i will get reads from. Im just waiting on some sockets so i can solder them on to one of each for test setups. So was the odo location $0 up t...