Yep and device ID to AA to bypass the checksum. The only issue is getting the cooling fans to work correctly. The low speed fan is controlled via the BCM so it will throw an error and leave the high speed fan on permanently. yoda69 and holden202 have the answers for a fix so hopefully they can post...

Ok, I had a look in the PCM, my prom is marked CJDN. So I guess my next step is to purchase a EPROM reader/burner and read the data off my chip, modify it to eliminate VATS, burn it back on the chip and viola, the beast should start. Sound reasonable? Cheers and thanks again for your help everyone, ...

Holden202 wrote:just for my own interest ... what pcm does vt 5ltr use, is it like the vr/vs v8 pcm or is it more like that vt v6 pcm ?

Um... I'd like to be able to answer that question but I'm not sure...

I'll have a close look when I'm up the shed tomorrow.

Andrew.

Thanks for the speedy replies everyone, So the only way to modify the program is to re-burn the PROM or to burn a new PROM? There is no connecting to the PCM to modify the program - that's only for real time logging? Thanks for the link to the XDF files. How do I know which one suits my PCM? So I ta...

G'day everyone, I've been trawling the 'net for days learning more about ECU programming but I'm having a few problems piecing the final picture together. As a bit of a background, I'm building a 1938 Wolseley street-rod with a VT Holden 5 litre V8 engine. I've only just started out and I picked up ...