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Very interested in this Scott - any more details?

Thanks Bill,

I've got this sorted now - this feature is so neat, why didn't I enable this earlier! :doh:

Gloucester, UK

Holden VX HSV GTS

What do I need to do to licence the 1BAR MAF RTT operating system (2002 LS1)?

I believe it works like this...

After the fuelling trims have been reset, the PCM needs to re-acquire a reasonably sized set of trim data so that statistically, the trims represent a large enough...

Boys,

I've discovered the reason why my changes to the NBO2 switching points were having no effect...

I was still in the "learning period" following a reset on my fuel trims. :doh: Although...

Take your WB out of the equation by logging a ground free fixed voltage with your HPT interface (see my post in the "w/b problems" thread).

If the EIO Input 1 is logging the wrong voltage try...

Disconnect your WB from the interface and connect your HPT input to a 1.5V dry cell battery (don't use a rechargable for this since they can deliver seriously large currents if you get them shorted)...

I didn't get too detailed at this time - I just wanted a quick test to see if I could introduce a step change in the fuelling so I simply "added" -200mV to B1 & B2 for all air flows.

Thanks 5LE, have just read your thread. I'm a bit puzzled why my mods to my switch points don't seem to be affecting my fuelling since I'm running a Gen3 in the HSV, not Gen4 as you are? :shrug:
...

Thanks Guys - apologies for missing the earlier posts 5LE. I’ve been playing with the NB switch points some more and I can clearly see an offset being introduced when I log the O2 mV, but this...

I’ve recently got my LC-1 installed in addition to my stock NBs (which are still feeding the PCM) but I’m seeing a 0.6 difference between measured WB and Closed Loop Commanded AFR and need some...

Hi All, Paul from Gloucester, UK with a 2002 HSV GTS.