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[Kevin Wood]

I know I was surprised how lean the MR2 ran in all conditions with the stock ECU - never lean of stoic, obviously, but it was stoic a lot more of the time than I expected (not anymore with my own tune, though )

Well, you can safely go quite a bit lean of stoic over most of the speed and load range if you don't have a cat. You just have a bit more of a challenge with the acceleration enrichment to keep it pleasant to drive because the slightest hint of throttle movement will bog it down unless you give it a squirt of fuel.

If you look at live data from an Omega it is running closed-loop until the pedal's not far off on the floor.

Kevin

[feeutfo]

D'oh, good point - I'm too used to dealing with wideband sensors, clearly

I keep meaning to put one of those in an LPG'ed Omega. I wonder if I'd be shocked? :-/

Interesting. I'd bet on a fair bit of leaning off needed. :-/

By that I mean seeing petrol overly rich as well. Aside from the op's issue...?

Which I'm sure if the latest set up on the kits from Tilo is followed an improvement will be found for the op. 4 hole Tank, duel feed vaporiser, and the latest grey injectors work well with the stag ecu.

[aaronjb]

Well, you can safely go quite a bit lean of stoic over most of the speed and load range if you don't have a cat. You just have a bit more of a challenge with the acceleration enrichment to keep it pleasant to drive because the slightest hint of throttle movement will bog it down unless you give it a squirt of fuel.

That's more or less how the MR2 is mapped now - low load & low RPM sees 15.5-16:1 (and it seems happy with that, any leaner and it'll struggle), cruise is 14.7-15.5:1 (depending on how fast you're cruising :oops: ) and WOT is 11.5:1 to er.. 9:1 (it's a bit rich up top!)

Anyway.. we digress from the OPs issue

[Tezray]

Ok well it's driving well on gas and cruising well but if I boot it it doesn't go so well and seems to hesitate.

Power aside though I got 25mpg from my last tank and that included messing about with the map. So now the map is in a good place I should get a touch more, i'm happy with that 

[Lazydocker]

I agree... 3mm is big enough and you could drop the pressure a little. My saloon was running at around 1 BAR and fine

There was talk, when I visited Motogas, that the nozzles could go slightly larger but it is untried and I would therefore advise against it.

Perhaps you can meet up with either Kevin or myself at some point and we could have a go at mapping it with you/cast an eye over it as we seem to be able to get it closer to spot on than any other one I've seen :-/