Those who run LPG converted 2.2's

[diesel des]

To any sane person that would throw up a number of red flags.
This means they are unable to set it up so that it runs the correct AFR.
On a turbo engine especially this can be disastrous.
Bet he doesn't know what a wideband is either.

It is fully possible to make these run without any check engine lights or any other issues.

I agree. I ran Motronic and gas for years with no issues. Just needs tuned in better.

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[prj]

Just spoke to LPG guys and asked them about calibrating, and he straight away asked whether it's check engine light that comes on sometimes, and then said it's pretty much impossible to get these ECU's calibrated so it doesn't happen. Don't know how much truth is in that. But I'll have a chat with him when I go down.

To any sane person that would throw up a number of red flags.
This means they are unable to set it up so that it runs the correct AFR.
On a turbo engine especially this can be disastrous.
Bet he doesn't know what a wideband is either.

It is fully possible to make these run without any check engine lights or any other issues.

[hunker7]

Just spoke to LPG guys and asked them about calibrating, and he straight away asked whether it's check engine light that comes on sometimes, and then said it's pretty much impossible to get these ECU's calibrated so it doesn't happen. Don't know how much truth is in that. But I'll have a chat with him when I go down.

[hunker7]

Yes I keep at least quarter tank petrol for emergency and to keep the fuel pump happy. I have mine set at 40 deg c. Start of high and lower it in till it messes arround when too cold. Usually not a problem inn the summer.

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I have mine on 20 at the moment and seems fine, might increase to 25, and then when it gets colder, increase it further.

[diesel des]

Yes I keep at least quarter tank petrol for emergency and to keep the fuel pump happy. I have mine set at 40 deg c. Start of high and lower it in till it messes arround when too cold. Usually not a problem inn the summer.

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[hunker7]

Meant to ask, what reducer temperature should I set for switch-over? And I assume I need some fuel in the tank at all times as fuel pump is working constantly?

[hunker7]

It should be fine. Don't be doing any 24 hour endurance races.

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Not planning on. Couple of hours drive at the time max

[diesel des]

It should be fine. Don't be doing any 24 hour endurance races.

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[hunker7]

And how is it driving? Motronic happy yet?

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Feels very good. Boosts just fine, idle is pretty good, feels better than petrol if I'm honest. Still need to get petrol ms to stay the same when switching over, currently when running on petrol it's 3.1 and when on gas it's 2.1, so it shakes when switching back to petrol.

If I leave it as it is now, can it do any damage? I have exams coming up and final project to finish and don't have loads of time on my hands

[diesel des]

And how is it driving? Motronic happy yet?

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[hunker7]

This is how it looks like at the moment.

[diesel des]

Yep that's it. Each time it gets closer to exactly were it should be.

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[hunker7]

Ok your mixture on idle is also too rich. Bring it down some and try again.

At least the car is driving ok for you on gas now and just needs fine tuning.

After making adjustments to the modeling you should really clear the points it has gathered and reset the petrol ecu so it can learn new points with no adaption.

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Sorry meant to say on gas petrol ms is 2.5 and when I switch to petrol it jumps to 3.2.

Clear the map points? I think it asks to clear both gas/petrol map after changes are made. So when I'm done with modeling part I just reset petrol ECU so it can learn it all again?

[diesel des]

Ok your mixture on idle is also too rich. Bring it down some and try again.

At least the car is driving ok for you on gas now and just needs fine tuning.

After making adjustments to the modeling you should really clear the points it has gathered and reset the petrol ecu so it can learn new points with no adaption.

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[hunker7]

Some small amount of gas will come out at full up that's normal. You need to talk to the Lpg assessor to see if he is happy to test your car.

At light loads your Motronic runs closed loop so small changes of the gas map will not appear to do anything. But the goal is to try and get Motronic adaption to zero with no adaption limit errors.

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I'll call some places near me on Monday than and see who could get her tested

The rpm jumping is likely to be due to mixture adaption taking a while to catch up. Have you the lambda connected yet? That would help You see if it's going rich or lean when it switches.

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On gas petrol injector ms is 2.5ish and when I switch to gas it jumps to 3.2, so I just need to get them both matched and that should take care of that. I've connected lambda, but honestly that thing is all over the place on idle, can't really tell much.

Show a pic of your map now.

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I'll get that tomorrow, as it's pissing down atm