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[Lazydocker]

Still think it's the stat and it makes me think I need to sort mine sooner rather than later

We could do some back to back runs Sunday am and compare yours vs mine if you like?

[Kevin Wood]

The thermostat looks like it is the prime suspect 

I'm not convinced.. Unless the vapouriser (different to mine) is a lot less efficient at getting heat into the gas.

[Lazydocker]

The thermostat looks like it is the prime suspect 

I'm not convinced.. Unless the vapouriser (different to mine) is a lot less efficient at getting heat into the gas.

It does seem strange... I know my car is overcooling but it still switches over to LPG and runs fine at 30C (I think)

Thinking about it... That Vap has been out since the first fit and temp sensor re-wired... I wonder...

[Kevin Wood]

It is also mounted with the coolant feeds at the bottom, so I can see that it might be prone to airlocking, and it would be unlikely to fill completely with coolant. Then again, guessing you and theboy both have exactly the same setup without any issues?

[TheBoy]

It is also mounted with the coolant feeds at the bottom, so I can see that it might be prone to airlocking, and it would be unlikely to fill completely with coolant. Then again, guessing you and theboy both have exactly the same setup without any issues?

I've purposely staying out of this because I have an cold idle/stall problem on my Omega with the same setup (TBE), so I think my experiences would confuse the issue.

Beyond the cold idle problem, mine behaves as you would expect, except the gauge overshoots as it warms up, then drops down as the stat opens, then goes to where it should. Probably slightly slow to open the stat.

Idle problem is known about, that Cripple bloke has some new nozzles for me, as 2.5mm is WAAAAYYY to big for this setup 

[Lazydocker]

It is also mounted with the coolant feeds at the bottom, so I can see that it might be prone to airlocking, and it would be unlikely to fill completely with coolant. Then again, guessing you and theboy both have exactly the same setup without any issues?

I've purposely staying out of this because I have an cold idle/stall problem on my Omega with the same setup (TBE), so I think my experiences would confuse the issue.

Beyond the cold idle problem, mine behaves as you would expect, except the gauge overshoots as it warms up, then drops down as the stat opens, then goes to where it should. Probably slightly slow to open the stat.

Idle problem is known about, that Cripple bloke has some new nozzles for me, as 2.5mm is WAAAAYYY to big for this setup 

Oh yes... Must put them in the car

I have the same vap setup and (known stat issue aside ) mine doesn't seem to drop temp too much

Mind you... I had a load of missfire codes this morning

[feeutfo]

Well, I find if I leave the car to warm up on frosty mornings before I get in it, I don't have a problem.

[Kevin Wood]

Needs some live data from the LPG system to see what's going on when it's playing up, IMHO.

[feeutfo]

Changed temp sensor setting to one the same as Lazydockers. Now reads a figure about 40c higher, and similar to engine temp.

No idea if that makes any odds or if the software will react differently to a higher figure, but I'm going to try it on the new setting for a couple of days.

Obviously the exceptionally cold weather has no baring on this at all.

[Kevin Wood]

Ahh, well, if the sensor was telling us porkie pies...

Not sure it will help that much, as I think that temperature is only used for switchover criteria. Don't suppose the vapour temperature sensor is wrong too?

[feeutfo]

It would explain the apparent difference between vap and coolent temp though, and although it did dip on wot at similar speeds, it's was nowhere near as close to switch over point as we might have thought.

So might dispell the air lock theory.... But not the rough running...?

[feeutfo]

Nope, that made bog all difference.
Still plays up badly between 65 and 80c engine temp.

[Lazydocker]

Nope, that made bog all difference.
Still plays up badly between 65 and 80c engine temp.

With climate panel on today?

Try without tomorrow as it behaved yesterday with it off

Very curious though as there was nothing obviously wrong

[feeutfo]

Nope, that made bog all difference.
Still plays up badly between 65 and 80c engine temp.

With climate panel on today?

Try without tomorrow as it behaved yesterday with it off

Very curious though as there was nothing obviously wrong

Set to 27 from the off.

See what the weather is like in the morning.

[Andy H]

Nope, that made bog all difference.
Still plays up badly between 65 and 80c engine temp.

With climate panel on today?

Try without tomorrow as it behaved yesterday with it off

Very curious though as there was nothing obviously wrong

If it worked OK with climate turned off (and if climate 'off' means that the HBV switches to bypass the heater matrix) then that points to resistance from the heater matrix causing reduced flow IMO.