As above

Since i've got the lpg working, the car seems to be running a little hot ( around 99 degree's ) on a run.

Before it never went above 97.

Anything to do with the gas or should I be looking for something else ?
I have checked all water pipes, everything ok / no air locks  :)

97 is high anyway surely?

IME LPG cars do run fractionally hotter during the summer and cooler during the winter. As long as it's stable it should be OK... Mine is getting too hot, hence the new rad

chrisgixer wrote on 22. Aug 2011 at 22:08:

97 is high anyway surely?

It's always sat around the 97 mark with the air con off.
Whether sat in trafic or when I get my boot down  :-/

Now its seems a little bit hotter.
I noticed it when I was away last week but dismissed it because I had a full load and a roof box on top.
I've done another 300 miles over the last few days ( without the box ) but it is still around the 99 mark when sat in trafic or during a run.
I've checked the fans. No problem there  :y

Not noticed any difference TBH.

Not going lean at any point, is it?

Lazydocker wrote on 22. Aug 2011 at 22:09:

IME LPG cars do run fractionally hotter during the summer and cooler during the winter. As long as it's stable it should be OK... Mine is getting too hot, hence the new rad

Might give it a good flush out before winter.

After the fun i've had with dodgy icv's and leaking pipes, there won't be much antifreeze in there anyway  :-/

Am I right in thinking that somebody recomended "dishwasher" tablets in the water bottle does the job ?

TheBoy wrote on 22. Aug 2011 at 22:19:

Not noticed any difference TBH. Not going lean at any point, is it?

Good point  ::)

The gas "green line" is a little low at the top end of the lpg map.
Not enough to cause the gas to cut out under full bore acceleration or anything.
I've left it because I didn't think it would cause any imediate problems.  :-/

TheBoy wrote on 22. Aug 2011 at 22:19:

Not noticed any difference TBH.

Nor me.  :-/

tigers_gonads wrote on 22. Aug 2011 at 22:24:

TheBoy wrote on 22. Aug 2011 at 22:19: Not noticed any difference TBH. Not going lean at any point, is it? Good point  ::) The gas "green line" is a little low at the top end of the lpg map. Not enough to cause the gas to cut out under full bore acceleration or anything. I've left it because I didn't think it would cause any imediate problems.  :-/

Lamdas showing signs of going lean, if so, you need to resolve that immediately

TheBoy wrote on 22. Aug 2011 at 22:29:

tigers_gonads wrote on 22. Aug 2011 at 22:24: TheBoy wrote on 22. Aug 2011 at 22:19: Not noticed any difference TBH. Not going lean at any point, is it? Good point  ::) The gas "green line" is a little low at the top end of the lpg map. Not enough to cause the gas to cut out under full bore acceleration or anything. I've left it because I didn't think it would cause any imediate problems.  :-/ Lamdas showing signs of going lean, if so, you need to resolve that immediately

From what I remember when mapping,  the lamda's value " when warmed through" was around 1.
This seamed to jump up a little when I was doing full bore runs on gas while mapping.
I thought they was increaseing the mixture because the gas map was slightly down  :-/

Am I looking at this right or am I talking boll*cks  ;D ;D

The lambda outputs should be solid at 0.7-1v when at wide open throttle. If they flick up and down at all, add a little more LPG at that point in the map. The engine will be open loop when accelerating hard, so no adjustment is happening as a result of the lambda output, and matching the curves in the LPG map is less important than making sure it doesn't go lean.

Having said that, idling in traffic, or cruising, it can be as lean as it likes and it won't affect the temperature of the coolant, so I would be checking that the cooling system has bled itself properly (give the top hose a good squeeze and check if doesn't burp any air out.

Perhaps give it a flush in case some crud has shifted round the system when it was worked on.

Are the fans starting as they should when sitting in traffic?

Is the temperature normal when cruising rather than in traffic or is it hot then too?

Kevin Wood wrote on 22. Aug 2011 at 22:45:

The lambda outputs should be solid at 0.7-1v when at wide open throttle. If they flick up and down at all, add a little more LPG at that point in the map. The engine will be open loop when accelerating hard, so no adjustment is happening as a result of the lambda output, and matching the curves in the LPG map is less important than making sure it doesn't go lean. Having said that, idling in traffic, or cruising, it can be as lean as it likes and it won't affect the temperature of the coolant, so I would be checking that the cooling system has bled itself properly (give the top hose a good squeeze and check if doesn't burp any air out. Perhaps give it a flush in case some crud has shifted round the system when it was worked on. Are the fans starting as they should when sitting in traffic? Is the temperature normal when cruising rather than in traffic or is it hot then too?

What should be the lambda readings at idle be ?

There is a good chance it may be dirty in there.

Pretty sure their is no air left in there.

Fans start in traffic as normal.

Car temp seems as before. Just a little hotter in all driving conditions  :-/

In all conditions other than a stone cold engine or flat out acceleration the lambda signals should be cycling up and down.

I don't suppose the temperature sensor wire has been knocked loose so it's not making a good connection? It's on the coolant bridge. Can't remember if that causes it to read low or high, though. Probably low, so probably not the issue. :-/

I'll have a play about in morning and take some readings  :y
Now I know what to look for  :)

Thanks all  :y