Thread: Bee-utey help please pics included

missing words are "stabilise (engine speed) to 2700 - 3300 rpm (at no load)"

set the reducer to 1.4 bar (pic 4)

set the reducer temp for changeover to 40C

you have a 20% difference in injection time between banks 1 & 2, run the prtrol for a while and see if it evens out.

Originally Posted by bee utey

missing words are "stabilise (engine speed) to 2700 - 3300 rpm (at no load)"

set the reducer to 1.4 bar (pic 4)

set the reducer temp for changeover to 40C

you have a 20% difference in injection time between banks 1 & 2, run the prtrol for a while and see if it evens out.

I found today, the right hand bank gas supply hose to injectors had a very bad kink, it was adversly choked gas supply to those injectors on a bank.

Hi,

I have a very similar settings on my 2001 RR Thor engine currently, but still fighting: when hardly accelerating, the ECU switch back to petrol ( another issue is, that there is too big difference between petrol and LPG fuel consumption, but I would like to fine tune it later, because I am afraid to run on lean mix ... )

here are the pics about the settings:

change_over_aulro.jpg

map.jpg

modify_carb.jpg

I saw, that I have lower pressure on reducer, only 0.95 bar instead of 1.1 ( or 1.4 as suggested), and the timing difference between petrol and lpg is a bit higher. the map is a result of autocalibration.
Should I adjust the pressure on reducer? could be the big timing difference because of this?
Roverlord, would be possible to post your current settings?

thanks

(as you can see, the o2 sensors are not in use, I am using one reducer and also one filter with two output hose )

Originally Posted by pooh961

Hi,

I have a very similar settings on my 2001 RR Thor engine currently, but still fighting1) when hardly accelerating, the ECU switch back to petrol ( another issue is, that there is too big difference between petrol and LPG fuel consumption, but I would like to fine tune it later, because I am afraid to run on lean mix ... )

here are the pics about the settings:

change_over_aulro.jpg

map.jpg

modify_carb.jpg

I saw, that I have lower pressure on reducer, only 0.95 bar instead of 1.1 ( or 1.4 as suggested), and the timing difference between petrol and lpg is a bit higher. the map is a result of autocalibration.
Should I adjust the pressure on reducer? could be the big timing difference because of this?
Roverlord, would be possible to post your current settings?

thanks

(2) (as you can see, the o2 sensors are not in use, I am using one reducer and also one filter with two output hose )

(1) If your LPG is switching to petrol under load I suggest you watch the pressure on screen as you (or your driver) accelerate. I see the regulator's (=reducer's) actual gas pressure is well below the program setting, at 0.78 bar instead of the required 0.95 bar. Adjusting the regulator to match or exceed the required pressure may solve your problem. Then you may need to autoclaibrate again or adjust the map table.

(2) Your O2 sensors are still connected to the vehicle ECU? The screen just shows that they are not connected to the LPG ECU. In any case the O2 output is only for diagnosis, not for self tuning. The vehicle ECU is still in charge of changing injector times to match the lambda point at low load. If you wish to see the O2 sensor values on screen just connect the purple wires of the LPG ECU. In any case, reading the change in petrol injector time as you change from petrol to gas and back again will tell you how much your calibration is wrong by. At a steady load the petrol time should change by less than 5% as you change fuels.

Excuse me.
What diagnostic tool are you Blokes using plugged into the gas thingy ?

Our Bitch is also on gas which stopped working.
Been told that therte is no one in Mackay with diagnostic tool to check it.

I know nothing about what we have and this is the first question on this subject with perhaps the idea to get it sorted.
With fuel tax going up I might be converted.

Ta.

Originally Posted by olbod

Excuse me.
What diagnostic tool are you Blokes using plugged into the gas thingy ?

Our Bitch is also on gas which stopped working.
Been told that therte is no one in Mackay with diagnostic tool to check it.

I know nothing about what we have and this is the first question on this subject with perhaps the idea to get it sorted.
With fuel tax going up I might be converted.

Ta.

We are using software that comes with the lpg system and have a plug from the LPG ECU to a USB on Laptop. It is for injected gas systems only.

Originally Posted by pooh961

Hi,

I have a very similar settings on my 2001 RR Thor engine currently, but still fighting: when hardly accelerating, the ECU switch back to petrol ( another issue is, that there is too big difference between petrol and LPG fuel consumption, but I would like to fine tune it later, because I am afraid to run on lean mix ... )

here are the pics about the settings:

change_over_aulro.jpg

map.jpg

modify_carb.jpg

I saw, that I have lower pressure on reducer, only 0.95 bar instead of 1.1 ( or 1.4 as suggested), and the timing difference between petrol and lpg is a bit higher. the map is a result of autocalibration.
Should I adjust the pressure on reducer? could be the big timing difference because of this?
Roverlord, would be possible to post your current settings?

thanks

(as you can see, the o2 sensors are not in use, I am using one reducer and also one filter with two output hose )

Hi pooh961, I'm still fiddling with mine. I still a having trouble with the fuel map. At idle it's a bit rough, under load it feels like it's starving, at 2200rpm when under load and on a hill it feels like it's not getting enough fuel. Changing the fuel map is what I find difficult as I don't know what I'm doing as there are too many boxes with settings in them.

Originally Posted by olbod

Excuse me.
What diagnostic tool are you Blokes using plugged into the gas thingy ?

Our Bitch is also on gas which stopped working.
Been told that therte is no one in Mackay with diagnostic tool to check it.

I know nothing about what we have and this is the first question on this subject with perhaps the idea to get it sorted.
With fuel tax going up I might be converted.

Ta.

A gas "thingy", eh? Well that'll help us narrow it down!

Seriously, you need to work out a little bit more detail about what your system actually is before anyone can help. Even some pictures of the most glaringly obvious gas parts (thingies, oh yeah)...