krusty1977
New Member
I have a 1990 range rover 3.9 auto. It was converted to LPG several years ago.
It has always had an oscillation in the idle speed when running on gas. It oscillates between 700 and 1300 rpms. It doesn't do this when running on petrol.
The LPG system is an AEB/Leonardo 175.
I have the software and cable to control the system. I was able to sort the oscillation in the idle speed by selecting a different O2 sensor type. It was previously a 0-1V and I changed it to 5-0V. The idle speed flattened out. It ran fine like this for a few weeks.
Now the range rover suddenly started running badly on LPG. When I checked the system it indicates the O2/Lambda sensor has failed. Now this could be a concidence and it has just failed with age, but my suspicions tell me otherwise
Can anyone else confirm the correct settings for the O2 sensor? The old one has four cables. Two white, one black and one grey.
Any help is much appreciated.
It has always had an oscillation in the idle speed when running on gas. It oscillates between 700 and 1300 rpms. It doesn't do this when running on petrol.
The LPG system is an AEB/Leonardo 175.
I have the software and cable to control the system. I was able to sort the oscillation in the idle speed by selecting a different O2 sensor type. It was previously a 0-1V and I changed it to 5-0V. The idle speed flattened out. It ran fine like this for a few weeks.
Now the range rover suddenly started running badly on LPG. When I checked the system it indicates the O2/Lambda sensor has failed. Now this could be a concidence and it has just failed with age, but my suspicions tell me otherwise
Can anyone else confirm the correct settings for the O2 sensor? The old one has four cables. Two white, one black and one grey.
Any help is much appreciated.