1995 VRII Code 45: running rich on LPG

[b_rocka]

I have a 1995 VRII Commodore with dual fuel (sprint gas system). When I run my car on LPG sometimes the engine light will come on, especially when the car is at operating temperature and just idleing at around 1500 RPM. I have checked the code and it is coming up Code 45: O2 running rich. I have replaced my O2 sensor and cleared the code. The engine light will not come on if the car is running on petrol, so I figured that the gas mixtures needed tuning. I took the car to LPGAS1 in Lilydale Victoria: BAD F*#KING IDEA! $550 later with a new gas processer and dyno tune, the car was running worse than ever and the engine light still coming on. They told me it was the inlt mnifold gasket but there is also no leak in the seal. After I took it back for the 4TH time the old processor was put back in it and it is now running better BUT the engine light is still coming on! Hence I am appealing or the smartest gas specialist/mechanic to please shed some light on this annoying issue, as apparently nothing will fix this issue!

 

[b_rocka]

so can anyone help, or have i stumped you all????????

 

[johnnyk]

Did you find out what the problem was?

I thought the LPG system read the oxy sensor input (to adjust the mixture) but sends a dummy value to the petrol ECU... I could be wrong though.