My 2001 CRV starts first time even in the cold and the idle is fine till I change to R or D, it then stalls. Eventually when I get it going, the revs are very low and if I stop it stalls. All problems resolve themselves once the engine is warm. The diagnostic was 100% and Honda blamed it on the LPG conversion, the LPG company said the car running on LPG mirrors it running on petrol and the LPG system is 100%. Be it on petrol or gas, the idle is very low/stalls unless it is in N or until the engine warms up. Any help would be much appreciated. Thanks