Re: Terri LPG Problem
If your Territory is an SY there's no solution for the MIL on, as this model comes with EOBD II and will be constantly evaluating a number of systems that weren't monitored on SX. The same is true for BF falcon and onwards.
EOBD II will see the car running too lean when it's switched to LPG and will turn the MIL on. Disconnecting the battery for a few minutes should get rid of it, but as soon as you run it for a while on LPG it'll do it again.