If I remember rightly (and I often don't). The car will wait for the coolant temperature to reach a certain value before switching to LPG, mine used to switch within a mile - the obvious place to switch is the front (or both) solenoid/s. Can't remember where the sensor is though, some necam vaporisers have one in the body, but I think it's deleted in the Volvo installation. You need to check.
Won't be the stepper or distributer as that's after the solenoid.
__________________
2009 Volvo V70 D5 (Polestar 225bhp) r-design 180,000 miles
|