I know that the right answer is my first choice, but I have just spent nearly £700 fixing the cooling issue & putting the car through MOT. I have done some research, Prins runs at a higher pressure than most other vaporisers,the Voltran will run to 2 bar, is this enough? Cost about £150. Take the car to a Prins installer, they will charge about £400 to replace the vaporiser & set it up, orīuy another vaporiser, eg Voltran VSGI, and the software off Ebay, fit it, & set it up myself.
If not repairable, I will be left with two choices: I am looking to remove the vaporiser & stripping to see if it can be repaired/refurbished. A google search reveals that this is a fairly common fault on older Prins systems (mine was fitted in 2005), and is not usually repairable. It is passing gas into the cooling system, pressurising it, and giving many symptoms of head gasket failure. Luckily (ish) it wasn't the head gasket, it looks like the vaporiser is at fault. I have just had to have some work done, it looked like the head gasket had blown.ouch, very expensive. The system was on the car when I bought it last year, and was running ok until recently. I am running a '99 plate BMW 540i, with a Prins VSI system. Diesel Gas Connection has been in business for 20 years and will continue to do so for many more years to come. I am looking for some assistance or information. We have also, spent hours conducting Dyno and emission tests, with Peel, and developed our own 'Software Control', to suit our own equipment, including the reliable Keihin Injector, supplied by Prins Autogas System Australia.