How to reduce Fuel Use?

[marknatasha89 Lurker Find all posts View Profile Close marknatasha89]

DIY LPG tuning

After reading from the LPG tuning gurus in these links, I now suggest leaving the converter (ie sensitivity and idle mixture) settings alone and only screwing in the large gas restrictor screw on the low pressure pipe just until performance is impacted.

http://www.performanceforums.com/for...DIY-LPG-Tuning
http://www.fordmods.com/post597545.html

Best to leave the mixture settings to a garage with an oxygen sensor to get them right. Perhaps the large screw at the bottom of your converter needs to be removed to let the sludge out? Again your garage should confirm. Let us know how you went.

[kav Avid PP Poster! Find all posts View Profile Close kav]

does your wife or girlfriend drive the car ? my last car suddenly started to lose between 120 and 150 ks per tankfull . i spent a fortune trying to fix it . eventually sold it . one day i watched the fuel computer in the prado while the missus was driving . holy crap i lost 120ks in the space of less than 5 mins and about 5ks .

[eatlovelearn Junior Member Find all posts View Profile Close eatlovelearn]

i told my missus to go on a diet , after a couple of months i noticed a slight change in fuel and chocolate consumption lol

[croozza Avid PP Poster! Find all posts View Profile Close croozza]

An easy way to reduce fuel consumption is to not run the motor!!!!

[Esses Junior Member Find all posts View Profile Close Esses]

You will never get the same economy on LPG as you do on petrol, so what your getting on LPG is about right as it is normally about 40% to 50% extra

Sorry, but no, no, no. Over 7 different vehicles (sedans, vans & 4WDs) on LPG (all Mixer Systems) I've never had more than a 10-20% increase in LPG consumption over petrol usage, UNLESS the motor is just plain worn out. This may be the OP's issue, unfortunately. If LPG consumption were normally 40-50% higher than petrol, there'd be no point in converting to LPG, running costs would be pretty much the same.

[Playdoh96 Member Find all posts View Profile Close Playdoh96]

Hi guys
Sorry if this is to late for some of you but Iam only new to pp. Just thinking that the problems you are having is possible not related to the tune of the gas system, but related to the ecu ignition.
90 series have a ecu that if it pick any engine pinging ( rattle at low rpm / high load) will retard timing dramatically. The ecu will advance the timing but very slow. Can take up to 5000km. I've had this problem before with a bad batch of fuel, but it did get better using high octain fuel. I know you guys are talking about gas but it will have the same effect. Maybe a good reason to go for a long trip up the cape or something like that.
All the best Kris