Hello, after posting in the ‘tell us your story section’ thought I would post the little ‘issues’ that we have.
It should be noted that our Mazda Bongo ‘Bonnie’ drives perfectly on petrol and all these issues happen in the heat of summer as well as the cold of winter.
Bonnie is a year 2000, 2.5V6 petrol with a Romano injection system 8, converted when we purchased from a well known installer, October 2015.
An intermittent hiccup when driving at constant motorway speed, around 2500-2750 rpm. No problems around town or up and down dale.
Fuel economy down to 14.5 from around 18 mpg
Both of the above problems were solved by remapping. There was a couple of occasions after the remapping when we didn’t use Bonnie for a few days, and the above problems reoccurred. When this did occur, she wouldn’t change over to LPG, and the LPG fuel gauge would stay on for ten minutes, even if ignition keys were removed. Then, when we started her, would change over without any problems.
A loud hum if driving in stop start traffic for a while or climbed a hill quite hard. Goes the instant you switch to petrol, comes back when you switch to LPG.
Have uploaded a video to youtube, may need to turn volume up a bit. https://www.youtube.com/watch?v=vTCO2dhfdJ4
Not sure where it’s coming from…..
A very high pitched whine, sounds like it’s coming from the ECU in the passenger footwell….
The garage have been great but we are 2 ¼ hours away, so any help, very much appreciated.
After reading some other posts, realise that I'm not that technical when it comes to LPG...!
Best wishes and many thanks