Dodgy fuel gauge - earth fault?

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Post Reply
abernethybongo
Junior Bongonaut
Posts: 21
Joined: Sat Jan 25, 2014 5:50 pm
Location: Perthshire

Dodgy fuel gauge - earth fault?

Post by abernethybongo » Thu Mar 13, 2014 9:18 pm

Hi folks,

Having fuelled up our new Bongo a few times now, both when the needle was well into 'empty', the most I've been able to put in was 47 litres (40 the first time), which seems odd because as far as I can tell they all have 65l tanks (correct me if I'm wrong, I'm new to this)! Is this common, or could it be indicative of an earth fault? That was the main thing which came up on forum searches for 'fuel gauge' - http://igmaynard.co.uk/bongo/forum/view ... =3&t=48363

21mpg on our first tank :-( but up to 27.5 now with 36/38psi in the tyres and a more cautious right foot!

Cheers,
Jamie
1997 white and silver unconverted 4WD WL-T AFT
francophile1947
Supreme Being
Posts: 11354
Joined: Mon Dec 18, 2006 6:15 pm
Location: Norwich

Re: Dodgy fuel gauge - earth fault?

Post by francophile1947 » Thu Mar 13, 2014 9:38 pm

Sounds like a faulty earth 8) I put a new wire from underneath - tank lip to sill, 5 minute job :D
John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
User avatar
Diplomat
Supreme Being
Posts: 2484
Joined: Sat Mar 28, 2009 10:01 pm
Location: Bexley Kent

Re: Dodgy fuel gauge - earth fault?

Post by Diplomat » Fri Mar 14, 2014 12:02 am

One minute job if you make up a lead with a croc clip at either end. Clip it into a hole at the tank end and somewhere secure on the bodywork.

The crocs get their teeth in nicely and if needed you can give them a wiggle every time you open up the driver's side lid for another reason.

To be on the safe side over new wiring regs I took it off for the MoT test but that day I knew how much I had in the tank. It wasn't the tester's problem that the gauge was reading minimum!


Frank
My schoolmates idolised Biggles, I wanted to be Alcock & Brown
They flew, I took up naturism
abernethybongo
Junior Bongonaut
Posts: 21
Joined: Sat Jan 25, 2014 5:50 pm
Location: Perthshire

Re: Dodgy fuel gauge - earth fault?

Post by abernethybongo » Sun Mar 16, 2014 10:09 pm

Nice one, cheers guys!
1997 white and silver unconverted 4WD WL-T AFT
Post Reply

Return to “Techie Stuff”