sorry fuel guage

Technical questions and answers about the Mazda Bongo

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karen
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sorry fuel guage

Post by karen » Sat Apr 03, 2010 4:43 pm

still having a problem with guage
i have done the extra earth setting as appears in a few of the posts and now rather than nothing at all - the guage is stuck on full

i assume i need to follow the wot i found epicPosted: Sat Apr 14, 2007 6:56 pm post and do the suggestions there

is it easy enough to take the unit off - i assume it is just a case of disconnect the pipes , remove the screws - pull it and have a look?
will there be much leakages from these pipes if i remove them?

sorry for the stupid question - not that grate with car mechanics but sometimes these things turn out to be a lot easier than they appear to me
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dreamwarrioruk
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Re: sorry fuel guage

Post by dreamwarrioruk » Sat Apr 03, 2010 4:46 pm

you might get a couple of drips out of the pipes when you disconnect them, the sender unit is easy to remove, if your handy with a multimeter you could check the resistance of the float unit to see if thats at fault. it might be just stuck in the top position tho i doubt it.
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gmaczbongo
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Re: sorry fuel guage

Post by gmaczbongo » Sun Apr 04, 2010 8:56 pm

Sounds like you may have earthed the wrong wire.
If you earth the live wire, you will get a full tank reading.
Just try connecting a wire from the seat post to a cleaned part of the top plate.
Just hold the wire on both parts ans see if the gauge reads properly.
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missfixit70
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Re: sorry fuel guage

Post by missfixit70 » Sun Apr 04, 2010 8:59 pm

gmaczbongo wrote:Sounds like you may have earthed the wrong wire.
If you earth the live wire, you will get a full tank reading.
Just try connecting a wire from the seat post to a cleaned part of the top plate.
Just hold the wire on both parts ans see if the gauge reads properly.
You could be right :wink:

It's the black wire that should be earthed as per this thread - http://www.igmaynard.co.uk/bongo/forum/ ... =3&t=33920
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karen
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Re: sorry fuel guage

Post by karen » Mon Apr 05, 2010 9:51 am

sorry updated link instead of correct thread

ok i was 99.99% sure but pop out and checked again
it is wired as per your diagram

if i pop a rapidtest on it then the green is registering 5 to6 volts and the black is zero (need to get a new meter though - it's a bit flakey)

if i remove the extra earth and just put the original earth point on then the guage starts to read constant empty - if i reattach the earthing as per diagram then i get full reading

the pipes admittedly dont look as big and scary as i thought - i assume i'm really at stage of remove and have a look (can at least get some photo's of underneath as havent seen any yet)
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Doone
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Re: sorry fuel guage

Post by Doone » Tue Apr 06, 2010 5:20 pm

I don't know if you've seen THIS FUEL GAUGE POST it may help as it describes how to test both the sender and the gauge.
Allans Garage retired. Try PGS (Plymouth Garage Services) or Mayflower Auto Services Plymouth
karen
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Re: sorry fuel guage

Post by karen » Thu Apr 08, 2010 10:30 pm

yep seen a few and to be truthful - having seen the hoses in the kirsty pics - i think i will remove them anyway and have a peak.

gonna to it at the weekend and see how it goes
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