View unanswered posts | View active topics It is currently August 19th, 2019, 4:16 am

Reply to topic  [ 3 posts ] 
 Fuel guage test 
Author Message
2CV Fan
User avatar

Joined: June 28th, 2009, 4:24 pm
Posts: 91
Post Fuel guage test
My Dyane fuel gauge has stpped working. used a new sender to test the wiring but no joy so could be the wiring or the guage itself. How do I test the gauge which of the contacts does what any one know.
there is a Youtube but it doesn't show which contact to connect to.


January 24th, 2019, 12:35 am
Firing on two.
User avatar

Joined: March 21st, 2013, 12:04 am
Posts: 793
Location: Exeter, Devon
Post Re: Fuel guage test
I believe a common fault, is a bad earth from sender to chassis.

If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....

January 24th, 2019, 3:04 am
Firing on two.

Joined: April 9th, 2010, 12:21 am
Posts: 421
Location: West Sussex
Post Re: Fuel guage test
I think the colours are the same on all A-series:
Mauve-sleeved wire is live to the gauge.
Yellow-sleeved wire goes from gauge to sender (via joints at bulkhead and rear inner wing).
The live feed (mauve) to the gauge is fed via the 16amp fuse with the blue-sleeved wires and should be live when the ignition is on. If it is, then disconnect the yellow-sleeved wire from the gauge and replace it with a temporary wire to earth. The gauge should then read 'full'.
If it doesn't, then the fault lies within the gauge, (unusual).
If it does, the fault is in the remaining part of the circuit, via the sender, to earth. If this is the case, with the gauge re-connected, disconnect the yellow-sleeved connections on the bulkhead and run a temporary wire from the gauge-side of the joint, to earth.
If the gauge doesn't read full, then the fault is between the gauge and the bulkhead joint.
If it does read full, then re-connect and try the same at the next joint, by the left-hand inner wing to determine which side of that joint the fault lies.
If it's after that joint, the wire may have rubbed through on the rear arm or tyre. If not, check the earth from the sender to the chassis/body. Then all that's left is the sender (or connections directly to it), so tank out.

January 24th, 2019, 7:37 pm
Profile WWW
Display posts from previous:  Sort by  
Reply to topic   [ 3 posts ] 

Who is online

Users browsing this forum: No registered users and 18 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by STSoftware for PTF.