XenonzcarImporter: Rewrite 1 archive URL(s) to internal wikilinks

2026-05-17T01:59:25Z

Rewrite 1 archive URL(s) to internal wikilinks

← Older revision		Revision as of 01:59, 17 May 2026
Line 38:		Line 38:
	Secondly, if you haven't already, get the factory service manual:		Secondly, if you haven't already, get the factory service manual:

	[~~https://dev.z31library.com/xenonzcar_archive/z31~~/~~fsm.html~~ https://dev.z31library.com/xenonzcar_archive/z31/fsm.html]		[[Z31/z31fsm php\|https://dev.z31library.com/xenonzcar_archive/z31/fsm.html]]

	Thirdly, yeah that's your sender unit under that plate.		Thirdly, yeah that's your sender unit under that plate.

XenonzcarImporter: Clean remaining xenonzcar URL variants

2026-05-16T21:25:29Z

Clean remaining xenonzcar URL variants

← Older revision		Revision as of 21:25, 16 May 2026
Line 38:		Line 38:
	Secondly, if you haven't already, get the factory service manual:		Secondly, if you haven't already, get the factory service manual:

	[~~http~~://~~www~~.~~xenonzcar~~.com/z31/fsm.html ~~http~~://~~www~~.~~xenonzcar~~.com/z31/fsm.html]		[https://dev.z31library.com/xenonzcar_archive/z31/fsm.html https://dev.z31library.com/xenonzcar_archive/z31/fsm.html]

	Thirdly, yeah that's your sender unit under that plate.		Thirdly, yeah that's your sender unit under that plate.

z31p_Mr M: Forum archive import (z31performance)

2026-05-15T05:15:50Z

Forum archive import (z31performance)

New page

{{ForumImport
|op_user=Mr M
|op_date=2017-01-21 19:54:47
|post_count=5
|archive_url=/Z31performance_archive/forum/z31-repairs-forums/electronics/534059-fuel-gauge-sender-problem.html
}}

'''Mr M:''' (2017-01-21 19:54:47)

my fuel gauge has not worked since i got the car,i have unplugged the fuel sender unit in the trunk and measured the volts at the plug with the ignition on,its about 7.7 volts,ive changed all the relays in the footwell and in the relay box under the hood,and the two metal boxes by the spare tyre well in the back have nothing to do with it,does anybody know where the relay is that deals with the fuel gauge sender unit? i cant see anything in the book saying about it,mines a uk car but looking in the manual a lot of stuff is similar just on the other side on us cars........

----
'''flatfoot:''' (2017-01-22 08:09:24)

Here in the US there's a 10A fuse that supplies switched power to the gauges. Middle Column, 3rd one down. From there the sender works as variable resistor to ground.

Basically your gauge is dropping the 7V.

Its my guess that you are not using a high impedance volt meter and its acting like the sender by providing a path to ground.

----
'''Mr M:''' (2017-01-22 19:35:26)

yes you must be right,i tried a secondhand sender today wired up to the cars sender wires out of the tank with the float about half way(dry),and saw the gauge rise so its obviously a duff sender unit problem

----
'''Sticky Sam:''' (2017-02-06 21:36:53)

First time on this site chaps, so don`t give me flak if I ask something obvious to some. My Zed ( 1986 ) also has duff fuel gauges. Like this chap I guess it is the sender unit. I looked under the rear carpet and found two lots of wire/cables going down through the floor. There is a circular plate with two screws, having taken the plate off I see a smaller circular unit with 6 or maybe 8 ( sorry I have forgotten ) screws/bolts. Would the sender be under or even attached to the smaller plate? Thank you in advance.

----
'''Z_Karma:''' (2017-02-06 22:00:32)

{{Quote|user=Sticky Sam|First time on this site chaps, so don`t give me flak if I ask something obvious to some. My Zed ( 1986 ) also has duff fuel gauges. Like this chap I guess it is the sender unit. I looked under the rear carpet and found two lots of wire/cables going down through the floor. There is a circular plate with two screws, having taken the plate off I see a smaller circular unit with 6 or maybe 8 ( sorry I have forgotten ) screws/bolts. Would the sender be under or even attached to the smaller plate? Thank you in advance.}}

Firstly…Welcome to the site.

Secondly, if you haven't already, get the factory service manual:

[http://www.xenonzcar.com/z31/fsm.html http://www.xenonzcar.com/z31/fsm.html]

Thirdly, yeah that's your sender unit under that plate.

Forums/Z31P/z31-repairs-forums electronics/fuel gauge sender problem - Revision history

XenonzcarImporter: Rewrite 1 archive URL(s) to internal wikilinks

XenonzcarImporter: Clean remaining xenonzcar URL variants

z31p_Mr M: Forum archive import (z31performance)