citroen AX fuel guage issue

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jsp
Posts: 327
Joined: 04 Dec 2014, 02:05
Location: Netherlands
My Cars: AX 3x 10E 1.4 GTI 5drs 1.0i
CX 2x GTI turbo
ID 19 1960

Now:
1960 ID 19
1984 CX GTI Turbo 1
1987 CX GTI Turbo 2
1987 AX 10E Pino
1994 AX 1.4 5dr TGS GTI
1994 AX 1.0 3dr Escapade
1996 AX 1.1 3dr spot Burgundy
1996 AX 1.1 5dr Verte
2003 peugeot 206 xs leather with auto A/C
x 12

citroen AX fuel guage issue

Post by jsp »

Hi, I have an issue with my fuel guage. When I put on contact it says on 4/4 even when I swap another cluster.

Citroen AX 1.4 TGS E2 1994 with 124.000mls = 200.000km on the clock.

Image

Image

Image

Things I have tried so far:

- disconnect the fuel sender (nothing happens)

- another cluster (nothing)

Does anyone know the pinout of the three pins in the sender?

is it:

- GND
- Low fuel
- Fuel guage

or

- + 12V
- low fuel
- Fuel guage
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Zelandeth
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Re: citroen AX fuel guage issue

Post by Zelandeth »

Sounds to me as though there's a short to ground on the line between the instrument panel and the gauge sender unit on the tank.

The gauge is basically just an ammeter. The sender unit in the tank is a variable resistor, presenting a high resistance when the fuel level is low, and a low resistance when the level is high. If the wire between the gauge and the tank is broken and just left "floating" it would show as empty permanently, if however it is shorted to ground (the car's body in this case), it will bypass the sender entirely and show as full.

Afraid I don't know where that wiring is routed in the AX, but working on intuition alone, I'd probably start at the tank end, especially where the wiring passes through the bodywork into the main loom. Had it fail there many years ago on a Metro anyway!
Current fleet:
06 Peugeot Partner Escapade 1.6HDi, 88 Renault 25 Monaco, 85 Sinclair C5, 84 Trabant 601S, 75 Rover 3500, 73 AC Model 70.
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Chris570
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Re: citroen AX fuel guage issue

Post by Chris570 »

The wiring loom on an AX runs like this...

Dash pod out on to the main dash harness
Connectors at the n/s A pillar
A grey ribbon cable that runs under the carpet
splits off near the rear seats
through a grommet (i think) and then along the top of the tank
2006 C5 HDi 170
1998 Xantia Activa S1
1971 D Special
2006 C3 1.6 HDi SX,
CitroJim wrote: I'm a pink fairy
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User avatar
jsp
Posts: 327
Joined: 04 Dec 2014, 02:05
Location: Netherlands
My Cars: AX 3x 10E 1.4 GTI 5drs 1.0i
CX 2x GTI turbo
ID 19 1960

Now:
1960 ID 19
1984 CX GTI Turbo 1
1987 CX GTI Turbo 2
1987 AX 10E Pino
1994 AX 1.4 5dr TGS GTI
1994 AX 1.0 3dr Escapade
1996 AX 1.1 3dr spot Burgundy
1996 AX 1.1 5dr Verte
2003 peugeot 206 xs leather with auto A/C
x 12

Re: citroen AX fuel guage issue

Post by jsp »

Ok got the fuel leveller out and I have ''shunt'' wired the fuel guage. I hope the middle one is the correct one.
Image

It's working (fingers crossed)
Image
citronut
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Re: citroen AX fuel guage issue

Post by citronut »

are you the person sent me an inquiry regarding the AX tank sender i have listed on ebay, if so the one in your last photo looks the same type as the one i have for sale

http://tinyurl.com/q7mzl26" onclick="window.open(this.href);return false;
Regards, malcolm.

current ride a BX 1.7 TZD estate
1986 MK1 BX 1.9na D Auto(in Mothman Andy's stable )
layed up roppy 1.9TD XANT estate, now gone to meet her maker
purple and lilac metalic 2CV(VIOLET)registered to her in doors
1972 DS special been layed up aprox 31 years
User avatar
jsp
Posts: 327
Joined: 04 Dec 2014, 02:05
Location: Netherlands
My Cars: AX 3x 10E 1.4 GTI 5drs 1.0i
CX 2x GTI turbo
ID 19 1960

Now:
1960 ID 19
1984 CX GTI Turbo 1
1987 CX GTI Turbo 2
1987 AX 10E Pino
1994 AX 1.4 5dr TGS GTI
1994 AX 1.0 3dr Escapade
1996 AX 1.1 3dr spot Burgundy
1996 AX 1.1 5dr Verte
2003 peugeot 206 xs leather with auto A/C
x 12

Re: citroen AX fuel guage issue

Post by jsp »

citronut wrote:are you the person sent me an inquiry regarding the AX tank sender i have listed on ebay, if so the one in your last photo looks the same type as the one i have for sale

http://tinyurl.com/q7mzl26" onclick="window.open(this.href);return false;
nothing sent here.
User avatar
jsp
Posts: 327
Joined: 04 Dec 2014, 02:05
Location: Netherlands
My Cars: AX 3x 10E 1.4 GTI 5drs 1.0i
CX 2x GTI turbo
ID 19 1960

Now:
1960 ID 19
1984 CX GTI Turbo 1
1987 CX GTI Turbo 2
1987 AX 10E Pino
1994 AX 1.4 5dr TGS GTI
1994 AX 1.0 3dr Escapade
1996 AX 1.1 3dr spot Burgundy
1996 AX 1.1 5dr Verte
2003 peugeot 206 xs leather with auto A/C
x 12

Re: citroen AX fuel guage issue

Post by jsp »

It's working thanks all.

Image
User avatar
Zelandeth
Donor 2024
Posts: 4722
Joined: 16 Nov 2014, 23:36
Location: Milton Keynes
My Cars: 2006 Peugeot Partner Escapade 1.6HDi.
1988 Renault 25 Monaco 2.0i.
1985 Sinclair C5.
1984 Trabant 601S.
1975 Rover 3500.
1973 AC Model-70.
x 1399
Contact:

Re: citroen AX fuel guage issue

Post by Zelandeth »

Excellent. For the benifit of future readers, what turned out to be the fault in the end?
Current fleet:
06 Peugeot Partner Escapade 1.6HDi, 88 Renault 25 Monaco, 85 Sinclair C5, 84 Trabant 601S, 75 Rover 3500, 73 AC Model 70.
User avatar
jsp
Posts: 327
Joined: 04 Dec 2014, 02:05
Location: Netherlands
My Cars: AX 3x 10E 1.4 GTI 5drs 1.0i
CX 2x GTI turbo
ID 19 1960

Now:
1960 ID 19
1984 CX GTI Turbo 1
1987 CX GTI Turbo 2
1987 AX 10E Pino
1994 AX 1.4 5dr TGS GTI
1994 AX 1.0 3dr Escapade
1996 AX 1.1 3dr spot Burgundy
1996 AX 1.1 5dr Verte
2003 peugeot 206 xs leather with auto A/C
x 12

Re: citroen AX fuel guage issue

Post by jsp »

Zelandeth wrote:Excellent. For the benifit of future readers, what turned out to be the fault in the end?
Somewhere between the wires is shorting to +12V so I '''shunt wired'' the whole thing from sender till guage.
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