Right so I have taken dash out replaced the instrument panel incase of cold solder the gauge still doesn't work whilst dash out cleaned the earth up behind the dials on the bulk head even ran a new yellow cable to sender still no avail please please can someone help me as its frustrating the hell out of me...... 

Did you try the clean fresh new temporary earth lead directly from the the battery negative to gauge and/or sender?

 

No should i try that ??

Also the yellow block that's in the instrument panel what's the cables order please any photos to help 🙏 

18 minutes ago, sparticus-84 said:

No should i try that ??

You should do what's appropriate to your vehicle, I don't know Felicias (others here know them very well) just that on other older cars the gauge, depending on how it's wired can shows full or empty (or full) if the earth connection is broken or poor.  A wiring diagram will show if the gauge/sender is earthed or you should see the earth wire/connection.  You can disconnect this or piggy-back its connection to a direct connection to the battery earth and if the gauge needle moves you know the earth is poor or missing (subject to having sufficient fuel in the fuel tank).  Some items don't have earth wire wire connection but earth through the items body being connected to the car's body/chassis which is the earth but I have no idea if this applies to your sender/guauge.

 

 

 

To the instrument or to the sender in tank ps colours on the yellow block please 

Relative topics with the same problem.

 

https://www.briskoda.net/forums/topic/62322-felicia-fuel-level-sender-earth-connection/

 

https://www.briskoda.net/forums/topic/396359-fuel-guage-problems/

 

https://www.briskoda.net/forums/topic/255727-skoda-felicia-fuel-gauge-and-fuel-sender-problems/

 

 

 

 

Mine shows empty so termin fault ?? What's that mean 🙏 

So what should I do to make it work please explain 🤔 

And please can you tell me what the colours do please ie yellow the blue the red an orange then the black 4 cables thanks 

3 hours ago, sparticus-84 said:

Mine shows empty so termin fault ?? What's that mean 🙏 

Wire terminals (what connects the wire to the unit/instrument) possibly  "spade" connector of some sort on to a male connector "blade" or perhaps visa-versa sometimes on some stuff.

 

All connectors, terminals, wires need to be clean, secure and protected - a loose or dirty connector can be enough to cause thing to be intermittent or faulty or not working, same for earth connectors.  These are basic checks required by driver to highest level of specialist professional, sometimes even high level specialist with very sexy and expensive tools end up wiggling wires and connectors to check for faulty wires and connections.  Easiest to to take a connector off, this can check it security of mounting, visually check it's clean or just spray with electrical spray cleaner to be sure anyway and perhaps use a multimeter to test supply /wiring readings to compare with what is expected and work back/forward from there.

 

The fuel gauge arrangement is certainly more complicated than I expected but the basics of checking remain the same, check, double check, cross-check, record, check all, be methodical work back or forward on each connector/wire as required.

 

I only know the very basics but others here know lots more.  Good luck.

 

 

Edited 12 October, 20241 yr by nta16

Thankyou but what are the colours ie is yellow earth or ground what's the blue wire and the black wire and the 2 colour cable .......thankyou so there for I can run fresh cables please 

It's a 4pin plug on the fuel pump so what colours mean what and the corresponding ones at instrument end what is the colours there .

Will start from the beginning so anyone who reads this might know what is happening...

So I turn the ignition the fuel gauge on dash flickers jumps about 5 to 10mm then stays on empty after a few seconds say 20 or 30 the orange light appears as if empty which I know it's not... 

I started by replacing fuel pump which has the sender attached which I know to work... my old fuel pump had packed up so brought new 1 and I replaced the cluster with a new 1 too.. the old sender did work as before the van was sat up for 5 years off the road but still started and moved around until a year ago when the ecu wouldn't work the van just laid up..

So replaced ecu and cleaned the earth wire up by ecu as was advised and came to life..

Now back to problem... the fuel pump wires that's a 4 plug pin type photo attached Internet picture.

The back of dash instrument panel these cables which 1's are the corresponding 1's to pump end also where are the earth points is there any other earth points for the sender and dash instrument other than the bolt behind clocks ?? Please help as me van is so helpful and like things to work..

In another thread I read someone replaced the yellow cable please explain this technique.

2 hours ago, sparticus-84 said:

the fuel pump wires that's a 4 plug pin type photo attached Internet picture.

 

I am out in a Cafe, when i turn back home i will try to find the fuel pump electrical diagram of the Felicia.

This will help you?

Anything to help as I can't understand only thing is sometimes the light switch is temperamental and needs to be pushed a couple of times ??

4 hours ago, sparticus-84 said:

and cleaned the earth wire up by ecu as was advised and came to life.

Whatever colour covering that wire has all other earth wires (that are covered and not just uncovered) should be the same, subject to them being original wiring from factory.  With vehicles that are decades old there is always possibilities of factory wiring to have been messed about with and/or additional wiring added which may not confirm to factory colours or layout.  Having put that you need a wiring diagram, obviously it is best to be for your model and year of vehicle with whatever changes or factory deviations or extras that were available and for your sales region.

 

Others will know what diagrams are available and where you might access or buy them from.  Also note errors and omissions seem to be on most/all databases even from factory/manufacturer but by now others would know of any common errors or omissions.   Example on later VWŠkoda models the fuse box diagrams in the VWŠkoda Owner's Manuals may have errors.

 

Also never assume just because a part is new that it can't have a faulty and not be working properly or fully just because it works and that the previous part was fitted correctly just because it worked previously, always check and where possible test parts before fitting and check the existing fitting arrangement is correct.  I've know owners who have had and used vehicles for decades, not just years, and not know that something is fitted wrong (or differently) or operating something wrongly because it's fitted wrongly and these were very capable people knowing a lot more than me but they were only used to their own example of the vehicle and hadn't fully consulted other points of reference information.

 

I'm not an expert in anything, certainty not a mechanic or electrician but until a couple of years ago I ran various (British) "classics" (old over-priced and over-valued) carsas dailies, for work, commuting, holidays and club events for 30+ years so I have some experience.  And others here run or own Felicas so have lots of actual real world experience of the model.

 

 

 

 

 

 

 

 

 

 

Please cam somebody say what I need to do  to correct the gauge not work8ng please also where do the cables go behind dashboard thanks 

 

1 hour ago, sparticus-84 said:

Please cam somebody say what I need to do  to correct the gauge not work8ng please also where do the cables go behind dashboard thanks 

check for cold solder then check voltages then report back

Have put new dials in so not cold solder 

6 hours ago, sparticus-84 said:

Have put new dials in so not cold solder

check you are getting proper voltages fed to the float and to the gauge

Already checked that 

On 12/10/2024 at 13:11, sparticus-84 said:

Also the yellow block that's in the instrument panel what's the cables order please any photos to help

If you give me the colour of the wires in each connector on the yellow block, I should be able to help. The individual ports are numbered on the yellow connector, just say which colour goes to each numbered port.