Fuel Gauge Fault - Fixed! Plus Ext. Temp/Time/Volts Display!

[Tim1980]

Ok I've had the speedo out and the fuel fudge as well.

The connections are indeed by pins rather than screws, 3 on the fuel guage and 5 on the speedo.

The speedo is as the proverbial door nail, or indeed the dodo.

Now, with the fuel guage I've either fixed it and I'm driving on fumes right now or I've properly finished it off and it's truly kaputt, to the the German word.
Why I say that is this; the fuel guage reads empty but there's definitely power going to it. When the ignition goes on the needle jumps and hovers not quite on empty.

I guess one way to tell will be to put more petrol in!
I'll do that next trip out.

[Laird Scooby]

Originally Posted by Tim1980

any idea what these bayonet plugs are for, the double one has a lead that I unplugged with a red wire but only fits on one of the two. The other is a complete mystery on the back of the speedo, and there is another double clip I have just removed on another of the speedo screws...?

A better pic with things out back together

It's a speed signal +ve output probably to the fuel ECU - losing this signal can cause abnormally high idle speeds esp. on turbo cars.

[Tim1980]

Apologies Dave, it's dawned on my that I've been spamming your fuel guage post rather than waiting all this in my own posts!

[Laird Scooby]

Originally Posted by Tim1980

Apologies Dave, it's dawned on my that I've been spamming your fuel guage post rather than waiting all this in my own posts!

No worries Tim, it's all useful info and on another note - some good news is you can finally PM people as you've reached 32 posts! You need 30 or more to PM so you're good to go now!

PS your status should have changed from "New Member" to "Junior Member" now as well.

[Tim1980]

Originally Posted by Laird Scooby

No worries Tim, it's all useful info and on another note - some good news is you can finally PM people as you've reached 32 posts! You need 30 or more to PM so you're good to go now!

PS your status should have changed from "New Member" to "Junior Member" now as well.

Ok thanks, good to know.

As far as instruments go nothing had changed with the fuel guage. I went to buy 98ron but failed, I have to travel to the next town to buy it apparently. Next time. I still have no idea how much fuel I have so I might start using fuel containers, and buy 98 ron in them and see how low i can go.
It looks like i need a new speedo and odometer unit sand a fuel guage then. I'll put a post up in the wanted.

Thanks again for yours and everyone's help.

[Laird Scooby]

Originally Posted by Tim1980

Ok thanks, good to know.

As far as instruments go nothing had changed with the fuel guage. I went to buy 98ron but failed, I have to travel to the next town to buy it apparently. Next time. I still have no idea how much fuel I have so I might start using fuel containers, and buy 98 ron in them and see how low i can go.
It looks like i need a new speedo and odometer unit sand a fuel guage then. I'll put a post up in the wanted.

Thanks again for yours and everyone's help.

You're welcome and keep an eye on fleabay - personally i'd rather have a complete unit of all instruments as you don't know how "sympathetic" the person was who dismantled them!

Seems the going rate is about £80 for a cluster, make sure it's VDO as VDO and Tazaki aren't compatible and preferably the same year car.