Erratic fuel gauge - Causes?

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

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MikeMac
1.8 8v
Posts: 38
Joined: Sun Dec 02, 2007 6:30 pm

Erratic fuel gauge - Causes?

Post by MikeMac »

Hi,

The main electrical problem on the 406 I'm picking up is a wonky fuel gauge. It's either constantly on full, constantly empty or reading fine, but the fuel low light still works as normal.

I can't see the sender being duff, as that would affect the warning light too, so my suspicion is dry solder joints, or a bad connection somewhere.

Before I strip the dash out Is this a likely cause, or is there any other possible causes in the chain and, if so, where are they?

If I do have to strip out the dash is there any other potential gremlins that are worth sorting while it's in bits? Finally does anybody have the wiring diagram, so I know what does what?
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