Battery drain - because of fuel injection!

Not sure if this is related to your year or not, but my FI bug has a relay that controls the power to the FI control box when the car is running. It is located next to control box. If your bug has this relay as well, perhaps it has one of its contacts welded closed?

Remco

Look here on my web site:

On the far right of the diagram, look for pin #10 on the ECU (ECU Power). This is fed from the "Double Relay" pin 88a. The relay gets its power direct from the battery, so its always live.

If that relay contact sticks, the ECU never shuts off.

That would be my first suspicion.

There is a very good diagram of the system for your year in Haynes '80 thru '83.

Speedy Jim

Yours is of course a bus, I mean - not a bug. Design might be similar, though..

Speedy,

Sometimes you scare me.

:D

Jan

ROFLMAO That's the nicest thing anyone has said to me all week:-) Jim

Thanks to both... I haven't had a chance to look at the van yet. I actually already printed that diagram ages ago, if I'd thought about it more. : )

Check the fuel injection main power relay, also called the double relay. I don't know where it's located on a bus, but it should shut off power before it can get to the brain when you turn the key off.

----------------------------------------------- Jim Adney snipped-for-privacy@vwtype3.org Madison, WI 53711 USA

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One more thing - if the Vanagon has the same circuitry as the late bus, there is a remote chance you could be getting feedback through your hazard warning switch. I had power at the double relay until I disconnected the hazard warning light switch (don't remember which fuse did it, but since you removed all fuses, that probably excludes it.) If all else fails, look there. -BaH

Hm... Ok, thanks. Must get around to looking at this too - if it had some seats, we'd use it more often! (It's a two-seater commercial.)