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Re: [T3] Fuel Trouble!

On 20 Mar 2002, at 18:32, Bryan "bc" Castles wrote:

> So, my car runs well now, when I apply some pedal I get nice even
> acceleration, and can go through the gears.  HOWEVER, if I apply too much
> pedal, the car slumps forward like it has suddenly lost fuel, ignition or
> something.  Letting the pedal back up allows it to kick for a moment, then
> return to good performance. In trying to find the problem, I pulled the 2
> week old plugs and found them covered in black (too rich?) carbon...   so: 

> '73 Square FI.  Where in the world can I adjust and/or work on this problem?
> I am only equipped with a Haynes manual right now, and it gives squat for FI
> info. This is my daily ride, so I am hoping someone will have some ideas they
> can share. 

2 things to check:

1) When you get in the car and turn the key ON do you hear a relay click 
and then another click ~1 second later? You should.

Drive the car to get it all warmed up and then measure the voltage at the 
battery at medium RPM. It should measure 14.1 14.4V. If it measures less 
than 13.5V, replace the voltage regulator with a genuine Bosch. A worn out 
regulator will make the system regulating voltage run low which makes the FI 
system run rich. 

This is a VERY common problem, but it is not the only thing which might 
cause this. Still, it's a good place to start checking.

Let us know what you find.

Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA

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