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Re: [T3] '73 E System question


On 23 Dec 2004 at 13:29, Neil Lynch wrote:

> I have a spare E System FI system from a '73.
> 
> What, if any, of the components work on a 1970 Fastback?

Not much of the big stuff: fuel pump & filter, relays, injectors & mounting 
hardware, temp sensors, voltage regulator, aux air regulator, distributor and 
trigger points, fuel pressure regulator, spark plugs.

Take a voltmeter and a good manual, like the Bentley or the Elfrink FI manual.
It's likely to be a broken wire or rusted fuel pump. Be prepared to fix a 
broken fuel overflow hose, which lets water into the gas tank; if you don't fix 
it, it will let you down again half way home. Take a good Bosch 30-019 voltage 
regulator, just in case.

Listen for 2 relay clicks when you get in the car and turn the key ON. You 
should hear 1 click and then a second click about 1 second later. If you don't 
hear both of these then there is a wiring problem that you need to find and fix 
first thing.

If there is someone in the area with the Bosch FI tester, that will make short 
work of finding wiring problems. Anyone out there got one in Arizona?

As someone else mentioned, check the valve adjustments and all the ignition 
stuff FIRST. Make sure that you actually have spark going to all 4 cylinders. 
Use a timing light with an inductive pickup; if you clip it to each of the 
wires in turn you can verify that there is spark going to all 4 plugs.

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

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