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Re: 70 T3 FI question


On 20 Sep 2003 at 11:49, David Engle wrote:

> Yes...I hear the relay click and the fuel pump come on for a second.
> Then clicks it back off. This was established in the old email and the
> reason for leaving it tacked on. So the fuel pump is atleast making a
> noise.  

It helps if you insert your replies after the relevant comments, like this, and 
delete the extraneous stuff. This preserves the natural conversational flow of 
the message (question followed by answer) and relieves the reader of searching 
to see if there might be something relevant within the quoted material 
elsewhere. Yes, it's more work, but reducing the amount of quoted material also 
reduces the amount of disk space that our archives take up.

If the pump is running you know that at least some of the FI system is 
funcional. You've verified the 12V power is getting to the brain, that the 
brain has a good ground, and that at least one small part of the brain is 
functioning correctly.  

> No, I have never head any tiny clicks when in the engine compartment. 

Then either your injectors are rusted closed from sitting too long with water 
in the fuel, or your trigger points are dirty and not making contact. Test the 
trigger contacts first.  

Using an Ohmmeter, measure between the center pin on the side of the dist and 
one side pin with the wiring harness disconnected. Get someone to crank the 
engine with the starter while you do this. The resistance should alternate 
between very high and very low. Repeat the test between the center pin and the 
other side pin. If either side stays open. Remove the distributor and clean the 
trigger points. DO NOT file them. Just clean them with a clean piece of paper 
slid between the points.  

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

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