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Re: [T3] '70 squareback starting problem



Michael=> we can probably limit the problem to something stemming from 
=> lack of use.

I agree. Before you start worrying about the electrical part of the FI 
system, which is pretty reliable, you'll want to drain and clean 
the entire fuel system. Gas gets old and turns to varnish, clogging 
things up. This will be somewhat *less* a problem with an FI system, 
since there are fewer crannies to clog. 

* Flush the tank and pressure regulator
* Replace any old rubber fuel lines that are left (it's time anyway) 
* Make sure the newer lines are good, clean German FI hose 
* Replace the filters (including maybe the tank screen)
* Check the injector spray patterns
* Run a fuel-pressure test looking for both over- and under-pressure, 
  which would point to a regulator problem. 
* Check carefully for dried-out, cracked boots and hoses 
  that might allow vacuum leaks. 

With clean, fresh fuel moving at the right pressure and a tight air 
system, you'll most likely be fine.

=> not regularly driving these fuel injected engines can lead to 
=> problems. 

This is true of *any* car, carbed or not. Keep in mind that even 
experienced VW mechanics often don't understand the FI systems, and fear 
them.

Good luck, and keep us informed of your progress.

Steven Ayres, Prescott AZ
'66 Type 3 Ghia (dual carbed)
'78 Riviera Campmobile (FI)

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