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RE: 1971 VW Type-3 Squareback - desperate for help



>
>Help!
>

>Current status:
>1.  Engine seems mechanically sound.
>2.  Electrical parts replaced:
>    a.  Generator and voltage regulator.
>    b.  Computer (rebuilt - I think the original was OK).
>    c.  I think every sensor on the engine has been replaced.
>    d.  Air pressure value.
>    e.  New points, plugs, condensor, wires, cap.
>3.  When cold, engine idles smooth.
>4.  When warm, engine starts to run rough - hmmm.
>5.  If you disconnect the wire to the intake air temperature sensor
>    (located on the air intake distributor, left side, between intake
>    manifold tubes), it returns to smooth.
>6.  Fuel injectors have not been replaced.  I performed the injector
>    test where you listen for the clicking at the injector when you
>    move the throttle control.  From what I can determine, I could
>    only get clicks out of two of the injectors (one on each side),
>    but I was told this was OK.  I figured that if the f.i. was not
>    working, it wouldn't run as smooth as it does. (?)
>


Check the wiring to the intake air temp sensor by pinging the appropriate wire from the computer harness.  After that, seems the 
only thing left is the injectors.  Remove two and watch them fire into a can.  Should have no leaks and a nice fan pattern.  Make 
sure you remove the coil wire so the car does not run.  Be extra careful with raw fuel out in the open.  Might also try and clean 
contacts (FI) in bottom of distributor.  Jim, your input?
-------------------------------------
Craig Woolston
'70 Sqback and '71 Fastback
cwoolsto@ladc.lockheed.com




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