idles too fast

1976 VOLKSWAGEN BEETLE
64,000 MILES
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DPW21562
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  • 1 POST
How do you set the idle on a 1976 FI VW? Points and timing has been set to factory specs. The motore idles fast on starting and never drops down. Runs fine but just simpally idles too fast. Is there an idle adjustment on the fuel injection?
May 17, 2013 at 11:55 AM
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EXOVCDS
  • ✓Experienced Mechanic
  • 1,882 POSTS
There's a speed screw at the base of the throttle bore, close to the cold start valve.

Make sure the gas cable is not adjusted too tight and that the throttle position is correct.

There's also a deceleration valve that can stick, causing high idle. Disconnect the vacuum line at the valve to see if the idle drops.
May 19, 2013 at 4:55 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
To add check that auxillary air valve is closed when engine at temp pull hoses and use mirror to see plate
May 20, 2013 at 3:40 AM
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