SPUTTERING VW VAN

  • Tiny
  • wildfiredude
  • 1985 Volkswagen Van
  • 4 CYL
  • 2WD
  • manual
  • 120,000 miles

1985 1.9L VW van, starts/idles OK, sputters when accelerating through 2600 RPM then fine 3000 and above. Just replaced fuel pump, filter a little while ago.?

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Friday, November 19th, 2010 AT 9:41 PM

7 Replies

  • Tiny
  • Docfixit
  • Expert
  • 18,993 posts

Maybe weak coil output. Does van engine have LAMDA fuel injection?

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Friday, November 19th, 2010 AT 9:45 PM
  • Tiny
  • wildfireduder
  • Member

Dont know, how do I check? Thought there was a carb on there, limited knowledge on car workings.

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Saturday, November 20th, 2010 AT 12:38 AM
  • Tiny
  • Docfixit
  • Expert
  • 18,993 posts

Pull coil wire hold 1/4 in. From block have assistent crank spark should crack and be blue/white. Should be fuel injected. Provind all info or numbers on engine

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Monday, November 22nd, 2010 AT 2:20 PM
  • Tiny
  • wildfireduder
  • Member

Another symptom--doesn't always go back to 900 rpm idle, sometimes stays at 2000, thinking gunk in jet carb or injectors? Will do coil check soon. Thanks

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Friday, December 3rd, 2010 AT 7:34 PM
  • Tiny
  • wildfireduder
  • Member

Finally got around to the van with a little good weather--coil spark fine, did find vacuum leak, fixed, solved the sluggishness. Engine still accelerates/decelerated continuously when warm and at idle--any ideas?

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Sunday, January 30th, 2011 AT 2:55 PM
  • Tiny
  • wildfireduder
  • Member

Any idea on why the van RPMs fluctuate up and down continuously when engine warm and at idle? Thinking idle control ____?

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Friday, February 11th, 2011 AT 6:39 PM
  • Tiny
  • Docfixit
  • Expert
  • 18,993 posts

Idle stop screw been moved? Check resistence at air flow meter see diagram. Measure resistence from pin 6 to 9 should be 560 ohms next measure across pins 7-9 move aie flap does resistence go up and down?

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Friday, February 11th, 2011 AT 9:49 PM

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