Mechanics

SPUTTERING VW

1985 Volkswagen Van • 4 cylinder 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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Wildfiredude
November 19, 2010.




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

Docfixit
Nov 19, 2010.
Dont know, how do I check? Thought there was a carb on there, limited knowledge on car workings.

Tiny
Wildfireduder
Nov 20, 2010.
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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Docfixit
Nov 22, 2010.
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

Tiny
Wildfireduder
Dec 3, 2010.
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?

Tiny
Wildfireduder
Jan 30, 2011.
Any idea on why the van RPMs fluctuate up and down continuously when engine warm and at idle? Thinking idle control ____?

Tiny
Wildfireduder
Feb 11, 2011.
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?

Docfixit
Feb 11, 2011.

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