maybe weak coil output. does van engine have LAMDA fuel injection?

Answered by Docfixit (expert)
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Dont know, how do I check? Thought there was a carb on there, limited knowledge on car workings.

Answered by wildfireduder
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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

Answered by Docfixit (expert)
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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

Answered by wildfireduder
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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?

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

Answered by wildfireduder
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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?

Answered by Docfixit (expert)
18,443 answers provided