Question about Cars & Trucks
New pump is putting out more preasure now so the needle and seat valve in the carby is having difficulty regulating fuel levl in carby
Posted on Nov 28, 2012
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Posted on Jan 02, 2017
Not sure on that model what controls the injector pulse, but most vehicles either use the signal from the crankshaft position sensor or a cam position sensor. You should use a LED testlight, (NOT A BULB TESTLIGHT!!) and backprobe the injector terminals (with the other lead of the testlight to ground) while cranking the engine over. If the light flashes on one of the terminals, then you are getting injector pulse, and the fault lies elsewhere. If not, then you will need to replace whatver sensor is used to provide engine position signal on that model. Also, check the wiring to that sensor. Some vehicles have problems with the crankshaft pulley harmonic balancer failing and damaging either the body of the crank position sensor or its wiring.
Posted on Nov 02, 2008
Check for vacuum leaks, with engine at idle, go around engine and wiggle EVERY vacuum hose(especially near connections) you will probably find one that causes the issue to occur.
Posted on Apr 13, 2009
Possible injector failure. locate by disconnecting injectors one at a time. The one that makes no change is the questionable. Status of spark plugs need chkg also. pull the plugs an the one that looks washed is questionable good luck
Posted on May 22, 2009
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