Question about 2002 Hyundai Accent

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No pulse to injectors

Got fuel and spark but wont start put new crankshaft sensor in and still wont start

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Take the vehicle into a Hyundai Service Center (dealership), pay the diagnostic fee. They will tell you EXACTLY what the problem is and what's needed to fix it (parts, labor, tax, time-frame, etc.). This way you will find out which parts, if any, you need to fix it - perhaps fix it yourself.

Posted on Jul 18, 2009

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Posted on Jan 02, 2017

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97 oldsmobile achieva wont fire changed coil pack spark plugs cam sensor still wont start


Make sure battery has a full charge and battery connections all good.
If it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure and fuel injector pulse.
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1991 chevy lumina will crank but wont start I checked the fuel pressure it squirts out good and the fuel pump sounds strong I checked spark on the coil its sparking good! I charged the battery its fully...


If you have spark at all the plugs, the crank sensor should be ok. You should use a gage to check fuel pressure? I don't know engine size? For the 3.1L engine, my info says 40--46 psi.
It is possible to have spark at the plugs, but, the computer doesn't see rpm signal. If that is the case, no fuel injector pulse. The purple wire with white tracer carries rpm signal from ignition module to pcm, that wire has dc pulse, engine cranking. If nothing there, have to check ignition module.
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The fuel pump most likely is not the problem,replace the crankshaft sensor,it tells the computer to pulse the injectors,and the spark.

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I have a Chevy Beretta 1992 that won't start. It has power to the ECM, but no power to the crankshaft sensor or the coil packs. Is the problem in the ECM?


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Then the fuel injectors are not pulsing,replace the crankshaft sensor,it controls the spark,but also the pulse for the injectors.

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