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your 93 cavalier may have a fuel line blockage which prevents the fuel from gettin to the engine. first i would take off the fuel line to the injectors then have somebody crank the engine for like 2 seconds and if the fuel doesnt spit out of the fuel line or barely comes out then you have a fuel line blockage!

check your fuel pressure with a gauge and make sure its within specks, if its low, could be your regulator,

another option is your crankshaft position sensor, if this little unit is done, you get what u got!

you can check your fuel pressure without a gauge,on the fuel rail there is a release valve, looks like a bike tire valve, pop the cap, with safety in mind depress the stem, to c if fuel comes out, member this should b under pressure and may spray, now turn the key to the on position, listen for your fuel pump to kick on , then depress the fuel rail valve again, careful you dont want a gas bath!!!find out from a garage how much the pressure should b and use common sense, lil pressure lil fizz, big pressure big squirt!!! !!!Plugz!!

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โˆ™ 2015-07-17 17:44:59
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Q: Why does your 1993 Cavalier crank and have spark and fuel but not run?
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