1993 Nissan Altima no firing

234,000 MILES • 4 CYL • 2WD • MANUAL
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KYLEMAC
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ok well ive checked all fuses an relays they all are fine ive changed the computer the coil pack cap an rotor but still its not firing but does crank over
Mar 26, 2010 at 5:36 PM
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RASMATAZ
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Did you have a check engine light come on or has flashed prior to this problem and when was your last tune-up?

Cranks but no start condition:

Fuel and Spark:
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.
Mar 26, 2010 at 10:17 PM
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KYLEMAC
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ok tyvm for ur help umm no check engine light i got this as not running the thing is there is no spark wat so ever it has power to the coill pack but yet none an i kno the pack is good an also it doesnt have a crank sensor didnt happen till 95 all fuses an relays are fine tht should b used for the ignition
Mar 29, 2010 at 5:16 PM
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RASMATAZ
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also it doesnt have a crank sensor -It does have one its called crank angle sensor in the distributor
Mar 29, 2010 at 6:04 PM
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KYLEMAC
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ok then that makes more sense so if the distributor is shot and those sensors arent working then is tht telling the computer not to fire properly and to not let the coil spark?
Mar 30, 2010 at 7:13 PM
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RASMATAZ
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You need to perform some testing here such as the coil and distributor pick-up coil
Mar 31, 2010 at 8:56 AM
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