my car wont run... its got spark. fuel. air. but it still wont run - LS1TECH

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my car wont run... its got spark. fuel. air. but it still wont run

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Old 11-27-2010, 05:48 PM   #1
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Default my car wont run... its got spark. fuel. air. but it still wont run

so im at work and im having one of my buddys change the oil in my 1995 formula firebird... he changes the oil and asks me to start the car for a few seconds and i did and it ran fine... then i left and he tried to back it out and it wont start.. it turns over, its getting gas, its got spark, but its still not running... any ideas or suggestions of whats going on. thanks
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Old 11-27-2010, 11:04 PM   #2
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Is the security light flashing? Do you know if you have injector pulse? Have you actually put a guage on the car to check the fuel pressure? What's the pressure at when cranking?
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Old 11-27-2010, 11:56 PM   #3
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if it were a anti-theft problem, the starter wouldnt turn. put a test light on an injector plug as you turn it over. assuming you already checked fuel pressure.
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Old 11-28-2010, 12:45 AM   #4
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You may have fuel pressure, but that doesn't mean that the injectors are pulsing.
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Old 11-28-2010, 01:01 AM   #5
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^^^^That, and you have to be sure that if the car is "getting" fuel that it's the correct amount, and at the proper pressure...
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Old 11-28-2010, 03:09 PM   #6
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so i ran by work today and the car started right up and spat out a big puff of smoke and when i revved it it shot out more smoke.. its not a ton of smoke but its not normal at all... so i went got lunch and came back and it started right up again the smoke isnt as thick i guess but its still there.. and the check engine light is now on .. im gonna let them hook the computer thing on and run the codes.. and we will see.. wierd.... thanks for the imput though guys
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Old 11-28-2010, 03:37 PM   #7
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If you really had fuel/air/spark....you'd be on your way.

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