LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Fuel is good what should I try Next?

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Old Mar 19, 2004 | 03:43 PM
  #1  
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Fuel is good what should I try Next?

Changed the fuel and the fuel filter. What else should I try?? Gonna swap out the pcm tonite see if that's it. Anything else you all think I should try? Im Gonna go get a soundclip.
Still Not Firing.
Its getting fuel and spark...

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Old Mar 19, 2004 | 05:16 PM
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Who is playing bongos in the background??

Is that coming from the engine?

Do you have an auto tranny? Maybe that is something beating on the flexplate inspection cover. Might also be the timing chain flogging the oil pan.

Does it sound to you like it is spinning abnormally fast? Have you taken off a valve cover to verify all the rockers are moving when you engage the starter?
Old Mar 19, 2004 | 06:15 PM
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Those are pops coming outta the exhaust pipes.Im gonna pull the covers sunday and check it out.
Old Mar 19, 2004 | 08:23 PM
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Are those open headers or something? Could be a dying opti.
Old Mar 19, 2004 | 09:29 PM
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he replaced the opti a few months ago.. well. if I remebeer right just the cap and rotor kit. He said he has spark so the opti is intact. he also said he is getting fuel but I wanted him to run a pressure test. I also wanted him to chek for injector pulse so we could go from there. come on corey.. you can do it, I know you can
Old Mar 19, 2004 | 09:37 PM
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I have the complete new opti not the kit.
Old Mar 19, 2004 | 10:15 PM
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did you just replace the opti spark? sound like your firing order or ignition timing is off. compression sound ok if its poping you should have fuel.
Old Mar 19, 2004 | 10:16 PM
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good. I'm glad I hamered that into you enough till ya did it.

Did you check injector pulse and hot feed yet?
Old Mar 19, 2004 | 10:18 PM
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Test light on the negitive and probe the green wire. I think thats how i recall doing it last time. Refresh my memory.
Old Mar 19, 2004 | 10:22 PM
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test light hooked to ground. turn key to on just before start should have hot on the pink wires.


testlight on hot, car cranking while looking for flashing ground on green wire.


here is the link again if you need it http://mainstreamtopics.com/forum/in...p?showtopic=78
Old Mar 24, 2004 | 11:44 AM
  #11  
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All the rockers are good. Fuel Pressure is good. Injector pulse is good.

Shoebox got any idears?
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