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96 Z28 wont start

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  #1  
Old 04-12-2007, 02:57 PM
manning33's Avatar
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Default 96 Z28 wont start

I have spark, fuel and power to the injectors, but none of the injectors are squirting. I can see it pulse with a meter @ the connetor for the injectors when I crank over the motor. I dont get why this thing wont start.

Any suggestions?

Thanks people
 
  #2  
Old 04-12-2007, 06:26 PM
z28pete's Avatar
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Default RE: 96 Z28 wont start

If the injectors are being fired and there is no fuel gets squirted, I would suspect bad fuel pressure, caused by clogged filter,weak pump, or bad regulator.I assume you verified that all injectors are being fired and that none are passing fuel. A meter is not the ideal tool for checking injectors, a set of NOID lites will give you a better picture. The PCM sends out a ground pulse to the injectors, so make sure that all injectors are seeing a steady 12 Volt on the hot side with the key on. Check the two injector Fuses if otherwise.
The other possibility is that with all the failures to start, the plugs are gas fouled and need to be dried out or replaced.
 
  #3  
Old 04-12-2007, 10:32 PM
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Default RE: 96 Z28 wont start

Ok my buddy brought over an injector and harness tester.But before he got there. I got the thing to run. It ran like **** and it smelled like gas out the exhaust. When he got there, pulled on injector connector at a time and only 4 actually dropped the engine speed. Then pulled fuel ran out and pressurized it, and tested one injector at a time. 4 were bad. The guy I got this car from said one day it just started running like ****. OK, so how can 4 injectors go bad at once?

Yes I need a set of injectors. Does anyone want to sell GOOD WORKING stock injectors?
 
  #4  
Old 04-13-2007, 12:41 AM
z28pete's Avatar
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Default RE: 96 Z28 wont start

Were all bad injectors on the same side of the engine? If they were, you may want to check the fuse for that side first.
 
  #5  
Old 04-13-2007, 04:27 PM
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Default RE: 96 Z28 wont start

No, but three were bad one one side.
 
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