C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

The engine just stop

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Old Dec 7, 2013 | 11:13 AM
  #21  
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new finding again. just doing some test nothing out of the ordinary. notes relay connector a little dirty. did no cleaning since I have almost no tools here but reconnect

start the car and start ok fuel pump working now. but when step on the gas the car want to die. is like when I step on the gas the electricity stop for a second and fuel pump stop for a second leaving the engine with out gas for a second.

if I let go the fuel pedal the engine get back to normal idle

I think cleaning all the contacts are in order first.

can some one help me. and tell me witch are important connection for the fuel electrical system to clean up?????
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Old Dec 7, 2013 | 01:58 PM
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If your negative cable was hot then you have a short to ground somewhere. Continuing to run the car without this fixed will lead to bigger problems.
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Old Dec 7, 2013 | 03:12 PM
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Do you have a fuel pressure gauge ?
When was fuel filter last changed ?
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Old Dec 7, 2013 | 05:29 PM
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Originally Posted by Corvette40
If your negative cable was hot then you have a short to ground somewhere. Continuing to run the car without this fixed will lead to bigger problems.
The negative battery cable was loose. Need to be tiden. I think that was the problem there.
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Old Dec 7, 2013 | 05:33 PM
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Originally Posted by AGENT 86
Do you have a fuel pressure gauge ?
When was fuel filter last changed ?

Yes i have a fuel preasure gauge. Filter was change about a year ago. The think is the car is in my office far from home. I have to get it home first to do a better job. Tomorro i will go to the car with a big can of conctact cleaner. Se what happend.
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Old Dec 8, 2013 | 01:38 PM
  #26  
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here are the facts.

fuel pump some time work some time dont.


yesterday when I test the car the fuel pump was working. but when I step on the gas the car wants to die on me.

When the problem started the fuel pump was dead. no fuel preasure at all.

I turn the key to on and no sound from the fuel pump.

so I think is not a fuel filter problem or clogged fuel tube

definitive is and electrical problem.

I think somehow when I step on the gas the volts drop and the the fuel pump get no power making the car to want to die.

I test the following all ready

battery engine off. 12.6 volts
battery engine on 13.4 I think. dont remeber now but it was higher than 13.volts
fuel preasure will test tomorrow when I get to the office
what to see what happend when I step on the gas

will report back tomorrow
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Old Dec 9, 2013 | 04:10 PM
  #27  
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ok I got to the car this morning install the fuel preasure gauge and them. no battery. the battery was dead. I took the battery to the shop they say is no good so I get my self a new battery. now I have to wait into a new chance to work on the car.

seen extrange that the battery die in 2 days. it was ok on saturday. I always disconect the battery . but forgot to doit this time.

any way wondering if this have some to do with the all this fuel situation
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Old Dec 10, 2013 | 07:06 PM
  #28  
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I will stard a new thread since i took the fuel preasure and i need to focus on that.
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Old Dec 11, 2013 | 09:33 AM
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Just to clarify on the battery issue. A heavily sulphated battery will cause challenges if not outright die and it sure won't want to take a charge.

So, a couple of questions, How long does the car sit between times when you regularly use it? Have you been using a trick charger occasionally while the car is sitting? Did (or can) you check the fluid level in the battery.

Unless it going to cost you a ton of money I would suggest you get the car towed home so you have all the tools, time and space to work on it. MUCH less stress. When you get it home put a trickle charger on the battery for a couple of days.

Good luck man
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Old Dec 11, 2013 | 12:25 PM
  #30  
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If that battery cable was loose, it may not have been recharging it while running. You might have had enough juice to start but eventually it ran down enough to die. Just a thought.
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