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

ignition/fuel experts, I need help

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Old Apr 9, 2005 | 02:04 PM
  #1  
96redvette's Avatar
96redvette
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From: Washington PA
Default ignition/fuel experts, I need help

I have a 96 auto with high miles, replaced the opti, entire ignition 1 1/2 years ago. Just got it out of storage last week, and noticed a slight miss when the car is in gear and stopped. I saw some arcing on the plug wires, so I just replaced the wires, plugs and coil a few nights ago.

Nothing changed, it still hesitates as it did before. What else could it be?

Injectors?

Thanks!
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Old Apr 9, 2005 | 02:22 PM
  #2  
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Could be, but even the slightest miss on a '96 should generate a code, so using an OB2 Reader to scan it may pinpoint the problem. Generally, if it's a 300, I'd suspect an injector or fuel problem; 301 to 308, ignition, though it might still be a clogged or weak injector, so I'd also check resistance across the injector terminals (hot & cold) for the identified cylinder. Also, check that the gas cap is on tight, especially if the problem is after the motor is warmed up or if it started after your last fillup.
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Old Apr 9, 2005 | 05:23 PM
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Forgot to mention I did get a code 300 last week. I have a scanner, and scanned it twice today and nothing came up.

How do you tell if an injector is bad, do you check the voltage or resistence on them?

Thanks for the help Suncr
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Old Apr 9, 2005 | 06:37 PM
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Fuel starts going bad in about 90 days. You could have water in the fuel from the winter storage. just something to check.
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Old Apr 9, 2005 | 08:31 PM
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Sniper, I thought the same thing so I filled the tank up yesterday. I will put some miles on it tomorrow and see what happens
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Old Apr 10, 2005 | 11:19 AM
  #6  
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C4 Corvettes are known for the drain from the gas tank filler boot plugging up -- this allows water to collect around the gas tank filler neck and seep into the tank.
When I wash my car, I always make sure I can see the water draining down that drain tube.

The other other thing I do is make sure water does not collect in the hood latch sockets on the body.

Tom Piper
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