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Go about a mile or two and it will cut off?

Tiny
WLLLNGD1
  • MEMBER
  • 1993 CHEVROLET CORVETTE
  • 5.7L
  • V8
  • RWD
  • AUTOMATIC
  • 82,000 MILES
Can be driving and it will jerk on time like a miss fire and go about a mile or two and it will cut off. If I try and start it right back up it will just crank and not start. But if I leave ignition switch in the on position and wait 30 seconds it will start back up and not have any more problems until I let it sit over night again. I replaced the fuel pump but still having same problem. Can you give me any ideas where to start?
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Monday, November 10th, 2014 AT 6:03 AM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I have seen the MAP sensor short out and cause this problem, when the engine will not start unplug the sensor and if it starts the sensor is bad, here is the location in the images below.
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Monday, November 10th, 2014 AT 7:23 AM
Tiny
WLLLNGD1
  • MEMBER
  • 2 POSTS
I have replaced opti spark fuel pump and checked all grounds. I have narrowed it down to a fuel pressure which I assumed it was the MAP so I installed a new one and that fixed it, thanks
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Monday, November 10th, 2014 AT 8:10 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I am glad to hear that have a nice day and use 2CarPros anytime.
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Monday, November 10th, 2014 AT 3:55 PM

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