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1991 Chevrolet Corsica engine problems

Tiny
CARPAINTER1
  • MEMBER
  • 1991 CHEVROLET CORSICA
  • 83,000 MILES
Car starts and idles. Begins to miss as fuel is applied. Will jerk going down the highway until you let off the gas. Hesitates a bit as fuel is applied if you give a lot of gas will go fine no noticable jerking. Check engine light may or may not come on. Will begin to run rough if you are waiting in traffic
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Monday, July 15th, 2013 AT 12:04 PM

2 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
How long since overall tune-up? Check for applicable trouble codes. You should be able to check mil codes, yourself. Use a jumper wire between the A & B terminals at the datalink connector. Turn key just till dash lites come on, no further. The mil on the dash starts flashing, you count the flashes to get the codes. Your looking for two digit codes.

You can also check your throttle position sensor.
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Monday, July 15th, 2013 AT 1:11 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Just wanted to show location of A & B terminals at the data link connector.
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Monday, July 15th, 2013 AT 1:23 PM

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