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I have 1999 Pontiac Sunfire 2

Tiny
MCKEAN
  • MEMBER
  • 1999 PONTIAC SUNFIRE
  • 138,000 MILES
I have 1999 Pontiac Sunfire 2.2 letter and it has a number 1 cylinder misfire so I changed the spark plugs, wires and one coil and it is still running with a sputter, what do I do to fix it?
Thursday, December 20th, 2012 AT 2:49 AM

5 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
So you still have a P0301?Have you done a compression test?
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Thursday, December 20th, 2012 AT 5:10 AM
Tiny
MCKEAN
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No how do I do that?
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Thursday, December 20th, 2012 AT 5:22 AM
Tiny
SATURNTECH9
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You can rent a compression tester at auto zone remove all the spark plugs then screw the tester into each each spark plug hole. When testing each cylinder you hold the gas pedal to the floor and crank it over ten revolutions. You can feel the engine kick every revolution that is complete.
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Thursday, December 20th, 2012 AT 5:24 PM
Tiny
MCKEAN
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  • 3 POSTS
Ok thank you could it also be a problem with the computer as well?
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Thursday, December 20th, 2012 AT 11:15 PM
Tiny
SATURNTECH9
  • MECHANIC
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Yes but you have to eliminate the basics first fuel spark compression etc before looking elsewhere.
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Friday, December 21st, 2012 AT 1:56 AM

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