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1992 Pontiac Sunbird sputtering and accelleration

Tiny
ASHJOW
  • MEMBER
  • 1992 PONTIAC SUNBIRD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 207,000 MILES
My car does this sputtering thing when you put your foot on the gas and you can put it to the floor and still won't go over 20mph. We have changed the coil pack, fuel filter, and spark plugs and wires, what could this possibly be.
Saturday, January 5th, 2008 AT 7:00 PM

7 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Is the vehicle running on all cylinders at idle. If yes you could have a restricted cat converter. The easiest way to check is to remove the o2 sensor and see if problem goes away.
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Saturday, January 5th, 2008 AT 7:03 PM
Tiny
ASHJOW
  • MEMBER
  • 5 POSTS
Do you know where the o2 sensor is located on this car. We disconnected the exhaust from the manifold and it still did it then we disconnected what may have been the o2 sensor but not sure where the o2 sensor is located, and then it idled perfect but again when would put on the gas it would sputter
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Saturday, January 5th, 2008 AT 7:16 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Ok problem is not restricted exhaust. Have you tried spraying starting fluid into intake when it bogs to see if it clears up.
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Saturday, January 5th, 2008 AT 7:45 PM
Tiny
ASHJOW
  • MEMBER
  • 5 POSTS
No we have not? Why what else do you think it could be?
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Saturday, January 5th, 2008 AT 7:48 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Low fuel pressure?
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Saturday, January 5th, 2008 AT 7:49 PM
Tiny
ASHJOW
  • MEMBER
  • 5 POSTS
Is there a camshaft sensor for this car? When I look for the parts online there is a crank shaft sensor but only for a 3.1L v6.
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Saturday, January 5th, 2008 AT 8:21 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
No cam sensor
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Saturday, January 5th, 2008 AT 8:34 PM

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