1992 pontiac bonneville

1992 PONTIAC BONNEVILLE
100,000 MILES • 6 CYL • FWD • AUTOMATIC
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BIGPIECE
  • MEMBER
  • 1 POST
i have a 1992 pontiac bonneville 3.8 non super charged.. it runs good at an idle but when i go to press down the gas to acclereate it has a small back fire with spitting and aputterinig but when im at speed it runs fine.. need help please
Nov 26, 2010 at 11:36 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Check the fuel pressure if okay -test the throttle position sensor and manifold absolute pressure sensor
Nov 26, 2010 at 11:38 AM
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OBXAUTOMEDIC
  • ✓Experienced Mechanic
  • 3,711 POSTS
Hello,

When was your last tune up, plugs, cap and Rotor? If has been a while that is were I would start. Also if the wires are original then I would replace them or if they show signs of cracking or dried out.

.
Nov 26, 2010 at 11:40 AM
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