1991 Pontiac Sunbird idle problem

1991 PONTIAC SUNBIRD
248,748 MILES • 4 CYL • FWD • MANUAL
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LUKE2
  • MEMBER
  • 1 POST
i have replaced the fuel pump. But still does not want to idle properly what els could it be?
Mar 30, 2010 at 2:52 PM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
could be many things, clean the throttlebody, and check the mapp sensor, and pcv valve. also make sure there is no restriction in the air intake. lastly check the egr valve to see if it is stuck and needs cleaning
Mar 30, 2010 at 3:12 PM
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