idle problem

1994 HONDA CONCERTO
267,987,452 MILES • 4 CYL • FWD • MANUAL
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ALONZO C
  • MEMBER
  • 1 POST
but when your at a stop and the car is warm it still idles from 1 to 2 rpm
Nov 13, 2010 at 5:20 PM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS

Check the Fast Idle Thermal Valve. Ensure its coolant hoses are not clogged and valve closes when engine is warmed up.
Check coolant level.
Check for vacuum leakages.
Check idle adjust screw, ensure it has not worked itself loose.
Nov 13, 2010 at 11:25 PM
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