1984 Honda Accord idles too fast

1984 HONDA ACCORD
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FOURBEE
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  • 2 POSTS
I have a 1984 Honda Accord, 1.8L 4 cyl., w/5 speed manual tranny. One day it was fine, the next day the idle goes up to 3000 rpm. I replaced the carb (3 bbl Keihin) and the problem remains. It runs well and has 205,000 miles, but when you stop, it idles up to 3000 rpm. I can't figure it out. What should I do?
Jul 12, 2007 at 9:04 AM
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BRUCE HUNT
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  • 3,754 POSTS
I might check the PCV and other vacuum lines.
Jul 17, 2007 at 3:23 AM
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FOURBEE
  • MEMBER
  • 2 POSTS
I replaced the pvc hose and the idle has gone down to 2500 rpm. Do you think the o2 sensor could cause the problem?
Jul 17, 2007 at 3:10 PM
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BRUCE HUNT
  • ✓Experienced Mechanic
  • 3,754 POSTS
Yes it could but would I start there? No. Is the idle constant? Make sure you check all vac hoses for connection and wear.
Jul 18, 2007 at 1:42 AM
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