1992 Honda Civic Cannot control Idle Speed

1992 HONDA CIVIC
Avatar
RAYMAN25
  • MEMBER
  • 1 POST
Engine Performance problem
1992 Honda Civic 4 cyl Front Wheel Drive Automatic

engine idles very high and oscillates high and low.
It continues even when the engine is warmed up. Putting it in drive does not lower the idle speed. It
started all of a sudden.
Mar 9, 2010 at 8:24 AM
Avatar
KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Hi Rayman25,

A vacumn laek has developed and you need to check the source. Check for dislodged vacumn hoses. If none fould, chek the Fast Idle Thermo valve located under the throttle body.
Mar 13, 2010 at 10:12 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle