Idle air control valve

Asked by Oct 24, 2016 at 07:27 PM about the 1994 Honda Civic DX

Question type: Maintenance & Repair

94 civic dx air idle control valve seems to
be messed up. Engine idle fluctuating and
when it was doing so I placed my finger
over the top hole in the throttle body thing
and it started idling as normal. I removed it
and it is clean. I saw online you can test it
by connecting 12 volts to where the posts
for the plug. I did so one time and the thing
inside moved. Does that mean the wiring is
bad or maybe fuse or relay or could it still
be bad?

1 Answer

310

Idle air control.motors are (step motors )they operate from 0-100-0 . Each step (increment ) is controlled by the Ecm .the motor mAY move but that doesn't mean it is moving correctly ,we watch the on Pids to see of they are skipping steps when they do we replace them .. try cleaning all the ports in amd around the throttle including the throttle plate .they can get heavily varnished especially at top amd bottom where they stick aND won't close completely. Which will cause rough idle ,quitting at stop lights ,hard starting etc. Good luck

Your Answer

Honda Civic Experts

  • #1
    Tom Demyan
    Reputation
    1,120
  • #2
    Takoda Fraser
    Reputation
    1,030
  • #3
    Jonathan Ford
    Reputation
    1,010
View All

Related Models For Sale

Used Honda Accord
1,092 Great Deals out of 65,131 listings starting at $561
Used Toyota Corolla
866 Great Deals out of 59,543 listings starting at $850
Used Honda Civic Coupe
173 Great Deals out of 12,882 listings starting at $1,695
Used Toyota Camry
951 Great Deals out of 90,507 listings starting at $300
Used Nissan Altima
1,087 Great Deals out of 78,999 listings starting at $1,695
Used Hyundai Elantra
578 Great Deals out of 51,780 listings starting at $1,780
Used Ford Mustang
562 Great Deals out of 36,313 listings starting at $1,500
Used Honda Accord Coupe
161 Great Deals out of 7,523 listings starting at $1,991
Used BMW 3 Series
1,089 Great Deals out of 33,688 listings starting at $1,000
Used Hyundai Sonata
818 Great Deals out of 54,820 listings starting at $1,499
Used Nissan Sentra
705 Great Deals out of 52,053 listings starting at $600

Used Cars For Sale

2017 Honda Civic For Sale
40 Great Deals out of 28,503 listings starting at $12,991
2016 Honda Civic For Sale
101 Great Deals out of 2,718 listings starting at $10,995
2015 Honda Civic For Sale
135 Great Deals out of 4,569 listings starting at $8,495
2014 Honda Civic For Sale
177 Great Deals out of 4,951 listings starting at $6,980
2013 Honda Civic For Sale
57 Great Deals out of 1,661 listings starting at $6,750

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.