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

320

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
    1,210
  • #2
    Takoda Fraser
    Reputation
    1,030
  • #3
    Jonathan Ford
    Reputation
    1,020
View All

Related Models For Sale

Used Honda Accord
909 Great Deals out of 78,524 listings starting at $1,295
Used Toyota Corolla
924 Great Deals out of 65,650 listings starting at $1,500
Used Honda Civic Coupe
181 Great Deals out of 11,045 listings starting at $1,695
Used Toyota Camry
1,122 Great Deals out of 77,121 listings starting at $1,400
Used Nissan Altima
1,179 Great Deals out of 74,974 listings starting at $900
Used Hyundai Elantra
624 Great Deals out of 45,835 listings starting at $995
Used Nissan Sentra
691 Great Deals out of 50,397 listings starting at $1,717
Used Honda Accord Coupe
153 Great Deals out of 5,798 listings starting at $1,300
Used Hyundai Sonata
813 Great Deals out of 53,223 listings starting at $795
Used BMW 3 Series
1,123 Great Deals out of 33,113 listings starting at $1,428

Used Cars For Sale

2017 Honda Civic For Sale
36 Great Deals out of 6,118 listings starting at $13,995
2016 Honda Civic For Sale
75 Great Deals out of 2,274 listings starting at $10,995
2015 Honda Civic For Sale
259 Great Deals out of 5,546 listings starting at $8,877
2014 Honda Civic For Sale
119 Great Deals out of 3,178 listings starting at $7,600
2013 Honda Civic For Sale
51 Great Deals out of 1,585 listings starting at $6,900

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.