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

300

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

Add photo

Related Questions

Search Honda Civic Questions

Honda Civic Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,000
#1 Takoda Fraser
Takoda Fraser
Reputation 1,000
#3 Jonathan Ford
Jonathan Ford
Reputation 980
View All

Related Models For Sale

Used Honda Accord
1,014 Great Deals out of 77,062 listings starting at $999
Used Honda Civic Coupe
215 Great Deals out of 16,721 listings starting at $1,950
Used Toyota Corolla
927 Great Deals out of 70,266 listings starting at $1,500
Used Toyota Camry
1,125 Great Deals out of 91,055 listings starting at $1,222
Used Nissan Altima
1,232 Great Deals out of 79,821 listings starting at $1,500
Used Hyundai Elantra
631 Great Deals out of 42,509 listings starting at $1,300
Used Honda Accord Coupe
187 Great Deals out of 10,788 listings starting at $1,200
Used Ford Mustang
623 Great Deals out of 46,672 listings starting at $750
Used BMW 3 Series
962 Great Deals out of 30,720 listings starting at $1,000
Used Nissan Sentra
550 Great Deals out of 52,424 listings starting at $1,999
Used Hyundai Sonata
888 Great Deals out of 46,347 listings starting at $1,000

Used Cars For Sale

2017 Honda Civic For Sale
4 Great Deals out of 63,314 listings starting at $16,899
2016 Honda Civic For Sale
100 Great Deals out of 2,796 listings starting at $12,999
2015 Honda Civic For Sale
122 Great Deals out of 3,869 listings starting at $10,283
2014 Honda Civic For Sale
285 Great Deals out of 7,325 listings starting at $7,890
2013 Honda Civic For Sale
77 Great Deals out of 2,321 listings starting at $7,499

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.