Idle air control valve
30

Asked by HunterAllen 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
1,250

Evilgenius68 answered 7 years ago

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

2 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • Idle air control valve 1 Answer

    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 ...

    1994 Honda Civic DX

    -

    Maintenance & Repair

  • idle air control valve 12 Answers

    location for the idle air control valve

    1998 Dodge Dakota

    -

    Maintenance & Repair

  • idle air control issues 4 Answers

    (code 0505, pcv air leakage). Have replaced IAC valve unit with new one, checked all vacuum hoses, no leaks. Cleaned out air intake on throttle body using CVC throttle cleaner. Cleaned air intake se...

    2002 Honda CR-V EX AWD

    -

    Maintenance & Repair

  • Idle issues 1 Answer

    Idle is irregular. Starts, idle normal for a bit then gets irregular. opened the bleeder valve for coolant and filled until it started coming out then closed it, took off the fast idle thing and t...

    1994 Honda Civic DX

    -

    Maintenance & Repair

  • My 99 Honda Civic revs up when I start it and continues to Rev up until I shut it off. I have no control of idle with gas pedal or otherwise. 1 Answer

    I put my hand over the top of the TB and it was sucking so much air it almost made me bleed but I was able to control idle.

    1999 Honda Civic

    -

    Maintenance & Repair

Own this car?

Share your experience with others.

1994 Honda Civic

Write a car review

Review another car

Shortcuts

Search Honda Civic Questions

CarGurus Experts

  • #1
    ColdinMA
    Reputation
    2,370
  • #2
    Guru9CNGV
    Reputation
    2,110
  • #3
    GuruDMD1V
    Reputation
    2,090
View All

Know more, shop wisely

Search

Related Models For Sale

Used Honda Accord
1,543 Great Deals out of 30,088 listings starting at $450
Used Toyota Corolla
1,539 Great Deals out of 24,142 listings starting at $1,450
Used Toyota Camry
2,041 Great Deals out of 34,692 listings starting at $950
Used Honda Civic Coupe
154 Great Deals out of 1,898 listings starting at $750
Used Hyundai Elantra
926 Great Deals out of 27,037 listings starting at $1,750
Used Nissan Altima
1,336 Great Deals out of 38,116 listings starting at $1,150
Used Ford Mustang
908 Great Deals out of 22,679 listings starting at $1,000
Used BMW 3 Series
1,103 Great Deals out of 12,868 listings starting at $879
Used Toyota Tacoma
1,991 Great Deals out of 33,867 listings starting at $2,990

Used Cars for Sale

2024 Honda Civic For Sale
44 Great Deals out of 14,016 listings starting at $23,645
2023 Honda Civic For Sale
82 Great Deals out of 870 listings starting at $20,775
2022 Honda Civic For Sale
151 Great Deals out of 2,128 listings starting at $17,771
2021 Honda Civic For Sale
177 Great Deals out of 2,475 listings starting at $13,500
2020 Honda Civic For Sale
139 Great Deals out of 2,197 listings starting at $11,994

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. Content will be removed if CarGurus becomes aware that it violates our policies.