1st - 5th Generation Civic 1973 - 1995 In the years from 1973 to 1995 Honda released its 1-5th Generation Civics.
1st Gen 1972 - July 1979
2nd Gen 1979 - 1983
3rd Gen 1984 - 1987
4th Gen 1987 - 1991
5th Gen 1992 - 1995

Idle oscillates from 200 to 1000rpms?

 
Thread Tools
 
Search this Thread
 
Old May 18, 2009
  #1  
marklar34's Avatar
Thread Starter
Registered!!
 
Joined: May 2009
Posts: 2
Likes: 0
Rep Power: 0
marklar34 is an unknown quantity at this point
Idle oscillates from 200 to 1000rpms?

I need some help here. My neighbor just called and his 1991 integra ls is not running right. (i know this is a civic forum, but there is only 1/16 the members on acuraforums.com)
Anyways, he states the idle is oscillating back and forth from 200 to 1000 rpm's.
Does anyone have any idea of what the prob. could be?
Old May 19, 2009
  #2  
rednwhite04's Avatar
Registered!!
iTrader: (3)
 
Joined: Oct 2007
Posts: 465
Likes: 0
Rep Power: 230
rednwhite04 will become famous soon enough
Re: Idle oscillates from 200 to 1000rpms?

Idle Air Contol Valve (IAC valve)
Old May 19, 2009
  #3  
gearbox's Avatar
Premium Member
Hey! Look At Me!! I'm a Supporting Member!!
iTrader: (95)
 
Joined: Sep 2002
Posts: 51,241
Likes: 20
From: NV
Rep Power: 811
gearbox has a reputation beyond reputegearbox has a reputation beyond reputegearbox has a reputation beyond reputegearbox has a reputation beyond reputegearbox has a reputation beyond reputegearbox has a reputation beyond reputegearbox has a reputation beyond reputegearbox has a reputation beyond reputegearbox has a reputation beyond reputegearbox has a reputation beyond reputegearbox has a reputation beyond repute
Re: Idle oscillates from 200 to 1000rpms?

well idle fluctuations are usually from a bad TPS (throttle position sensor). replace the whole throttle body if you can, cause its alot easier than trying to install and calibrate a new tps.
Old May 19, 2009
  #4  
marklar34's Avatar
Thread Starter
Registered!!
 
Joined: May 2009
Posts: 2
Likes: 0
Rep Power: 0
marklar34 is an unknown quantity at this point
Re: Idle oscillates from 200 to 1000rpms?

Ok, 2 different answers...... Is there a way to ohm out the tps, and iac valve with a meter to verify which one is the culprit? He doesn't make a great deal of money so i dont want to make him purchase a fsm. Thanks for any and all input!
 
Related Topics
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
SimpleUser
Engine
6
Apr 24, 2021 02:54 AM
lexus300
Wheels and Tires
0
Aug 16, 2015 04:31 PM
lexus300
Archive - Parts for Sale
0
Aug 16, 2015 04:28 PM
napkins
6th Generation Civic 1996 - 2000
2
Aug 12, 2015 04:20 PM
Martinez8o5
Mechanical Problems/Vehicle Issues and Fix-it Forum
10
Jul 31, 2015 10:58 PM




All times are GMT -5. The time now is 06:07 PM.