Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

yes, another 2K idle thread...

Thread Tools
 
Search this Thread
 
Old Nov 29, 2010 | 04:53 PM
  #1  
ries's Avatar
Thread Starter
On The Tree
iTrader: (4)
 
Joined: Jun 2010
Posts: 157
Likes: 1
From: Yuma, AZ
Default yes, another 2K idle thread...

Having issues with my cars idle and dont know what the problem is. Cold start my car idles fine between 800-900rpms. Once I drive the car and it gets to operating temp if I come to a stop the idle hangs anywhere from 1500-2000rpms. It doesnt matter what gear Ive come from, if Im in nuetral or in gear with the clutch pushed in.

Also seems like the cooler weather has made it more noticeable. If I shut the car off and restart it after its been at operating temp it will idle fine. What could my problem be? Vacuum leak? Bad sensor somewhere? Any help would be appreciated. Car is an '01 with a manual trans. Mods are in sig and car has been tuned.

Chris
Reply
Old Nov 29, 2010 | 05:33 PM
  #2  
runtwrestlin's Avatar
Launching!
iTrader: (3)
 
Joined: Apr 2008
Posts: 223
Likes: 0
From: FL
Default

When did you first notice the problem? Was it after you installed the LT's, or any other significant thing? I've heard about the throttle body sticking and causing high idle issues. Hopefully someone smarter than me will chime in for ya
Reply
Old Nov 29, 2010 | 05:39 PM
  #3  
jsteele90's Avatar
11 Second Club
iTrader: (13)
 
Joined: Mar 2007
Posts: 2,870
Likes: 2
From: delaware
Default

id check for vacumn leaks first.
Reply
Old Nov 29, 2010 | 08:35 PM
  #4  
ries's Avatar
Thread Starter
On The Tree
iTrader: (4)
 
Joined: Jun 2010
Posts: 157
Likes: 1
From: Yuma, AZ
Default

Didnt happen after the install of anything in particular...just sort of started happening recently.

Where should I start with vacuum leaks? Is there a "common" problem area?

Thanks,
Chris
Reply
Old Nov 29, 2010 | 09:40 PM
  #5  
180ls1's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Jun 2007
Posts: 1,528
Likes: 1
From: San Diego
Default

how good is the tune on your car?
Reply
Old Dec 1, 2010 | 09:05 PM
  #6  
ries's Avatar
Thread Starter
On The Tree
iTrader: (4)
 
Joined: Jun 2010
Posts: 157
Likes: 1
From: Yuma, AZ
Default

Originally Posted by 180ls1
how good is the tune on your car?
The tune should be fine...it has had the same tune with no modding done and it ran fine before, so Im thinking it has to be something mechanical or a bad sensor. I will be purchasing an EFI Live V2 later this week so I can log, review and modify the tune if there is a problem.

Also, I checked for vaccum leaks and didnt find any...what other possible problem areas should I check?

Chris
Reply
Old Dec 1, 2010 | 09:18 PM
  #7  
180ls1's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Jun 2007
Posts: 1,528
Likes: 1
From: San Diego
Default

have you tried unplugging your MAF to see how that effects the idle?
Reply
Old Dec 1, 2010 | 09:38 PM
  #8  
ries's Avatar
Thread Starter
On The Tree
iTrader: (4)
 
Joined: Jun 2010
Posts: 157
Likes: 1
From: Yuma, AZ
Default

Originally Posted by 180ls1
have you tried unplugging your MAF to see how that effects the idle?
not yet. I'll try it tomorrow...
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 05:03 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE