LS2 Rough Idle and surging under light accereation - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 10-21-2016, 01:05 PM Thread Starter
 
Join Date: Oct 2016
Location: Newport, MI.
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
LS2 Rough Idle and surging under light accereation

Hello fellow GTO brothers. I need your help on a issue I'm having with my 06 GTO. I have a very pampered 06 6 Spd with 60k on it. When I pulled it out to gas it up for the Woodward Cruise car ran perfect. I filled it up with 100% gas just a few miles from my house. On my way home, several times I jumped on it ratcheting it thru 2 or 3 gears, nothing over 5500 rpm or so and parked it. When I pulled it out to go to the cruise, I noticed it had a rough idle. When I hit the road under light acceleration it seemed to surge and buck but if I got on it , it ripped as always. I thought possible bad gas so I burned thru that tank, refilled and added Royal Purple inj. cleaner. Long story short no change. Ran another tank thru it with no change. Almost seems to have a miss at idle. Heard about weak stock valve train components. No valve train noise. No check engine light. I recently got lazy with battery tender and have been disconnecting battery for long periods of time. Heard ECM could loose calibration of sensors and run erratic. Not sure how true. Baffled
Hwy Goat is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 12-04-2016, 12:06 PM
 
Grambo427's Avatar
 
Join Date: Jan 2013
Location: Bailey, NC
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If you have access to a scan tool it would be very helpful to look at some live engine data. I Recently have had issues with similar symptoms and looks like i'm going to be buying 8 injectors. But have someone get an OBDII scanner on it and check the 02 sensors, Throttle position and fuel trims. That will help to indentify the issue before you spend a lot of money.
Grambo427 is offline  
post #3 of 3 (permalink) Old 12-24-2016, 06:07 PM Thread Starter
 
Join Date: Oct 2016
Location: Newport, MI.
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks for info. I also suspect o2 sensors. Plan on replacing all of them when weather breaks. R U familiar with any of the tuner software on the market ( Hp Tuners) With that software can I look at all signals for engine management? Any preference for these tuner software . Hwy Goat
Hwy Goat is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 2004-2006 GTO > Service, Maintenance and Technical Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Rough Idle Lanceth101 Drive train, suspension, alignment and brakes. 3 11-16-2013 03:58 PM
Rough idle BLUE04 Service, Maintenance and Technical Discussion 1 01-26-2011 08:50 AM
Rough Idle JohnC Service, Maintenance and Technical Discussion 11 02-10-2008 09:14 AM
rough idle EDawg Service, Maintenance and Technical Discussion 4 02-18-2007 03:55 PM
Rough Idle Kid In Me 2004-2006 GTO General Discussion 17 04-22-2006 04:16 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome