08 GT, Idle question and AFM question - Pontiac G8 Forum: G8 Forums - G8Board.com
 
Go Back   Pontiac G8 Forum: G8 Forums - G8Board.com > G8 Tech > Tech Lounge

Tech Lounge First Mods / Basic Tech Questions

» Auto Insurance
» Vendors
Reply
 
Thread Tools
Old 11-19-2012, 09:33 PM   #1
AlbertGT
Member
 
AlbertGT's Avatar
 
Join Date: Jan 2012
Posts: 84
Default 08 GT, Idle question and AFM question

I am new to the G8 and have noticed that that at idle it feels like the engine has a miss but I have no CEL on.

How can I get the AFM to not be so sensitive? I want it to stay engaged when driving normal, it seems like it is only engaged when I am slowing down but when I touch the gas it comes out. I want to take more advantage of that system.

Thats it for right now

Thanks
Albert
__________________
Albert



2008 G8 GT tastefully modded, dyno 370 HP 390 TQ
R.I.P. 2008 G8 GT, all stock
AlbertGT is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-20-2012, 12:20 AM   #2
todds87ss
Car RamRod
 
todds87ss's Avatar
 
Join Date: Aug 2008
Posts: 1,712
Default

Albert. Congrats on the G8!.
The "miss" that you refer to is very normal. If the ECU senses a real miss, you will pull a check engine light.

As to your AFM question, I have tried a few times to improve my tune in this area. It is very difficult to get it to stay "in" longer and still retain good driveability, but a good tuner can make small changes to improve the feel. A tune (not handheld) is the only way to change parameters of AFM.

Again, Welcome!
__________________
You can choose to be anything you want on the internet...why choose to be so stupid!
todds87ss is offline   Reply With Quote
Old 11-20-2012, 03:57 AM   #3
AlbertGT
Member
 
AlbertGT's Avatar
 
Join Date: Jan 2012
Posts: 84
Default

Thank you Todd, what is the average price to have it tuned? And what's a good place to go? I just found out a place called Redline motorsports I think, is good with these cars.
Thanks again
__________________
Albert



2008 G8 GT tastefully modded, dyno 370 HP 390 TQ
R.I.P. 2008 G8 GT, all stock
AlbertGT is offline   Reply With Quote
Old 11-20-2012, 07:46 AM   #4
hazards280
Senior Member
 
Join Date: Sep 2012
Location: Tri-Cities MI
Posts: 340
Default

Quote:
Originally Posted by AlbertGT View Post
Thank you Todd, what is the average price to have it tuned? And what's a good place to go? I just found out a place called Redline motorsports I think, is good with these cars.
Thanks again
Where are you located Albert? If your around Michigan theres a few reputable places you could go to. Tunes can run as low as $250 and up to $450-$500. With the addition of a CAI (Read through the numerous threads, I personally went with the Roto-Fab due to build quality) and a tune, the car will feel much much different. As well, you will see some nice gains!
__________________

2009 Pontiac G8 GT (MGM, Premium Package) -- Rotofab Intake, 20% Tint, Solo Mach Short Unbalanced Catback w/3.5" Tips, Cortex RF 93 Oct Tune, GXP Diffuser, GXP Brembos, MS Camaro Rims, Escort 9500ix, 4500k HID's
2011 Jeep Grand Cherokee Overland Summit - DD
2008 Kawasaki KFX450R -- Stock for now

Quote:
Originally Posted by mikekey View Post
Rule of thumb, stupid people out number smart people by a factor of 10 to 1.
hazards280 is online now   Reply With Quote
Old 11-20-2012, 07:57 AM   #5
AlbertGT
Member
 
AlbertGT's Avatar
 
Join Date: Jan 2012
Posts: 84
Default

I am on the east coast of Florida just about an hour north of West Palm Beach. I was thinking about a ram air setup... Thanks
__________________
Albert



2008 G8 GT tastefully modded, dyno 370 HP 390 TQ
R.I.P. 2008 G8 GT, all stock
AlbertGT is offline   Reply With Quote
Old 11-20-2012, 11:34 AM   #6
GT Drew
Senior Member
 
Join Date: Nov 2009
Location: Toronto, Canada
Posts: 2,305
Default

Start with checking the plugs. Mine had a rough idle when NEW. Re-gapped all to .040 and it smoothed out. Only the occational hick-up now.
They might not even be the original Iridium plugs in there. Worth a check
before spending any money.
__________________
'09 SRM GT. VCM Intake, Cortex, Solo H/F Cats, Solo Mach Balanced system. Whiteline Sway bar & Rear Subframe Bushing, Mevotech arms.
GT Drew is offline   Reply With Quote
Old 11-20-2012, 01:25 PM   #7
GMCustomerService
Senior Member
 
GMCustomerService's Avatar
 
Join Date: Oct 2010
Location: Michigan
Posts: 1,556
Default

Congratulations, AlbertGT!!!! Is this an early Christmas present? LOL

Michelle, GM Customer Service
GMCustomerService is offline   Reply With Quote
Old 11-20-2012, 06:18 PM   #8
AlbertGT
Member
 
AlbertGT's Avatar
 
Join Date: Jan 2012
Posts: 84
Default

I will GT, it is odd that a car with 16K or nw would have a bad plug or something..

Yes Michelle it is a birthday/christmas gift lol.. Thanks
__________________
Albert



2008 G8 GT tastefully modded, dyno 370 HP 390 TQ
R.I.P. 2008 G8 GT, all stock
AlbertGT is offline   Reply With Quote
Old 11-21-2012, 12:33 AM   #9
todds87ss
Car RamRod
 
todds87ss's Avatar
 
Join Date: Aug 2008
Posts: 1,712
Default

I think you have several good shops in your neck of the woods.
Along with redline, Lashway is another to look at. Check reviews.
Price depends on what you get. I have 600 into my tune, but I have a laptop interface to log stuff and check parameters.
Some questions for the tuner: what is the cost for a re-tune if more mods are added? Is the tune locked (not desirable if you need to change it eventually)? Will the tune be dyno only, or also include part throttle drivability tune? Will they supply before and after dyno graphs? and is the trans tune included?
If all of that is a yes, you can expect to shell out about $500. Best money spent on the car.
__________________
You can choose to be anything you want on the internet...why choose to be so stupid!
todds87ss is offline   Reply With Quote
Old 11-21-2012, 07:02 AM   #10
AlbertGT
Member
 
AlbertGT's Avatar
 
Join Date: Jan 2012
Posts: 84
Default

Thanks Todd, that's good advice to someone new to the tuning era. For $400.00ish it does include the intake, a 160 t-stat motor and tranny tune , he said if after I get headers and cat back it will be a couple hundred more for a retune.
__________________
Albert



2008 G8 GT tastefully modded, dyno 370 HP 390 TQ
R.I.P. 2008 G8 GT, all stock
AlbertGT is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not 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

Forum Jump

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 01:46 PM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2007-2008, G8Board.com

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.