Go Back   North East F-Body Association > F-Body Garage > Fourth Generation

Reply
 
Thread Tools Display Modes
  #1  
Old 07-13-2010, 10:31 PM
Timmy_Jones Timmy_Jones is offline
Newbie
 
Join Date: Mar 2010
Posts: 8
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
Dislikes (Given): 0
Dislikes (Received): 0
Default New mbr here, could use some help. HIGH IDLE **FIXED** P2!!

Well it seems that my car is idling high, I have a few issues going on I believe to be a vacuum leak.

My car idles right at 1,000RPMs and when I drive and am moving, push the clutch in it my RPMs hang around 1,500 RPMs. When I come to a stop they settle back down, around 1,000RPMs, but every once and a while they drop down to 500 or so RPMs and the car almost dies. I do want to note, the car seems to idle smooth, I have poly motor mounts, so I have a little vibration at idle, but the idle seems smooth, just doesnt FEEL like a vac leak (which I have had before on other cars and you feel them, more).

Seems like a goddamned vaccum leak. No SES codes yet, but Im sure they will come since I have these issues and about 25miles on the reset PCM. Last time I reset the PCM I had codes P0171 and P0174 at about 50 miles with the new setup (lontgubes, cats, lid, etc).

Anyone have a stock idle vid? is 1,000RPMs Normal idle for an M6 car that is warmed up?

I guess I should go buy some carb cleaner, where should I start to spray?
__________________
2002 Formula M6 Sunset Orange Metallic
Reply With Quote
  #2  
Old 07-13-2010, 10:33 PM
Timmy_Jones Timmy_Jones is offline
Newbie
 
Join Date: Mar 2010
Posts: 8
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
Dislikes (Given): 0
Dislikes (Received): 0
Default

Would you guys recommend buying a vac gauge? Where can you purchase one? Autozone sure as hell doesn't have them.
Reply With Quote
  #3  
Old 07-13-2010, 10:44 PM
smokinss smokinss is offline
The Detailer
 
Join Date: Oct 2009
Posts: 1,881
Post Thanks / Like
Thanks (Given): 2
Thanks (Received): 26
Likes (Given): 14
Likes (Received): 162
Dislikes (Given): 3
Dislikes (Received): 3
Default

hey man. Sounds like it could be a vaccum leak. My SS did something similar after I installed my ls6 intake. It turned out to be that the intake wasnt completley sealed on one of the ports. Also my guy Don (slowhawk) replaced all of the o-rings on the injectors too. and bam it fixed it. Also it could be your MAF might be pretty damn dirty too.

after you did your longtubes did you delete your cats or no. If so your rear o2s need to be tuned out.
__________________
2000 SS Th350, FTI 4200 stall , cam, full bolt-ons, 150 wetshot, Moser 9inch/locker/4.11s, Slowhawk tuned. 493rwhp 570rwtq. 10.97 @ 127.7 1.58 60' and M6
10.84 @ 126.3 1.55 60' Th350 SOLD BUT NOT FORGOTTEN

New Toy - 06 Torrid Red Gto M6. 231/242 cam, Kooks, magnaflow, GForce, Monster stg2, lingenfelter cai, 411rwhp 385rwtq. 12.40@111
Reply With Quote
  #4  
Old 07-13-2010, 11:15 PM
My84Z's Avatar
My84Z My84Z is offline
Post Whore
 
Join Date: Oct 2009
Location: dartmouth
Posts: 2,925
Post Thanks / Like
Thanks (Given): 4
Thanks (Received): 57
Likes (Given): 7
Likes (Received): 240
Dislikes (Given): 6
Dislikes (Received): 24
Default

easiest way to see if it is the intake spray some starting fluid or carb cleaner around the intake and see if the idle fluctuates if it does then you have a leak in there. my guess would be something is leaking check the intake bellows and lid assuming you have a ls1
__________________

2000 SS Procharger
98 Z vert turbo
07 TB SS cai catback and tune
Reply With Quote
  #5  
Old 07-13-2010, 11:17 PM
Timmy_Jones Timmy_Jones is offline
Newbie
 
Join Date: Mar 2010
Posts: 8
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
Dislikes (Given): 0
Dislikes (Received): 0
Default

Sorry guys. Car is a 98 Trans Am, M6.

I have already replaced the MAF and have all codes deleted out (although I have hi-flow cats).
Reply With Quote
  #6  
Old 07-14-2010, 12:36 AM
Slowhawk Slowhawk is offline
choking the wrench
 
Join Date: Oct 2009
Posts: 1,526
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 55
Likes (Given): 0
Likes (Received): 250
Dislikes (Given): 0
Dislikes (Received): 5
Default

The easiest is to have someeone like myself check it out with a computer.

Could be simple or could be one of many sensors.
Reply With Quote
  #7  
Old 07-14-2010, 12:39 AM
Formula413's Avatar
Formula413 Formula413 is offline
Moderbator
Asteroids Champion
 
Join Date: Oct 2009
Location: In the Northeast dreaming of the Southwest
Posts: 5,603
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 141
Likes (Given): 0
Likes (Received): 647
Dislikes (Given): 0
Dislikes (Received): 39
Default

Pretty sure stock idle when warm is 750 RPM. Keep in mind your tach may be off by 200 RPM.
__________________
Alex



GRAMMAR HOW-TO
Reply With Quote
  #8  
Old 07-14-2010, 01:10 AM
BrokenFeather78's Avatar
BrokenFeather78 BrokenFeather78 is offline
Captain Caveman
 
Join Date: Oct 2009
Location: Colchester, CT
Posts: 1,110
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 2
Likes (Given): 0
Likes (Received): 3
Dislikes (Given): 0
Dislikes (Received): 1
Default

Vacuum leak, underlying sensor problem that is lower tier code a scanner wont pick up.
Last month I had an idle issue ended up being a bad tps so you never know.

Oh and welcome to the site.
__________________



There's no replacement for displacement.
Reply With Quote
  #9  
Old 07-14-2010, 03:11 AM
Timmy_Jones Timmy_Jones is offline
Newbie
 
Join Date: Mar 2010
Posts: 8
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 0
Likes (Given): 0
Likes (Received): 0
Dislikes (Given): 0
Dislikes (Received): 0
Default

thanks for the possible solutions guys! Slowhawk, do you have any place in Maine or NH where you could maybe take a look at the car? I figure you are down in mass or CT.
__________________
2002 Formula M6 Sunset Orange Metallic
Reply With Quote
  #10  
Old 07-14-2010, 03:42 AM
*LS1* Queen's Avatar
*LS1* Queen *LS1* Queen is offline
Black Widow Bitch
Snake Champion
 
Join Date: Oct 2009
Location: Norwood, MA
Posts: 3,126
Post Thanks / Like
Thanks (Given): 1
Thanks (Received): 31
Likes (Given): 76
Likes (Received): 111
Dislikes (Given): 5
Dislikes (Received): 10
Default

his shop is in bridgewater ma...o and welcome to the site!
__________________
~*Maddie*~
Reply With Quote
Reply


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


All times are GMT. The time now is 01:17 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.