| View previous topic :: View next topic |
| Author |
Message |
Greystar Total posts: 1313
Pat2002 Other Car Joined: 04 Feb 2004 Location: NC Age: 94 |
 Posted: Mon Nov 14, 2005 3:26 pm Post subject: |
 |
|
| NY GTP wrote: | | Greystar wrote: | | monte0 wrote: | http://www.amoxsoft.com/mike/new2/view.php?scanName=mmm&display=Display+Scan&member_view=monte0
Here's another scan, with my stock( 3.8 ) pulley @ 10.49 PSI!!!!!!
And 4.5 KR!! All I ask is why me??????????? WTF? |
10.5 psi sounds a bit out of whack for a 3.8? I mean mine was like 6psi? |
Same here, mine gets up to as high as 8 in cold weather, but usually hovers around high 6's low 7's on average. 10.5 does seem real high for a 3.8. |
I would venture to guess youhave some serious problems with your motor right now and I would take it easy with it until you figure out what. As someone mentioned I would check for a clogged cat. |
|
| Back to top |
|
 |
| 2fast4U Total posts: 1113
Gary2001 Regal GS Joined: 28 Dec 2004 Location: Niagara Falls, NY Age: 54 |
| Posted: Mon Nov 14, 2005 7:07 pm Post subject: |
|
|
Clogged cat or a massive vac leak making all the AFR numbers whacky...
_________________
Sgt at Arms - Council of Elders
RegalGS Admin / HP Tuners Moderator / FTV6 Moderator
 |
|
| Back to top |
|
|
| monte0 Total posts: 1144
keith1999 Other Car Joined: 11 Jul 2005 Location: gates Age: 46 |
|
| Back to top |
|
|
| mguzzo Total posts: 2863
Michael Guzzo1998 Grand Prix GTP Joined: 03 Oct 2003 Location: in front of you Age: 58 |
| Posted: Wed Nov 16, 2005 8:19 am Post subject: |
|
|
I'm going to go out on a limb here and say your cat is clogged.
* IAC at idle is about 40-45 which means no vac leak
* LTFTs look OK at steady cruise. See LTFT go little negative at part throttle when you take your foot off the gas? Normal, PCM trims back fuel to compensate for the rich condition created when the throttle plate closes.
* But I saw LTFT lock at +7.0 during a WOT romp with O2s of 940ish . But no KR On that run? Blip of 0.6? So when you crack the throttle open you create a lean condition, PCM has to (+) trim to add fuel. Maybe skew the '7' range on your AFC a little bit to put in 1% more fuel at the transition.
_________________
1998 Silvermist GTP Coupe
Bone stock unicorn
1998 True Green Metallic GTP Coupe
Pullied, cammed, intercooled. With a kiddie seat. It once ran a 13 flat.
1998 True Green Metallic GTP Sedan (retired)
Stock: 14.33 @ 96.5
PB: 13.89 @ 101 mph |
|
| Back to top |
|
|
| 2fast4U Total posts: 1113
Gary2001 Regal GS Joined: 28 Dec 2004 Location: Niagara Falls, NY Age: 54 |
| Posted: Wed Nov 16, 2005 9:25 am Post subject: |
|
|
| I am starting to think the same thing. I had a brand new cat clog in two months - almost solid! It was doing a lot of the same things that yours is... |
|
| Back to top |
|
|
| bluto2000gs Total posts: 3300
Carl1996 Other Car Joined: 31 Mar 2004 Location: Lima, NY Age: 53 |
| Posted: Wed Nov 16, 2005 11:32 am Post subject: |
|
|
MEOW #11
_________________
Good Bye.
BHO sucks. |
|
| Back to top |
|
|
| Scott P Total posts: 3173
Like, duh.2006 Other Car Joined: 01 Oct 2003 Location: Waxlandia aka Houston, TX Age: 93 |
| Posted: Wed Nov 16, 2005 12:25 pm Post subject: |
|
|
| After you verify that it is aclogged cat, you should look into how it got clogged. No use ruining a new cat if the problem is still there. |
|
| Back to top |
|
|
| GTP98 Total posts: 1787
Jay1998 Grand Prix GTP Joined: 03 Oct 2003 Location: b-loooooow Age: 44 |
| Posted: Wed Nov 16, 2005 12:29 pm Post subject: |
|
|
runing rich will clog a cat even if its new.
_________________
'08 TrailBlazer SS Black/Black |
|
| Back to top |
|
|
|
Album
Calendar
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages 
Log in