check these scans out, not good :( **update**
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monte0Offline
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keith
1999 Other Car
Joined: 11 Jul 2005
Location: gates
Age: 46
PostPosted: Thu Sep 29, 2005 12:45 am    Post subject: check these scans out, not good :( **update** Reply with quote

Well ran a few new scans tonight and wow! KR peaked at 9.49!! What is going on? On my last run I accully felt the car at the third shift bog down like it was running out of gas and come back..............o and also notice how my o2's go up to peak and then start to drop slowly even though the throtle is still at full. Doesnt make any sense.......

Well hears the scans. Let me know what you think.

http://www.amoxsoft.com/mike/new2/view.php?scanName=NannyLog%2809.29.2005_01.07.58%29.&display=Display+Scan&member_view=monte0

http://www.amoxsoft.com/mike/new2/view.php?scanName=NannyLog%2809.29.2005_01.08.46%29.&display=Display+Scan&member_view=monte0


Last edited by monte0 on Sun Oct 16, 2005 9:31 am; edited 2 times in total
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studderinOffline
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John Csotello
1998 Grand Prix GTP
Joined: 01 Oct 2003
Location: 2nd gear burnouts
Age: 42
PostPosted: Thu Sep 29, 2005 12:49 am    Post subject: Reply with quote

fuel filter?
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monte0Offline
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keith
1999 Other Car
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PostPosted: Thu Sep 29, 2005 12:52 am    Post subject: Reply with quote

Just did tune up on it about a month ago so Confused
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monte0Offline
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keith
1999 Other Car
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PostPosted: Thu Sep 29, 2005 5:05 pm    Post subject: Reply with quote

Was wondering if one of you guys could give me a hand tuning my car before I chunk a piston or something. That definitly wouldnt be a good thing. Crying or Very sad
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studderinOffline
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John Csotello
1998 Grand Prix GTP
Joined: 01 Oct 2003
Location: 2nd gear burnouts
Age: 42
PostPosted: Thu Sep 29, 2005 6:17 pm    Post subject: Reply with quote

I repyed to the PM,s


get WB info now.
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2fast4UOffline
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Gary
2001 Regal GS
Joined: 28 Dec 2004
Location: Niagara Falls, NY
Age: 54
PostPosted: Thu Sep 29, 2005 6:28 pm    Post subject: Reply with quote

How long ago did you get the DHP pcm? Have you checked for any misfires while scanning? What size pulley is on it now? What type of plugs and wires?
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Christopher Lazarz
2001 Grand Prix GTP
Joined: 20 Nov 2003
Location: Thorold, Ontario
Age: 49
PostPosted: Thu Sep 29, 2005 9:06 pm    Post subject: Reply with quote

running really really lean.

fueling issue somewhere.

either fuel filter or pcm programming.

was the fuel filter actually replaced during the tune up??

maybe time for motorvac as well?
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monte0Offline
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keith
1999 Other Car
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PostPosted: Thu Sep 29, 2005 10:19 pm    Post subject: Reply with quote

2fast4U wrote:
How long ago did you get the DHP pcm? Have you checked for any misfires while scanning? What size pulley is on it now? What type of plugs and wires?


Had it for about 2 months now. Bought it used from a member of regalgs.org and he said he had it for a couple of years. No misfires, 3.4 pulley, stock replacement wires and 103 plugs. Gas filter was replaced at the same time as the rest of the stuff.
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Michael Guzzo
1998 Grand Prix GTP
Joined: 03 Oct 2003
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Age: 58
PostPosted: Fri Sep 30, 2005 7:13 am    Post subject: Reply with quote

what is your whole mod list please?
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1998 True Green Metallic GTP Coupe
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2fast4UOffline
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Gary
2001 Regal GS
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PostPosted: Fri Sep 30, 2005 7:26 am    Post subject: Reply with quote

Hey Keith...Have you checked the fuel pressure at all? Soething is definetely odd here...the scans show lean lean lean, and far too much boost for a 3.4. No codes at all? What are the IAC's (and what is your idle set to)

Also, can you post a scan of just normal driving along with a wot run to 90 or so? This just cannot be a WOT thing, there is something else going on...
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monte0Offline
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keith
1999 Other Car
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PostPosted: Fri Sep 30, 2005 8:02 am    Post subject: Reply with quote

Mod List:
3.4 pulley, 103 plugs, 180 t-stat, DHP v1.0, 3" d/p w/ high flow cat., res. delete, gutted stock air box, trans. cooler, thrasher shift kit(set to #2)



I'm affrad to do anymore runs with the car because of the way its running presantly. Definitly running bad all through out the whole range of throttle. I'll get the fuel pressure checked today. You want it checked at idle or at wot?
I'm thinking of putting the stock pcm back in, what do you guys think?
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Carl
1996 Other Car
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PostPosted: Fri Sep 30, 2005 8:20 am    Post subject: Reply with quote

monte0 wrote:
Mod List:
3.4 pulley, 103 plugs, 180 t-stat, DHP v1.0, 3" d/p w/ high flow cat., res. delete, gutted stock air box, trans. cooler, thrasher shift kit(set to #2)



I'm affrad to do anymore runs with the car because of the way its running presantly. Definitly running bad all through out the whole range of throttle. I'll get the fuel pressure checked today. You want it checked at idle or at wot?
I'm thinking of putting the stock pcm back in, what do you guys think?


Keith my man, let me tell you from experience DO NOT DO ANY MORE RUNS!!!!!
I was trying to diagnose that same problem and on my last "run" to see if it was ok I chucked a piston.

My problem was a lean condition caused by a crap fram fuel filter that had pin hiles in it.

Change the fuel filter, put in 104's, or better yet slap that 3.8 back on with stock plugs. Scan and then go from there. I wish I did.
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monte0Offline
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keith
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PostPosted: Fri Sep 30, 2005 9:44 am    Post subject: Reply with quote

I'm affrad I might of did some damage on the scans I posted. Car did something weird I never felt. Hope it was nothing. I don't have my puller yet so I'm stuck with mine 3.4. I put the 103's in just to be on the safe side. I'll change the filter again, maybe I got a bad one out of the box. I'll have to borrow a puller until I get mine. Thanks Carl
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monte0Offline
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keith
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PostPosted: Fri Sep 30, 2005 1:26 pm    Post subject: Reply with quote

Just replaced the MAF and put the IAC sensor back in the stock location hoping the hotter temps will pull a little timing out of the pcm. After doing this the car is running a little better but I havent scaned it yet. The MAF definitly was probably on its way out and it wasnt dirty at all. Going to check the fuel pressure this weekend sometime. Still what to see if someone can help me get this car tuned a little better.
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Clint Lopez
1998 Grand Prix GTP
Joined: 25 Apr 2005
Location: Burt, New York
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PostPosted: Fri Sep 30, 2005 3:49 pm    Post subject: Reply with quote

Did you turn TCS off? I had a similar problem and it turned out to be the TCS activating at WOT and my engine would sputter and O2's would not stay high, they would decrease. Turn your TCS off and give a couple WOT runs.
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