FORCED INDUCTION Turbos | Superchargers | Intercoolers | H2O/Meth Injection
Sponsored by:
Sponsored by:

"Reduced Engine Power"......

Old Oct 7, 2008 | 10:41 PM
  #11  
alanderson1978's Avatar
TECH Apprentice
iTrader: (1)
 
Joined: Nov 2006
Posts: 334
Likes: 0
From: Blytheville, AR
Default

Look in Engine Diag >> General >> Calc Airflow. That table needs to be raised across the board. You can set up a histogram using the table's axes and see what kind of values you are actually getting. I set up the histogram to read max instead of average, then pasted the results into the 1514 table, did a bunch of smoothing, then added a margin (maybe 25% ?) to all cells.

HTH at least a little bit
Reply
Old Oct 7, 2008 | 10:47 PM
  #12  
BlownChevy's Avatar
blownerator
25 Year Member
iTrader: (20)
 
Joined: Mar 1986
Posts: 18,749
Likes: 8
From: Chatsworth, CA
Default

Check the wires that you extended for the TB. Did you get any freeze frame data from when it set the code? Idle, WOT, temp, etc, etc?
Reply
Old Oct 8, 2008 | 12:29 AM
  #13  
r1les's Avatar
Thread Starter
Staging Lane
 
Joined: Aug 2008
Posts: 97
Likes: 0
Default

Unfortunately no I wasnt able to get any freeze frame data.I wouldnt mind getting a nice program on my laptop so I could plug it in and see what and when its doing.And then fine tune it.But thats WAY uncharted territory for me and knowing myself like me and you discussed,out of sight,out of mind so to speak.Id drive myself crazy trying to perfect the tune.My next step is to see if there are any loose wires on the plug by the TB.I was told sometimes theyve been known to work themselves loose and they'll loose a connection from time to time.But its back to the norm so far,knock on wood thanks fo rthe insight guys.
Reply
Old Oct 8, 2008 | 10:38 PM
  #14  
FarmTruc's Avatar
Performance Trucks Sponsor
iTrader: (5)
 
Joined: Jul 2002
Posts: 1,439
Likes: 0
From: san antonio, tx
Default

If it's not that, I've seen the TAC module cause this issue as well. Along with the P68 code.

I've also had the actual throttle body cause this on a newer vehicle. We swapped throttle bodys and no more problem.

Give us a call, we can set you up with hptuners.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
superchomper2003
GM Drivetrain & Suspension
3
Aug 26, 2015 09:39 AM
DrX
FORCED INDUCTION
4
Aug 11, 2015 07:25 AM
GMCtrk
Tuning, Diagnostics, Electronics, and Wiring
38
Aug 9, 2015 08:50 PM
Ferocity02
GM Drivetrain & Suspension
0
Aug 7, 2015 08:50 PM
85SS/85GN
GM Parts Classifieds
5
Jul 22, 2015 12:48 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 05:57 PM.