Tuning, Diagnostics, Electronics, and Wiring HP Tuners | EFILive | Hand Held Programmers | Stand Alone PCM's | Electronics | Wiring Diagrams

truck idles wayy down when stoping

Old Sep 15, 2008 | 11:19 PM
  #1  
xchevyx24's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Jul 2005
Posts: 597
Likes: 0
From: CORONA,CA
Default truck idles wayy down when stoping

When i come to a stop really fast somtimes my truck will die, if it doesnt die it goes really low in the rpm's. It idles perfect once your stoped just not when your stoping.
Reply
Old Sep 15, 2008 | 11:22 PM
  #2  
00ChevyScott's Avatar
Wearin' da big hat
iTrader: (10)
 
Joined: Jan 2008
Posts: 10,262
Likes: 9
From: Over There
Default

Hmm, bad MAF?
Reply
Old Sep 15, 2008 | 11:27 PM
  #3  
charcold-bowtie's Avatar
TECH Junkie
iTrader: (10)
 
Joined: Jul 2006
Posts: 3,198
Likes: 0
From: Midland Texas
Default

not likely, Maf isnt used much down low. Do you have a log of it. Is it tuned by you it looks like. What all has been done in the tune, can you attach it or perhaps a log.
Reply
Old Sep 15, 2008 | 11:29 PM
  #4  
xchevyx24's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Jul 2005
Posts: 597
Likes: 0
From: CORONA,CA
Default

i havent touched anything on the tune except tranny stuff and speed limiter so all the spark and fuel tables are stock
Reply
Old Sep 15, 2008 | 11:31 PM
  #5  
charcold-bowtie's Avatar
TECH Junkie
iTrader: (10)
 
Joined: Jul 2006
Posts: 3,198
Likes: 0
From: Midland Texas
Default

have you looked at idle trims. Seems pretty odd. get a log and put it on here.
Reply
Old Sep 15, 2008 | 11:47 PM
  #6  
xchevyx24's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Jul 2005
Posts: 597
Likes: 0
From: CORONA,CA
Default

i dunno how to post a log
Reply
Old Sep 15, 2008 | 11:58 PM
  #7  
RandomHero's Avatar
TECH Veteran
iTrader: (24)
 
Joined: Jun 2005
Posts: 4,787
Likes: 1
From: Austin,TX Name:Mark
Default

I have the same problem. I'm convinced it's an air fuel ratio issue. I've logged so many rafigs and rafpns that it's not even funny.
Reply
Old Sep 16, 2008 | 12:11 AM
  #8  
charcold-bowtie's Avatar
TECH Junkie
iTrader: (10)
 
Joined: Jul 2006
Posts: 3,198
Likes: 0
From: Midland Texas
Default

reply, click the little paperclip and add one.
Reply
Old Sep 16, 2008 | 12:14 AM
  #9  
xchevyx24's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Jul 2005
Posts: 597
Likes: 0
From: CORONA,CA
Default

my pos computer dosnt feel like doing it right now so ill post asap thanks
Reply
Old Sep 16, 2008 | 08:37 AM
  #10  
BlackGMC's Avatar
Resident Retard
iTrader: (31)
 
Joined: Jan 2006
Posts: 17,216
Likes: 20
From: Fort Worth - TX
Default

add a little bit to the throttle cracker table, except for the 0mph column... Adding too much to that table and you will have cruise control, to little and it will stumble/stall
Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 10:47 PM.