Haltech Forum Area is for discussing Haltechs

Haltech weird hesitation at 3800 rpm

Thread Tools
 
Search this Thread
 
Old 01-14-17, 01:42 PM
  #1  
destroy, rebuild, repeat

Thread Starter
iTrader: (1)
 
gxl90rx7's Avatar
 
Join Date: May 2004
Location: Charleston, SC
Posts: 2,990
Likes: 0
Received 16 Likes on 14 Posts
weird hesitation at 3800 rpm

im getting a weird hesitation at 3800 rpm, where any time i rev past that engine speed, no matter the load, the engine leans out slightly and hesitates. I logged it, and dont see anything out of the ordinary. everything looks good, not even any missed CAS teeth counts. anybody else have this problem?

im running just two injectors on sequential mode, staging disabled. my guess is causing it is maybe their is a fuel pulsation problem at that rpm?
Old 01-14-17, 01:44 PM
  #2  
Racing Mechanic

 
rexset's Avatar
 
Join Date: Oct 2002
Location: Santiago, Chile, South America
Posts: 539
Received 1 Like on 1 Post
Start with the coils , check that
Old 01-14-17, 01:50 PM
  #3  
Full Member

iTrader: (1)
 
dpartinvr4's Avatar
 
Join Date: Aug 2011
Location: Wheatfield, IN
Posts: 105
Received 2 Likes on 2 Posts
That's probably when your aux ports are opening up
Old 01-14-17, 05:30 PM
  #4  
destroy, rebuild, repeat

Thread Starter
iTrader: (1)
 
gxl90rx7's Avatar
 
Join Date: May 2004
Location: Charleston, SC
Posts: 2,990
Likes: 0
Received 16 Likes on 14 Posts
i dont have aux ports, this is on my FD with 13B REW
Old 01-14-17, 09:29 PM
  #5  
Full Member

iTrader: (1)
 
dpartinvr4's Avatar
 
Join Date: Aug 2011
Location: Wheatfield, IN
Posts: 105
Received 2 Likes on 2 Posts
Ahh, I just seen the screen name and assumed
Old 01-15-17, 07:21 AM
  #6  
www.lms-efi.com

iTrader: (27)
 
C. Ludwig's Avatar
 
Join Date: Mar 2001
Location: Floyds Knobs. IN
Posts: 5,234
Received 127 Likes on 83 Posts
Post your map and logs. Log triggers since last home, AFR, TPS, CLT, IAT, RPM, primary and secondary injector pulse width.
Old 01-15-17, 08:21 AM
  #7  
destroy, rebuild, repeat

Thread Starter
iTrader: (1)
 
gxl90rx7's Avatar
 
Join Date: May 2004
Location: Charleston, SC
Posts: 2,990
Likes: 0
Received 16 Likes on 14 Posts
thanks for taking a look chris
Attached Files
File Type: zip
FD3S_14JAN2017.zip (18.5 KB, 7 views)
Old 01-16-17, 08:05 AM
  #8  
www.lms-efi.com

iTrader: (27)
 
C. Ludwig's Avatar
 
Join Date: Mar 2001
Location: Floyds Knobs. IN
Posts: 5,234
Received 127 Likes on 83 Posts
I don't see it. I'd try turning off closed loop and throttle pump, independently of each other, to see if that makes a difference.
Old 03-21-17, 08:53 AM
  #9  
Newbie
 
mientjie's Avatar
 
Join Date: Jan 2004
Location: South Africa
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Check your trigger and home filter levels, had the same problem. Trigger levels were set to 0. Changed to trigger filter level to 1 and home filter level to 3.




All times are GMT -5. The time now is 11:03 PM.