MEGAsquirt A place to collectively sort out this megasquirt gizmo

Why cant i change PWM values in tunerstudio?

Thread Tools
 
Search this Thread
 
Old 08-20-2010, 02:02 PM
  #1  
Junior Member
Thread Starter
 
Viper's Avatar
 
Join Date: Aug 2009
Location: Coventry, UK
Posts: 97
Total Cats: 0
Angry Why cant i change PWM values in tunerstudio?

hi all,

iv just put in my 440cc injectors, they are low impedence injectors and i have the board modded for them.

I came to change the valuves of the PMW like the threashhold etc and for some reson on tunerstudio they are grayed out and i can find no way at all of changing them.

Can anyone advise?
Viper is offline  
Old 08-20-2010, 10:21 PM
  #2  
Senior Member
 
gooflophaze's Avatar
 
Join Date: May 2007
Location: Atlanta
Posts: 997
Total Cats: 156
Default

ms version? software?

i grabbed jbperf's peak and hold driver for low resistance injectors because ms1 with hires code can't do PWM.
gooflophaze is offline  
Old 08-20-2010, 10:26 PM
  #3  
Junior Member
 
94blackmx5's Avatar
 
Join Date: Mar 2009
Location: maine
Posts: 221
Total Cats: -1
Default

is tuner studio set to advanced user?
94blackmx5 is offline  
Old 08-21-2010, 07:46 AM
  #4  
Junior Member
Thread Starter
 
Viper's Avatar
 
Join Date: Aug 2009
Location: Coventry, UK
Posts: 97
Total Cats: 0
Default

Originally Posted by 94blackmx5
is tuner studio set to advanced user?
yep
Viper is offline  
Old 08-21-2010, 08:35 AM
  #5  
Junior Member
 
94blackmx5's Avatar
 
Join Date: Mar 2009
Location: maine
Posts: 221
Total Cats: -1
Default

do you have tuner studio light or the paid version? i know in light version you lose a lot of the functions.
94blackmx5 is offline  
Old 08-21-2010, 09:28 AM
  #6  
Elite Member
iTrader: (1)
 
richyvrlimited's Avatar
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,642
Total Cats: 42
Default

I installed Vipers MSII for him. I think it's a bug as it does the same thing on my car. All the PWM stuff is greyed out.

Name:  injectorPWM.jpg
Views: 259
Size:  89.4 KB

I've posted on MSExtra about it, I think it might be a bug....
richyvrlimited is offline  
Old 08-21-2010, 12:46 PM
  #7  
Junior Member
 
94blackmx5's Avatar
 
Join Date: Mar 2009
Location: maine
Posts: 221
Total Cats: -1
Default

i would run the update and get version 999.1 or 999.3 that should fix it. i'm pretty sure they worked out most of the bugs for thoose two
94blackmx5 is offline  
Old 08-21-2010, 02:44 PM
  #8  
Junior Member
Thread Starter
 
Viper's Avatar
 
Join Date: Aug 2009
Location: Coventry, UK
Posts: 97
Total Cats: 0
Default

thats for the help guys, iv now installed dropping resistors, im guessign theres no need to worr yabout the PWMs now?
Viper is offline  
Old 08-21-2010, 05:19 PM
  #9  
Elite Member
iTrader: (1)
 
richyvrlimited's Avatar
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,642
Total Cats: 42
Default

With dropping resistors you effectively have high impedance injectors, so yeah don't worry
richyvrlimited is offline  
Old 08-22-2010, 08:44 AM
  #10  
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,659
Total Cats: 134
Default

You don't mention your firmware version, but I'm assuming it's one of the MS1 HR's. HR does not support peak and hold. The work around is adding resistors, as you've already done.
__________________
Chief of Floor Sweeping, DIYAutoTune.com & AMP EFI
Crew Chief, Car Owner & Least Valuable Driver, HongNorrthRacing

91 Turbo | 10AE Turbo | 01 Track Rat | #323 Mazda Champcar

Originally Posted by concealer404
Buy an MSPNP Pro, you'll feel better.
Ben is offline  
Old 08-22-2010, 11:14 AM
  #11  
Boost Czar
iTrader: (62)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,493
Total Cats: 4,080
Default

Originally Posted by Ben
You don't mention your firmware version, but I'm assuming it's one of the MS1 HR's. HR does not support peak and hold. The work around is adding resistors, as you've already done.
looks like MS-II so it's shouldn't do that, probably a random setting or a firmware glitch. What firmware?
Braineack is offline  
Old 08-22-2010, 12:57 PM
  #12  
Elite Member
iTrader: (1)
 
richyvrlimited's Avatar
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,642
Total Cats: 42
Default

Jean of JBPerf fame figured it out.

Despite running batch injection he has 'additional drivers' selected under the sequential options tab.

Still runs as normal, (so you can return to batch/semi-sequential in software - find dead times etc ), but with sequential you can't use peak and hold injectors, so the option is greyed out.
richyvrlimited is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Pist0n
Supercharger Discussion
6
08-02-2019 05:27 PM
nick470
MEGAsquirt
7
06-16-2017 01:53 PM
slomiata
MEGAsquirt
5
10-07-2015 01:11 PM
itsMikey
MSPNP
3
09-28-2015 06:40 AM



Quick Reply: Why cant i change PWM values in tunerstudio?



All times are GMT -4. The time now is 09:49 AM.