Injector Balance Rates Help

squirrelmaster · 12-07-2009, 09:43 AM

Could anyone give me a bit of a quick rundown of the best way to check injector balance rates? I've run through every thread I can find trying stuff, but I cannot seem to get the PID supported no matter what I do, so I must be doing something wrong.

Oh, and it's on a mostly stock 2005 Silverado 2500HD LLY/Allison.

Any help would be greatly appreciated. Thanks in advance, I'm new to diesel tuning and I haven't used my HPTuners for a gas engine in so many years that I'm beyond rusty to the point of not remembering anything.

Tom

squirrelmaster · 12-08-2009, 05:07 PM

Nevermind, I got it to work. Man it has been too long...

Tom

u00bse1 · 02-26-2010, 07:30 PM

ok, Can someone steer me in the right direction. I rarely check balance rates with this program. I see the option in the scan tool but i can't get the item to work. Says bad PID or something.

roy67ss · 03-05-2010, 11:48 PM

u00bse1 - did you find out how? I too will be trying to do this.

Dashman · 03-06-2010, 08:09 AM

Open VCM Scanner, go to the Table Display, right click and insert, go to Fuel System, injectors, choose Balance Fuel Rate Cyl 1. Do again for the other 7 cylinders. Open gauge display, right click Add gauge or meter. Do that 7 more times. Right click on each gauge or meter, select properties, select the same PIDs you entered in Table Display. Your gauge or meter should read from -7 to +7. You can put an upper and lower alert from -5 to -7 and +5 to +7 for a Duramax. Good luck!

roy67ss · 03-06-2010, 10:47 AM

Thanks Dashman, I'll give it a go.

roy67ss · 03-17-2010, 10:59 PM

I did this today and it seems to me that the injectors are all over the place. Here is what I got and keep in mind that these numbers are kind of the running average. Some fluctuated quite a bit and others remained fairly steady.

#1 -4.5 and -1.0
#2 -3.2 and -2.5
#3 +2.5 and +1.5
#4 +0.1 and +0.2
#5 +1.5 and -0.2
#6 +3.1 and +3.3
#7 - 2.2 and -2.0
#8 +2.2 and +1.0

I think I read somewhere that -1 to +1 was ideal but anywhere from -4 to +4 was acceptable. The second readings were after I revved it up for a minute or so and seemed to be steadier than the initial ones. #1 has me kind of worried.

What do you guys think of these numbers? I do have a intermittent surge/miss at idle at a stop light and thought this might give a clue. My schrader valve is also wet which apparently might also lead to the surging.

bigmike06 · 07-28-2010, 02:41 PM

Quote:

Originally Posted by Dashman

Open VCM Scanner, go to the Table Display, right click and insert, go to Fuel System, injectors, choose Balance Fuel Rate Cyl 1. Do again for the other 7 cylinders. Open gauge display, right click Add gauge or meter. Do that 7 more times. Right click on each gauge or meter, select properties, select the same PIDs you entered in Table Display. Your gauge or meter should read from -7 to +7. You can put an upper and lower alert from -5 to -7 and +5 to +7 for a Duramax. Good luck!

I tried to do this today and when i go to fuel system there is no injector menu to choose from. I even uninstalled and reinstalled still nothing. I also told it to forget last vehicle connected still nothing. Anyone know why I could not see this info? I have version 2.22. Is there a new one, this version is from 2008 and is the newest one to download from customer center. I'm I missing something?

Thanks in advance

Dashman · 07-29-2010, 09:28 AM

I don't know, but it stores the PIDs for the last vehicle scanned. Maybe you need to be plugged in and at least "connect" to the vehicle. I have only ever scanned my one vehicle, so I'm not sure what needs to be done when going from one to another. I did the balance rate check with version 2.22. It is the latest official release. You sure you're opening the scanner and not the editor?

roy67ss · 07-31-2010, 09:53 PM

Dashman is right, I went thru this same ordeal a while ago. I re-read entire and all was well again.

03-05-2010, 11:48 PM	#4
roy67ss Junior Tuner Join Date: Dec 2005 Posts: 19	u00bse1 - did you find out how? I too will be trying to do this. __________________ Roy 2007 GMC 3500HD, Sinlge Rear, ECLB, LBZ, Allison, 4x4 - PCV reroute, EGR blocked 2005 Chev 2500HD CCSB, Duramax, Allison, 4x4, - LBZ mouthpiece, PCV reroute, EGR blocked
	Location: Drumheller, Alberta

03-06-2010, 08:09 AM	#5
Dashman Junior Tuner Join Date: Nov 2009 Posts: 23	Scanning Balance Rates Open VCM Scanner, go to the Table Display, right click and insert, go to Fuel System, injectors, choose Balance Fuel Rate Cyl 1. Do again for the other 7 cylinders. Open gauge display, right click Add gauge or meter. Do that 7 more times. Right click on each gauge or meter, select properties, select the same PIDs you entered in Table Display. Your gauge or meter should read from -7 to +7. You can put an upper and lower alert from -5 to -7 and +5 to +7 for a Duramax. Good luck! __________________ 2005 Silverado 3500 LLY Duramax 128k miles EGR delete pipe and cap plate 4" front pipe, stock exhaust back K&N filter, stock intake 8 new injectors
	Location: Santa Cruz, NM

03-06-2010, 10:47 AM	#6
roy67ss Junior Tuner Join Date: Dec 2005 Posts: 19	Thanks Dashman, I'll give it a go. __________________ Roy 2007 GMC 3500HD, Sinlge Rear, ECLB, LBZ, Allison, 4x4 - PCV reroute, EGR blocked 2005 Chev 2500HD CCSB, Duramax, Allison, 4x4, - LBZ mouthpiece, PCV reroute, EGR blocked
	Location: Drumheller, Alberta

03-17-2010, 10:59 PM	#7
roy67ss Junior Tuner Join Date: Dec 2005 Posts: 19	I did this today and it seems to me that the injectors are all over the place. Here is what I got and keep in mind that these numbers are kind of the running average. Some fluctuated quite a bit and others remained fairly steady. #1 -4.5 and -1.0 #2 -3.2 and -2.5 #3 +2.5 and +1.5 #4 +0.1 and +0.2 #5 +1.5 and -0.2 #6 +3.1 and +3.3 #7 - 2.2 and -2.0 #8 +2.2 and +1.0 I think I read somewhere that -1 to +1 was ideal but anywhere from -4 to +4 was acceptable. The second readings were after I revved it up for a minute or so and seemed to be steadier than the initial ones. #1 has me kind of worried. What do you guys think of these numbers? I do have a intermittent surge/miss at idle at a stop light and thought this might give a clue. My schrader valve is also wet which apparently might also lead to the surging. __________________ Roy 2007 GMC 3500HD, Sinlge Rear, ECLB, LBZ, Allison, 4x4 - PCV reroute, EGR blocked 2005 Chev 2500HD CCSB, Duramax, Allison, 4x4, - LBZ mouthpiece, PCV reroute, EGR blocked Last edited by roy67ss : 03-17-2010 at 11:11 PM.
	Location: Drumheller, Alberta

07-29-2010, 09:28 AM	#9
Dashman Junior Tuner Join Date: Nov 2009 Posts: 23	I don't know, but it stores the PIDs for the last vehicle scanned. Maybe you need to be plugged in and at least "connect" to the vehicle. I have only ever scanned my one vehicle, so I'm not sure what needs to be done when going from one to another. I did the balance rate check with version 2.22. It is the latest official release. You sure you're opening the scanner and not the editor? __________________ 2005 Silverado 3500 LLY Duramax 128k miles EGR delete pipe and cap plate 4" front pipe, stock exhaust back K&N filter, stock intake 8 new injectors
	Location: Santa Cruz, NM

12-07-2009, 09:43 AM	#1
squirrelmaster Junior Tuner Join Date: Mar 2007 Posts: 2	Injector Balance Rates Help Could anyone give me a bit of a quick rundown of the best way to check injector balance rates? I've run through every thread I can find trying stuff, but I cannot seem to get the PID supported no matter what I do, so I must be doing something wrong. Oh, and it's on a mostly stock 2005 Silverado 2500HD LLY/Allison. Any help would be greatly appreciated. Thanks in advance, I'm new to diesel tuning and I haven't used my HPTuners for a gas engine in so many years that I'm beyond rusty to the point of not remembering anything. Tom

12-08-2009, 05:07 PM	#2
squirrelmaster Junior Tuner Join Date: Mar 2007 Posts: 2	Nevermind, I got it to work. Man it has been too long... Tom

02-26-2010, 07:30 PM	#3
u00bse1 Junior Tuner Join Date: Jan 2010 Posts: 10	ok, Can someone steer me in the right direction. I rarely check balance rates with this program. I see the option in the scan tool but i can't get the item to work. Says bad PID or something.

07-31-2010, 09:53 PM	#10
roy67ss Junior Tuner Join Date: Dec 2005 Posts: 19	Dashman is right, I went thru this same ordeal a while ago. I re-read entire and all was well again. __________________ Roy 2007 GMC 3500HD, Sinlge Rear, ECLB, LBZ, Allison, 4x4 - PCV reroute, EGR blocked 2005 Chev 2500HD CCSB, Duramax, Allison, 4x4, - LBZ mouthpiece, PCV reroute, EGR blocked
	Location: Drumheller, Alberta