2010 chevy camaro idle/low RPM tuning - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

thahemp · 01-30-2014, 09:25 AM

Quote:

Originally Posted by Rhino79

Its not that its lacking data points, but you also have to change Operating zone RPM and MAP boundary settings sometimes to get it right.

Man its much quicker in EFILive....lol.

Interesting. When I ran the bluecat tool, it changed RPM or MAP boundaries or both. I have some sample tunes that I have collected. I need to do some comparing it sounds like. Either that, or give up on the 3rd party stuff and flash the custom OS in. This EQ<>VE method has been really weird from the start.

SomeGeoffGuy · 01-30-2014, 09:31 AM

Great thread. I usually never touch the MAF in tuning since it is "Factory" calibrated, but I never considered the reversion aspect of cam tuning. Great info.

-Geoff

thahemp · 01-30-2014, 09:48 AM

Quote:

Originally Posted by SomeGeoffGuy

Great thread. I usually never touch the MAF in tuning since it is "Factory" calibrated, but I never considered the reversion aspect of cam tuning. Great info.

-Geoff

Trims are a disagreement between what your MAF or VE says should work and what is actually happening. How do you get your trims where they're supposed to be without tuning the MAF?

JANNETTYRACING · 01-30-2014, 09:48 AM

Quote:

Originally Posted by SomeGeoffGuy

Great thread. I usually never touch the MAF in tuning since it is "Factory" calibrated, but I never considered the reversion aspect of cam tuning. Great info.

-Geoff

It is as long as the MAF is left in the stock air box

As soon as you move the MAF to an aftermarket Air intake system the calibration goes out the window for most.

ADM
CAI
Halltech
Rotofab

All Keep the calibration closest to stock but still needs some tuning and More so when you add a cam or supercharger.

Others are Pretty far off.

Ted.

thahemp · 01-30-2014, 09:51 AM

Quote:

Originally Posted by JANNETTYRACING

It is as long as the MAF is left in the stock air box

As soon as you move the MAF to an aftermarket Air intake system the calibration goes out the window for most.

ADM
CAI
Halltech
Rotofab

All Keep the calibration closest to stock but still needs some tuning and More so when you add a cam or supercharger.

Others are Pretty far off.

Ted.

Like my Fastlane haha. Anywhere from 4% - 15%.

hapisok · 01-31-2014, 07:50 PM

stumbled across this gem…
http://www.camaro5.com/forums/showthread.php?t=196696

kpwalls06 · 01-31-2014, 08:25 PM

Like thahemp said, this type of discussion is great stuff for those of us that don't have tons of experience, and I hope it continues as well. Also, thanks to those tuners/vendors that jump in here to help us out with this stuff, your time and help is really appreciated.

thahemp · 01-31-2014, 10:28 PM

Quote:

Originally Posted by hapisok

stumbled across this gem…
http://www.camaro5.com/forums/showthread.php?t=196696

Yep. That was REALLY helpful for someone that has never done it before. The low alt VE table part is wrong though! That's why I posted the thread about it a while back. Conceptually though... really really helpful threads. Here's the index of all his threads.

http://www.camaro5.com/forums/showthread.php?t=197042

hapisok · 02-01-2014, 02:08 PM

Quote:

Originally Posted by thahemp

Yep. That was REALLY helpful for someone that has never done it before. The low alt VE table part is wrong though! That's why I posted the thread about it a while back. Conceptually though... really really helpful threads. Here's the index of all his threads.

http://www.camaro5.com/forums/showthread.php?t=197042

interesting. looking at mine, it reads right MAP vs RPM. went through the tutorial by bluetorp which was fairly easy and used the <EQ VE> 3.5 tool. ended up having some surging (600-1200RPM) as though it were hunting for idle afterward. there is a new true "bluecat" tool V4 that I'm going to give a shot next. fuel trim learning was turned off, I'm guessing by my tuner…turning them back on seemed to help my low RPM drivability a little bit. gonna let my LTFT's learn so my STFT's can 0 out (at least thats the plan) and then move on from there. i enjoy this, but man can it be frustrating. you don't know what you don't know…so thanks for all the help so far.

thahemp · 02-01-2014, 09:08 PM

Interesting. There must be a difference in our OS? I did it the way you're about to. Drove and drove and drove till my stft cells were 0 or close to it, then applied ltft error %. Then I did stft with learning disabled. That went much faster. It took a couple tries to get rid of stumbles, but I eventually got there. Now I run it in hybrid mode and it drives better than it ever has. The quality of the logging is what keeps you from swinging back and forth past perfect if you know what I mean.

hapisok · 02-11-2014, 09:14 PM

so i ran the bluetorps how to a couple times now and keep getting stuck after adjusting for LTFT's. the issue i get is that i can't hold an idle. i've bumped the idle RPM's up to 1200 and it'll hold there for 30-45 secs then dip down to 400RPM's, generally it'll recover but other times it just dies. i can bump the RPM's down to 1100 where it will continue this, anything lower and it hunts and dies. so…i haven't made it to STFT tuning yet.

so…cleared out the VE Reversion Lo Altd table to see if it that would help…same thing. so now what? not sure which of the 20 VE tables to adjust. the bluecat tool made some MAJOR adjustments between the original file and the bluecat corrections. which to me seems could be part of the issue.

on a second note, no matter how much logging, my STFT's won't 0 out with fuel trim learning enabled or LTFT's enabled (which were disabled). STFT's range from -15 - +15 but LTFT's are between -6 to -2 across the board with the majority of the cells settling at -5. so it appears as though my LTFT's are settling in, but STFT's won't. from my understanding, once LTFT's are learned, STFT corrections should be minimal?

i understand -4 is acceptable/preferred, but any suggestions to finish LTFT tuning with this process where my idle won't hunt? i know its gotta be in the VE table…but where? or should i go straight to STFT tuning?

thanks

thahemp · 02-12-2014, 09:45 AM

Quote:

Originally Posted by hapisok

so i ran the bluetorps how to a couple times now and keep getting stuck after adjusting for LTFT's. the issue i get is that i can't hold an idle. i've bumped the idle RPM's up to 1200 and it'll hold there for 30-45 secs then dip down to 400RPM's, generally it'll recover but other times it just dies. i can bump the RPM's down to 1100 where it will continue this, anything lower and it hunts and dies. so…i haven't made it to STFT tuning yet.

so…cleared out the VE Reversion Lo Altd table to see if it that would help…same thing. so now what? not sure which of the 20 VE tables to adjust. the bluecat tool made some MAJOR adjustments between the original file and the bluecat corrections. which to me seems could be part of the issue.

on a second note, no matter how much logging, my STFT's won't 0 out with fuel trim learning enabled or LTFT's enabled (which were disabled). STFT's range from -15 - +15 but LTFT's are between -6 to -2 across the board with the majority of the cells settling at -5. so it appears as though my LTFT's are settling in, but STFT's won't. from my understanding, once LTFT's are learned, STFT corrections should be minimal?

i understand -4 is acceptable/preferred, but any suggestions to finish LTFT tuning with this process where my idle won't hunt? i know its gotta be in the VE table…but where? or should i go straight to STFT tuning?

thanks

I can't help you with the idle tuning yet. I'm hoping to get started on that next week. I'll keep this thread in mind when I finally get to it.

Make sure you're looking at the STFT cells as average when you're waiting on them to zero out. I used last value for LTFT and average value for STFT. I don't know how much driving you have done, but I burned through an entire tank doing the LTFT stuff. 3 LONG logging sessions. I assume your VE low altd table rows and columns match the EQ<>VE tools rows and columns? You might want to check that too.

Have you done your MAF calibration yet? Do you have the same problems when you disable the VE stuff? Mine drove a lot smoother untuned in MAF only. The VE tables can definitely make the car run shitty if it's not right.

hapisok · 02-12-2014, 05:03 PM

ARGH!…SO FRUSTRATING!

SomeGeoffGuy · 02-13-2014, 01:49 PM

Why are you idling so high? That cam shouldn't be that bad.

-Geoff

01-30-2014, 09:31 AM	#16
SomeGeoffGuy Drives: 2023 2SS Convertible Join Date: May 2009 Location: Metro Detroit Posts: 1,061	Great thread. I usually never touch the MAF in tuning since it is "Factory" calibrated, but I never considered the reversion aspect of cam tuning. Great info. -Geoff __________________ '12 2SS RS Convertible - Traded in. '16 2SS Convertible - White on white, mag-ride, NPP, nav. Sold! '23 2SS Convertible -Same as above except orange.

01-31-2014, 07:50 PM	#20
hapisok crazier than a coconut Drives: 2010 2SS/RS LS3 Join Date: Jul 2010 Location: virginia Posts: 1,547	stumbled across this gem… http://www.camaro5.com/forums/showthread.php?t=196696 __________________

02-01-2014, 09:08 PM	#24
thahemp Geek Drives: 2012 Black LS3 Join Date: Jan 2012 Location: Derby, KS Posts: 4,343 View My Garage	Interesting. There must be a difference in our OS? I did it the way you're about to. Drove and drove and drove till my stft cells were 0 or close to it, then applied ltft error %. Then I did stft with learning disabled. That went much faster. It took a couple tries to get rid of stumbles, but I eventually got there. Now I run it in hybrid mode and it drives better than it ever has. The quality of the logging is what keeps you from swinging back and forth past perfect if you know what I mean. __________________ 01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001 x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1 x = ~x

02-11-2014, 09:14 PM	#25
hapisok crazier than a coconut Drives: 2010 2SS/RS LS3 Join Date: Jul 2010 Location: virginia Posts: 1,547	so i ran the bluetorps how to a couple times now and keep getting stuck after adjusting for LTFT's. the issue i get is that i can't hold an idle. i've bumped the idle RPM's up to 1200 and it'll hold there for 30-45 secs then dip down to 400RPM's, generally it'll recover but other times it just dies. i can bump the RPM's down to 1100 where it will continue this, anything lower and it hunts and dies. so…i haven't made it to STFT tuning yet. so…cleared out the VE Reversion Lo Altd table to see if it that would help…same thing. so now what? not sure which of the 20 VE tables to adjust. the bluecat tool made some MAJOR adjustments between the original file and the bluecat corrections. which to me seems could be part of the issue. on a second note, no matter how much logging, my STFT's won't 0 out with fuel trim learning enabled or LTFT's enabled (which were disabled). STFT's range from -15 - +15 but LTFT's are between -6 to -2 across the board with the majority of the cells settling at -5. so it appears as though my LTFT's are settling in, but STFT's won't. from my understanding, once LTFT's are learned, STFT corrections should be minimal? i understand -4 is acceptable/preferred, but any suggestions to finish LTFT tuning with this process where my idle won't hunt? i know its gotta be in the VE table…but where? or should i go straight to STFT tuning? thanks Attached Images __________________ Last edited by hapisok; 02-11-2014 at 09:25 PM.

02-12-2014, 05:03 PM	#27
hapisok crazier than a coconut Drives: 2010 2SS/RS LS3 Join Date: Jul 2010 Location: virginia Posts: 1,547	ARGH!…SO FRUSTRATING! __________________

01-31-2014, 08:25 PM	#21
kpwalls06 Cory Drives: 2010 Camaro 2SS/RS M6; Join Date: Nov 2009 Location: Carrollton, Tx Posts: 299 View My Garage	Like thahemp said, this type of discussion is great stuff for those of us that don't have tons of experience, and I hope it continues as well. Also, thanks to those tuners/vendors that jump in here to help us out with this stuff, your time and help is really appreciated.

02-13-2014, 01:49 PM	#28
SomeGeoffGuy Drives: 2023 2SS Convertible Join Date: May 2009 Location: Metro Detroit Posts: 1,061	Why are you idling so high? That cam shouldn't be that bad. -Geoff __________________ '12 2SS RS Convertible - Traded in. '16 2SS Convertible - White on white, mag-ride, NPP, nav. Sold! '23 2SS Convertible -Same as above except orange.