Lsj tuning question
Lsj tuning question
I'm not far from having my car on a dyno to get a tune. I'll be tuning the car with hptuners. I have done a little reading and it seems that with an lnf car you can switch ECM calibrations on the fly by hitting a series of steering wheel controls. This would be very beneficial to me as I would like to do a tune on e85 and also pump gas. What my question is are the lsj cars capable of this? I have an 06 ss/sc. Any help with this would be appreciated. Thank you
Joined: 12-30-07
Posts: 14,079
Likes: 197
From: NEPA
I'm not far from having my car on a dyno to get a tune. I'll be tuning the car with hptuners. I have done a little reading and it seems that with an lnf car you can switch ECM calibrations on the fly by hitting a series of steering wheel controls. This would be very beneficial to me as I would like to do a tune on e85 and also pump gas. What my question is are the lsj cars capable of this? I have an 06 ss/sc. Any help with this would be appreciated. Thank you
Yes, it is possible to do, but would be easier if you started with the GMS3 PCM in order to get the features. GMS3 is able to be tuned now thanks to Trifecta, and you can even tune it yourself via HPT.
Is your cruise control still fully functional? And doesn't the gms3 disable your air? Sorry for the newb questions I haven't had an ss long I've had it about 2 weeks and already got the ottp stage 3 on it.
Joined: 12-30-07
Posts: 14,079
Likes: 197
From: NEPA
I do not have any Trifecta tuning done to my car other than the A/C unlocked, so I'm pretty much a straight GMR Stage 3 tune w/ A/C & the other wonderful features.
You can have Vince flash your PCM with the GMS3 file & A/C unlocked, and then go get it custom tuned with HPT. That way you will have a selectable tune between 93 octane & race gas.
Is there any way you could give me a simple "how to" on switching to and from different calibrations? Also, has hptuners cracked the gms3 PCM? Not sure if it was locked or not by the dealer but I had a cavalier with the gmpp m62 kit and that flash was locked which was a bummer when I was all strapped down ready to burn some fuel on the rollers. Can AC be enabled from HPtuners?
Joined: 12-30-07
Posts: 14,079
Likes: 197
From: NEPA
Is there any way you could give me a simple "how to" on switching to and from different calibrations? Also, has hptuners cracked the gms3 PCM? Not sure if it was locked or not by the dealer but I had a cavalier with the gmpp m62 kit and that flash was locked which was a bummer when I was all strapped down ready to burn some fuel on the rollers. Can AC be enabled from HPtuners?
Vince makes it unlocked to HPT, so you can tune the parameters, but you still can't adjust the set features like high octane mode, and the nitrous algorithm.
How to switch from 93 octane (default mode) to High octane mode (race gas):
1. Ignition on engine off press cruise control button on.
2. Hold cruise control set (+) button for 10 sec.
3. Shift light will light up in upper right hand of dash.
4. You are now in high octane spark mode.
Joined: 12-30-07
Posts: 14,079
Likes: 197
From: NEPA
The high octane mode adds a predefined amount of "additional" spark to the default tunes spark map. So really no need to adjust it, because it will add spark to what ever you have the default tune set at.
I'll give you as example of my cars timing in 93 octane & high octane mode:
(93 octane) 22 degrees max timing advance
(100 octane) 26 degrees max timing advance
Hmm I wonder if I had any alternative routes being that I was wanting to do a 93 octane mode for default and e85 tune for race mode. 4degrees of timing would help but being that e85 is so resistant to detonation I know I could get alot more timing in it.
Joined: 12-30-07
Posts: 14,079
Likes: 197
From: NEPA
That's kinda what I'm getting at. Use high octane mode as your E85 file. I'm not sure if Vince cracked this yet, but I'm sure it could be possible. You wouldnt be using the high octane mode spark map. You would just use the feature that allows you to switch between tunes via the cruise control button. You would obviously need to adjust spark and fuel for E85 vs. race gas.
Right exactly. Basically I would like to do exactly what you said how to switch over to the other calibration but I guess we would just have to take the pump gas file and adjust it for e85. It would be pretty rough for my calibrator to re-write two different calibrations on the same PCM from scratch.
Joined: 12-30-07
Posts: 14,079
Likes: 197
From: NEPA
Right exactly. Basically I would like to do exactly what you said how to switch over to the other calibration but I guess we would just have to take the pump gas file and adjust it for e85. It would be pretty rough for my calibrator to re-write two different calibrations on the same PCM from scratch.
Joined: 12-30-07
Posts: 14,079
Likes: 197
From: NEPA
They do not light up under normal conditions on the SS models though. They are functional on the 2.2's, because they are there to tell you when to shift for best fuel economy.
I asked Vince about this a while back, and he replied that dual tune capability is possible, but not implemented yet. He likes the idea of switching between 93 and E-85, but is too busy with his other projects to work on it. The big thing we want to do is make the HOM switch function as the switch instead of just the cruise button. The risk of accidentally switching between 93 and E is too great when its just that button. The whole sequence required to turn on/off HOM would really lend itself to this.
The shift light is not used from the factory, but GMS3 uses it to indicate whether high octane mode is on or off. Canadian cars dont have it.
The first picture in this thread shows the shift light on: https://www.cobaltss.net/forums/2-0l...-3-faq-214518/
The shift light is not used from the factory, but GMS3 uses it to indicate whether high octane mode is on or off. Canadian cars dont have it.
GM Bulletin:
#PPP0002: No Shift Indicator When Set To 100 Octane Mode - Export Only - (Oct 15, 2008)
Subject: No Shift Indicator When Set to 100 Octane Mode - Export Only
Models: 2004 - 2007 Saturn ION Redline Export with a GMPP Stage III Supercharger Kit Installed
2005 - 2007 Chevrolet Cobalt SS Export with a GMPP Stage III Supercharger Kit Installed
--------------------------------------------------------------------------------
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
The shift indicator does not illuminate when switching to 100 octane mode on 2004 - 2007 Saturn ION Redline export (including Canada) and 2005 - 2007 Chevrolet Cobalt SS export (including Canada) equipped with a GM Performance Parts Stage 3 supercharger kit.
Recommendation/Instructions:
The above mentioned export vehicles are built without a shift indicator lamp. On U.S. models, the shift indicator lamp is used as a confirmation to the driver that the ECM has been switched to 100 octane mode. Export models can be switched to 100 octane mode but there will not be an indication to the driver.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
Š 2008 General Motors Corporation. All rights reserved.
#PPP0002: No Shift Indicator When Set To 100 Octane Mode - Export Only - (Oct 15, 2008)
Subject: No Shift Indicator When Set to 100 Octane Mode - Export Only
Models: 2004 - 2007 Saturn ION Redline Export with a GMPP Stage III Supercharger Kit Installed
2005 - 2007 Chevrolet Cobalt SS Export with a GMPP Stage III Supercharger Kit Installed
--------------------------------------------------------------------------------
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
The shift indicator does not illuminate when switching to 100 octane mode on 2004 - 2007 Saturn ION Redline export (including Canada) and 2005 - 2007 Chevrolet Cobalt SS export (including Canada) equipped with a GM Performance Parts Stage 3 supercharger kit.
Recommendation/Instructions:
The above mentioned export vehicles are built without a shift indicator lamp. On U.S. models, the shift indicator lamp is used as a confirmation to the driver that the ECM has been switched to 100 octane mode. Export models can be switched to 100 octane mode but there will not be an indication to the driver.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
Š 2008 General Motors Corporation. All rights reserved.
Last edited by Pyros777; Sep 13, 2011 at 03:51 PM.
You're tellin' me! lol
The last time we talked about this was about a month ago. You can only remind someone about something so much before you become a pest.
Just brought it up again. We'll see what he has to say.
The last time we talked about this was about a month ago. You can only remind someone about something so much before you become a pest.
Just brought it up again. We'll see what he has to say.
No worries. By "HOM switch", I mean the process Staged07SS outlined here:
Pressing the cruise button, then holding the Set button switches HOM on or off.
You can do this with the engine on by the way. It is based on rear wheel speed, so you can do it as long as you're not moving.
:
How to switch from 93 octane (default mode) to High Octane Mode (race gas):
1. Ignition on engine off press cruise control button on.
2. Hold cruise control set (+) button for 10 sec.
3. Shift light will light up in upper right hand of dash.
4. You are now in high octane spark mode.
How to switch from 93 octane (default mode) to High Octane Mode (race gas):
1. Ignition on engine off press cruise control button on.
2. Hold cruise control set (+) button for 10 sec.
3. Shift light will light up in upper right hand of dash.
4. You are now in high octane spark mode.
You can do this with the engine on by the way. It is based on rear wheel speed, so you can do it as long as you're not moving.
What is his username I haven't become a pest to him yet lol
Ah I see....I guess my lightbulb never came on with the abbreviation lol
No worries. By "HOM switch", I mean the process Staged07SS outlined here:
Pressing the cruise button, then holding the Set button switches HOM on or off.
You can do this with the engine on by the way. It is based on rear wheel speed, so you can do it as long as you're not moving.
Pressing the cruise button, then holding the Set button switches HOM on or off.
You can do this with the engine on by the way. It is based on rear wheel speed, so you can do it as long as you're not moving.
I've been reading the other thread you posted on here about when Vince cracked the stage 3 calibration, so am I reading this correctly; you can get a flash from him that will allow you to access everything through hptuners and still utilize the functions of the GMS3 switching capabilities. I believe Staged began to get into this topic earlier.
