Let's play "What's wrong with my brand new car!?" - Page 2

White_1LE · 08-11-2019, 10:46 PM

Wow. Thanks guys! That sounds exactly like what I have going on. I will be calling the dealer tomorrow.

What makes this even more complicated for me is that the dealer I bought it from got it from another dealer several hundred miles away because they didn't have what I wanted (or any 1LEs for that matter). The CAI is on the window sticker, but the other dealer did the install...

I'm not even sure how GM handles their calibration files these days, but is there any way to identify the proper calibration that my car should have loaded in it? Like is there a file name I can point them to or a TSB maybe?

Boost Creep · 08-12-2019, 06:23 AM

Quote:

Originally Posted by White_1LE

Wow. Thanks guys! That sounds exactly like what I have going on. I will be calling the dealer tomorrow.

What makes this even more complicated for me is that the dealer I bought it from got it from another dealer several hundred miles away because they didn't have what I wanted (or any 1LEs for that matter). The CAI is on the window sticker, but the other dealer did the install...

I'm not even sure how GM handles their calibration files these days, but is there any way to identify the proper calibration that my car should have loaded in it? Like is there a file name I can point them to or a TSB maybe?

When they hook their scan tool up it will give them a calibration number that they can verify.

CrazyCatGuy · 08-12-2019, 03:24 PM

Quote:

Originally Posted by JK001

What mode was your car in? S, Track, etc do not allow for all available power.

I have heard this, but maybe someone can help clear it up for me as I'm a little confused.

Without being in competitive mode, I am not allowed to access the full 455 HP the LT1 has? I guess I just thought the nannies were more invasive which prevented you from actually using all 455HP since the tires may break loose, not that the computer was actually dialing back the power output of the engine.

Can someone help me out to understand this bit of information better? I see an above reply mentioned they made 306WHP without being in competitive mode and then 335 in competitive mode.

Sorry if this question has been asked numerous times.

TRZ06 · 08-12-2019, 04:24 PM

Quote:

Originally Posted by CrazyCatGuy

I have heard this, but maybe someone can help clear it up for me as I'm a little confused.

Without being in competitive mode, I am not allowed to access the full 455 HP the LT1 has? I guess I just thought the nannies were more invasive which prevented you from actually using all 455HP since the tires may break loose, not that the computer was actually dialing back the power output of the engine.

Can someone help me out to understand this bit of information better? I see an above reply mentioned they made 306WHP without being in competitive mode and then 335 in competitive mode.

Sorry if this question has been asked numerous times.

Unless the system registers tire slippage, there should be NO pulling of timing or power from the computer. You should have full access to the full power in any mode.

White_1LE · 08-12-2019, 09:50 PM

CrazyCatGuy - My car is not functioning correctly, but I think the delta in power on my dyno runs between Sport and Sport Competition Mode show that even without wheelspin it makes more power in Competition Mode. The dyno at TPIS is an axle-hub design, meaning it bolts on instead of the wheels so there is 0 chance for wheelspin on either of the pulls (plus the front tires are stationary anyways). This follows with what is stated in the "Demystifying PTM" sticky thread.

I have an appointment tomorrow afternoon at the dealer to check out the calibration. I stated to the reception/appointment person that I need to speak directly with the tech. We shall see how this goes...

19SS393 · 08-12-2019, 10:18 PM

Subscribed. Good luck!!

appleman22 · 08-13-2019, 08:01 AM

good luck, please keep us informed as I am in the same boat as you with the dumb gm cai and missing horsepower.

CrazyCatGuy · 08-13-2019, 10:47 AM

Quote:

Originally Posted by TRZ06

Unless the system registers tire slippage, there should be NO pulling of timing or power from the computer. You should have full access to the full power in any mode.

Quote:

Originally Posted by White_1LE

CrazyCatGuy - My car is not functioning correctly, but I think the delta in power on my dyno runs between Sport and Sport Competition Mode show that even without wheelspin it makes more power in Competition Mode. The dyno at TPIS is an axle-hub design, meaning it bolts on instead of the wheels so there is 0 chance for wheelspin on either of the pulls (plus the front tires are stationary anyways). This follows with what is stated in the "Demystifying PTM" sticky thread.

I have an appointment tomorrow afternoon at the dealer to check out the calibration. I stated to the reception/appointment person that I need to speak directly with the tech. We shall see how this goes...

Thank you both and White_1LE, good luck!

Boost Creep · 08-13-2019, 07:59 PM

Quote:

Originally Posted by White_1LE

CrazyCatGuy - My car is not functioning correctly, but I think the delta in power on my dyno runs between Sport and Sport Competition Mode show that even without wheelspin it makes more power in Competition Mode. The dyno at TPIS is an axle-hub design, meaning it bolts on instead of the wheels so there is 0 chance for wheelspin on either of the pulls (plus the front tires are stationary anyways). This follows with what is stated in the "Demystifying PTM" sticky thread.

I have an appointment tomorrow afternoon at the dealer to check out the calibration. I stated to the reception/appointment person that I need to speak directly with the tech. We shall see how this goes...

I hope they can figure it out without too much problem.
Good luck and post back with the results.

White_1LE · 08-13-2019, 10:06 PM

Alright, apologies for the lack of brevity ahead of time.

Showed up at the dealer (Forest Lake Chevrolet for you Minnesota folks), talked to the advisor and went through the basics of what is going on. He was skeptical and gave me a few nonsense responses like "it won't make full power until 5k miles" but went to the floor and got the drivability specialist. This is where I feel like I got ridiculously lucky. Turns out this guy has a H/C Trailblazer SS and worked on a TA dragster crew for a few years.

So I laid it all out in detail with this guy. There were a few moments where he was a bit skeptical, but the dyno results from TPIS with the AFR being so fat had him convinced something wasn't right.

He took it into the shop and verified that LT Fuel Trims were in the high negative teens area still and commented on how it just sounded a little off. He connected it to their TIS system and checked the calibration file(s) and it said everything on the car is up to date but he was seeing that the engine calibration had not been updated since assembly and was not altered for a car with the GMPP CAI (I didn't get details on how he could tell all of that). He said they need a code off an LPO sticker that comes with the GMPP CAI to get a new calibration file built for the car with the CAI changes made. Apparently they tie your VIN to the SN of the CAI kit and build out a new calibration. I did not have this with me but he called in to the GM TAC and after arguing with them a bit, got them to build a new calibration file for my car with the appropriate changes for the CAI included and uploaded it to the car. I am not sure what all the deltas are for this new code, and he was getting pressed for time at this point.

He idled it in his stall and went around the parking lot and said LT Fuel Trims are in the -1 to -4 range now so he suspects it is good, but had to move on to the next car and didn't have time to go on a longer road test. He was super cool about it and said to let him know how it goes either way and would be willing to try other things if it is still off.

The service advisor said it was going to be interesting figuring out how to get Chevrolet to cover the labor for this and they might have to eat it internally. I told him not to take any BS from Chevrolet, let me know and I will call them and lay it out or do whatever I can to help. I think I again got lucky where this advisor was willing to do right by me and figure out the money later.

I drove it home but didn't have much time to mess around. The butt-dyno is notoriously inaccurate too. But I think it seemed to sound/feel crisper and rev to redline faster and smoother, at least in 1st and 2nd.

I will toss my scantool on it tomorrow and see what I am getting for fuel trims and drive it around more, ran out of time to mess with it today. I also am planning on another trip to TPIS to hit their dyno next Friday.

More to come, cautiously optimistic, but went better than I thought at the dealer at least.

Boost Creep · 08-14-2019, 04:19 AM

Glad to hear it.
This is a short version of what Tim M went through and his turned out fine.

RUQWIKR · 08-14-2019, 06:00 AM

On the GM CAI kit, on the instruction sheet, there is a very long alphanumeric code they give TAC that can only be used once to tie to a VIN.

TrackClub · 08-14-2019, 08:45 AM

Fingers crossed for ya!

Tim M · 08-14-2019, 01:29 PM

Uh oh...

If the car doesn't make power - recommend you submit the lemon law notification before doing anything else.

I got no help from the dealer until Chevrolet Corporate got involved. It starts the clock.

But it does sound like the tech did the same investigation/fix as the Chevrolet specialist did to mine months in to the ordeal.

08-12-2019, 10:18 PM	#20
19SS393 Murda Maro Drives: 2019 Camaro SS Join Date: Jul 2019 Location: Bridge City, Texas Posts: 18	Subscribed. Good luck!! __________________ 19 Black Camaro SS— Mishimoto catch can- rotofab CAI- TSP Catless LTH, SMG flex fuel kit E85, mbrp race axle back. Built by Jrod- Tuned by MS Tuning 460rwhp 480rwtq

08-14-2019, 04:19 AM	#25
Boost Creep Drives: '18 1SS 1LE Join Date: Sep 2017 Location: Pennsyltucky Posts: 2,571	Glad to hear it. This is a short version of what Tim M went through and his turned out fine. __________________ '18 1SS *1LE* Black, PDR

08-14-2019, 01:29 PM	#28
Tim M Drives: 2018 Camaro SS 1LE Join Date: Jul 2018 Location: Stuttgart, Germany Posts: 807	Uh oh... If the car doesn't make power - recommend you submit the lemon law notification before doing anything else. I got no help from the dealer until Chevrolet Corporate got involved. It starts the clock. But it does sound like the tech did the same investigation/fix as the Chevrolet specialist did to mine months in to the ordeal. __________________ 2018 SS 1LE German Based Nurburgring Visit #19 Ring Laps: 77

08-11-2019, 10:46 PM	#15
White_1LE Drives: 2019 ZL1 1LE Join Date: Jul 2019 Location: Minnesota Posts: 51	Wow. Thanks guys! That sounds exactly like what I have going on. I will be calling the dealer tomorrow. What makes this even more complicated for me is that the dealer I bought it from got it from another dealer several hundred miles away because they didn't have what I wanted (or any 1LEs for that matter). The CAI is on the window sticker, but the other dealer did the install... I'm not even sure how GM handles their calibration files these days, but is there any way to identify the proper calibration that my car should have loaded in it? Like is there a file name I can point them to or a TSB maybe?

08-12-2019, 09:50 PM	#19
White_1LE Drives: 2019 ZL1 1LE Join Date: Jul 2019 Location: Minnesota Posts: 51	CrazyCatGuy - My car is not functioning correctly, but I think the delta in power on my dyno runs between Sport and Sport Competition Mode show that even without wheelspin it makes more power in Competition Mode. The dyno at TPIS is an axle-hub design, meaning it bolts on instead of the wheels so there is 0 chance for wheelspin on either of the pulls (plus the front tires are stationary anyways). This follows with what is stated in the "Demystifying PTM" sticky thread. I have an appointment tomorrow afternoon at the dealer to check out the calibration. I stated to the reception/appointment person that I need to speak directly with the tech. We shall see how this goes...

08-13-2019, 08:01 AM	#21
appleman22 Drives: 2017 1ss 1le Join Date: Sep 2015 Location: new york Posts: 436	good luck, please keep us informed as I am in the same boat as you with the dumb gm cai and missing horsepower.

08-13-2019, 10:06 PM	#24
White_1LE Drives: 2019 ZL1 1LE Join Date: Jul 2019 Location: Minnesota Posts: 51	Alright, apologies for the lack of brevity ahead of time. Showed up at the dealer (Forest Lake Chevrolet for you Minnesota folks), talked to the advisor and went through the basics of what is going on. He was skeptical and gave me a few nonsense responses like "it won't make full power until 5k miles" but went to the floor and got the drivability specialist. This is where I feel like I got ridiculously lucky. Turns out this guy has a H/C Trailblazer SS and worked on a TA dragster crew for a few years. So I laid it all out in detail with this guy. There were a few moments where he was a bit skeptical, but the dyno results from TPIS with the AFR being so fat had him convinced something wasn't right. He took it into the shop and verified that LT Fuel Trims were in the high negative teens area still and commented on how it just sounded a little off. He connected it to their TIS system and checked the calibration file(s) and it said everything on the car is up to date but he was seeing that the engine calibration had not been updated since assembly and was not altered for a car with the GMPP CAI (I didn't get details on how he could tell all of that). He said they need a code off an LPO sticker that comes with the GMPP CAI to get a new calibration file built for the car with the CAI changes made. Apparently they tie your VIN to the SN of the CAI kit and build out a new calibration. I did not have this with me but he called in to the GM TAC and after arguing with them a bit, got them to build a new calibration file for my car with the appropriate changes for the CAI included and uploaded it to the car. I am not sure what all the deltas are for this new code, and he was getting pressed for time at this point. He idled it in his stall and went around the parking lot and said LT Fuel Trims are in the -1 to -4 range now so he suspects it is good, but had to move on to the next car and didn't have time to go on a longer road test. He was super cool about it and said to let him know how it goes either way and would be willing to try other things if it is still off. The service advisor said it was going to be interesting figuring out how to get Chevrolet to cover the labor for this and they might have to eat it internally. I told him not to take any BS from Chevrolet, let me know and I will call them and lay it out or do whatever I can to help. I think I again got lucky where this advisor was willing to do right by me and figure out the money later. I drove it home but didn't have much time to mess around. The butt-dyno is notoriously inaccurate too. But I think it seemed to sound/feel crisper and rev to redline faster and smoother, at least in 1st and 2nd. I will toss my scantool on it tomorrow and see what I am getting for fuel trims and drive it around more, ran out of time to mess with it today. I also am planning on another trip to TPIS to hit their dyno next Friday. More to come, cautiously optimistic, but went better than I thought at the dealer at least.

08-14-2019, 06:00 AM	#26
RUQWIKR Drives: 1LEs Join Date: May 2009 Location: DFW - Texas Posts: 1,319	On the GM CAI kit, on the instruction sheet, there is a very long alphanumeric code they give TAC that can only be used once to tie to a VIN.

08-14-2019, 08:45 AM	#27
TrackClub Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012 Location: Canada, eh! Posts: 5,091	Fingers crossed for ya!

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