Another Stabilitrack post - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Valkyrie14 · 08-05-2020, 09:36 PM

So A couple of weeks ago I was on a clear back road and I opened it up I was in third gear at above 5000 rpm and the stabilitrack flashed on and off. I slowed down and it went away.

Fast forward to today. I was driving on the highway with cruise control on at about 82 in 6th gear around 1800 to 1900 rpms. AFR gauge at around 16. The service stabilitrack came on, reduced engine power came on and as I pulled off to the side of the road the car was bucking hard and at a stop idled extremely rough. I shut her down and disconnected the negative cable for a minute. Turned her back on and no issue no CEL. Drove fine. 60 miles later same thing.

I haven’t plugged in my HP to see what code was thrown yet. I read other posts on this and see it could be a bunch of different things. However, the other posts I saw didn’t have the full blown reduced power service stabilitrack issue.

Not a fan of taking it to the dealership I will most likely fix this myself. I will post the codes once my laptop is charged enough to pull the codes.

Badbubba · 08-06-2020, 12:03 AM

16 afr is lean, even at light throttle. Can it be switched to lambda? A few variables with afr. Such as fuel used and what stochiometric value is programmed in the wideband. Which can skew the real value. Could be the tune or vacuum leak causing fuel trims to try to adjust, but are excessive and throwing a cel. ???? Code will help.

bottletalk · 08-06-2020, 01:33 AM

sounds like short or electrical malfunction. try to do it again then turn off the stabiltrak and see if it corrects....or check the schematic and see if anything on your intake, fuel, etc is on the same circuit as the stabiltrak.

Valkyrie14 · 08-06-2020, 09:21 AM

Here is the code. 0x7E8: P2135 (Permanent) google says throttle position sensor.

Valkyrie14 · 08-06-2020, 09:43 AM

Here is the DTC off of HP

davidscamaro · 08-06-2020, 03:02 PM

New tps and be done with it

Valkyrie14 · 08-06-2020, 09:28 PM

Quote:

Originally Posted by davidscamaro

New tps and be done with it

I guess if I were sure that the TPS was it I would. Is this common?

bottletalk · 08-06-2020, 09:52 PM

it could be the peddle to. short and or pcm. a bad tps shouldn’t give you a stabiltrak service indication

bottletalk · 08-06-2020, 09:59 PM

actually a tps can give you a stabiltrak service indication. just checked!

davidscamaro · 08-07-2020, 08:47 AM

Plus you add the bbk 95mm on top and i think the tb and tps are great places to start looking for your problem

Valkyrie14 · 08-10-2020, 10:28 AM

So, I should have mentioned that the car had a nitrous system from previous owner. I removed it during my LSA install. He had spliced the power for the nitrous into the harness that leads to the TPS. I connected the wires through a butt connector. Good friend of mine and retired mechanic chastised me for not soldering it.

I soldered yesterday and we will see if that is it. If it isn’t the TB is next.

08-05-2020, 09:36 PM	#1
Valkyrie14 Valkyrie14 Drives: Chevrolet Camaro SS Join Date: Mar 2020 Location: Eau Claire, Wisconsin Posts: 962	Another Stabilitrack post So A couple of weeks ago I was on a clear back road and I opened it up I was in third gear at above 5000 rpm and the stabilitrack flashed on and off. I slowed down and it went away. Fast forward to today. I was driving on the highway with cruise control on at about 82 in 6th gear around 1800 to 1900 rpms. AFR gauge at around 16. The service stabilitrack came on, reduced engine power came on and as I pulled off to the side of the road the car was bucking hard and at a stop idled extremely rough. I shut her down and disconnected the negative cable for a minute. Turned her back on and no issue no CEL. Drove fine. 60 miles later same thing. I haven’t plugged in my HP to see what code was thrown yet. I read other posts on this and see it could be a bunch of different things. However, the other posts I saw didn’t have the full blown reduced power service stabilitrack issue. Not a fan of taking it to the dealership I will most likely fix this myself. I will post the codes once my laptop is charged enough to pull the codes. __________________ 2014 SS LS3/LSA Supercharger, 10% Super Damper, 2.55 upper, AGP Dual Pump, ID 1050 injectors, Pegasus solid rear cradle bushings, LT Headers, Roto-Fab CAI, Elite E2 catch can, E85 corn fed, 160 Thermostat, Monster Twin Disk, MGW Short Throw shifter, Tick Clutch Master Cylinder, HP Tuners, JL Audio system.

08-06-2020, 12:03 AM	#2
Badbubba GrINned & JUICEd Drives: 15STI, 10Expy, 10 2SS/RS M6, 47KB1 Join Date: Nov 2009 Location: Pittsburgh, PA Posts: 1,247	16 afr is lean, even at light throttle. Can it be switched to lambda? A few variables with afr. Such as fuel used and what stochiometric value is programmed in the wideband. Which can skew the real value. Could be the tune or vacuum leak causing fuel trims to try to adjust, but are excessive and throwing a cel. ???? Code will help. __________________ GPI SS3 Cam & stuff,N.O. Plate(dedicated fuel tank,progressive,fuel hose upgrade,remote opener,heater,console switches),LNC2000,CTAP,ARH 1 7/8" LTs/gutted cats/X pipe/mufflers,Jet Hot coated LTs,GPI HPT Tune,CAI, Scoop,Rx Catch Can,Gates heater hose relocation, Remote clutch & auto brake res,Metco loop,Momentum Tunnel Brace,TSW Nurb 18",555 & 05,Pfadt trailing arms & toe rods,Autometer WB,Fesler Pillar Pod,LED strips (int),Lloyds floor & trunk mats,LED DRL/front turn & license plate,DRL harness,VLEDs tail lights,Plasticoat Bowties. Ord: Oct 5, 2009 Rec: Nov 19, 2009 13.17@112.6 stock

08-06-2020, 09:21 AM	#4
Valkyrie14 Valkyrie14 Drives: Chevrolet Camaro SS Join Date: Mar 2020 Location: Eau Claire, Wisconsin Posts: 962	Here is the code. 0x7E8: P2135 (Permanent) google says throttle position sensor. __________________ 2014 SS LS3/LSA Supercharger, 10% Super Damper, 2.55 upper, AGP Dual Pump, ID 1050 injectors, Pegasus solid rear cradle bushings, LT Headers, Roto-Fab CAI, Elite E2 catch can, E85 corn fed, 160 Thermostat, Monster Twin Disk, MGW Short Throw shifter, Tick Clutch Master Cylinder, HP Tuners, JL Audio system.

08-06-2020, 09:43 AM	#5
Valkyrie14 Valkyrie14 Drives: Chevrolet Camaro SS Join Date: Mar 2020 Location: Eau Claire, Wisconsin Posts: 962	Here is the DTC off of HP Attached Images __________________ 2014 SS LS3/LSA Supercharger, 10% Super Damper, 2.55 upper, AGP Dual Pump, ID 1050 injectors, Pegasus solid rear cradle bushings, LT Headers, Roto-Fab CAI, Elite E2 catch can, E85 corn fed, 160 Thermostat, Monster Twin Disk, MGW Short Throw shifter, Tick Clutch Master Cylinder, HP Tuners, JL Audio system.

08-06-2020, 03:02 PM	#6
davidscamaro Drives: 2010 SS/RS M6 BIG cam Join Date: Mar 2016 Location: McDonald's DT Posts: 857	New tps and be done with it __________________ BIG cam ...... 305 45 18 Mickys ...... BMR suspensions

08-06-2020, 01:33 AM	#3
bottletalk Drives: 15 Camaro 2SS M6 Join Date: Jan 2020 Location: BC Posts: 732	sounds like short or electrical malfunction. try to do it again then turn off the stabiltrak and see if it corrects....or check the schematic and see if anything on your intake, fuel, etc is on the same circuit as the stabiltrak.

08-06-2020, 09:52 PM	#8
bottletalk Drives: 15 Camaro 2SS M6 Join Date: Jan 2020 Location: BC Posts: 732	it could be the peddle to. short and or pcm. a bad tps shouldn’t give you a stabiltrak service indication

08-06-2020, 09:59 PM	#9
bottletalk Drives: 15 Camaro 2SS M6 Join Date: Jan 2020 Location: BC Posts: 732	actually a tps can give you a stabiltrak service indication. just checked!

08-07-2020, 08:47 AM	#10
davidscamaro Drives: 2010 SS/RS M6 BIG cam Join Date: Mar 2016 Location: McDonald's DT Posts: 857	Plus you add the bbk 95mm on top and i think the tb and tps are great places to start looking for your problem __________________ BIG cam ...... 305 45 18 Mickys ...... BMR suspensions

08-10-2020, 10:28 AM	#11
Valkyrie14 Valkyrie14 Drives: Chevrolet Camaro SS Join Date: Mar 2020 Location: Eau Claire, Wisconsin Posts: 962	So, I should have mentioned that the car had a nitrous system from previous owner. I removed it during my LSA install. He had spliced the power for the nitrous into the harness that leads to the TPS. I connected the wires through a butt connector. Good friend of mine and retired mechanic chastised me for not soldering it. I soldered yesterday and we will see if that is it. If it isn’t the TB is next. __________________ 2014 SS LS3/LSA Supercharger, 10% Super Damper, 2.55 upper, AGP Dual Pump, ID 1050 injectors, Pegasus solid rear cradle bushings, LT Headers, Roto-Fab CAI, Elite E2 catch can, E85 corn fed, 160 Thermostat, Monster Twin Disk, MGW Short Throw shifter, Tick Clutch Master Cylinder, HP Tuners, JL Audio system.