2010 ss limp mode - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Stevoss10 · 10-23-2023, 10:04 PM

Allright so I'm new to working on my car so I'm trying to learn things, but anyway I have 2010 ss it's been going into limp mode for over a year I've throwed money and parts on it that buddies or stuff I've read about, and seems like I'm in same position. So I've replaced throttle body, gas pedal, fuel pump, maf, map sensors, plugs and wires and more. I have no codes till goes in limp mode and then got anywhere from 4 to 6 codes (p0651 5v ref) usually always but it's different other times (p0122, p2135,u0109,u0073, p0430) I've had cats removed and put non foulers on oxygen sensors but it was going to limp mode before I did all that. Just bought a diablo sport tuner and car runs alot better but still limp mode. Any help or something to check would be greatly appreciated

Infidel67 · 10-24-2023, 12:56 AM

I was way off, didn't read that you already done all that. sorry about that.

gtstorey · 10-24-2023, 07:47 AM

You have a problem that is affecting the 5v reference voltage. This 5v is shared by multiple sensors and that 5v can also show up as a DTC on any of the shared sensors.

Mouse330 · 10-24-2023, 04:12 PM

You need a scanner for this diagnostics, Disconnect all the sensors on the 5v2 reference circuit. Unplug the Accelerator Pedal Position Sensor (APP), the Crankshaft Position Sensor (CKP), the brake booster vacuum sensor, the clutch pedal position sensor (if equipped), and the throttle body. Check for the 5 V reference voltage returning, Then u can plug in one at a time to see if you loose 5 V reference 2. Then u can chase that component/circuit. Also spraying a 5% salt water solutions helps with finding wiring issues. Good luck

Stevoss10 · 10-25-2023, 04:51 PM

Appreciate it guys, I'm gonna start messing with it this evening I'll let you know. Thanks again

1JEWLDSSRS · 10-25-2023, 05:25 PM

Quote:

Originally Posted by Stevoss10

Appreciate it guys, I'm gonna start messing with it this evening I'll let you know. Thanks again

Good luck sir!! Hope is is a simple deal..

10-23-2023, 10:04 PM	#1
Stevoss10 Drives: 2010 chevrolet camaro ss Join Date: Oct 2023 Location: Alabama Posts: 2	2010 ss limp mode Allright so I'm new to working on my car so I'm trying to learn things, but anyway I have 2010 ss it's been going into limp mode for over a year I've throwed money and parts on it that buddies or stuff I've read about, and seems like I'm in same position. So I've replaced throttle body, gas pedal, fuel pump, maf, map sensors, plugs and wires and more. I have no codes till goes in limp mode and then got anywhere from 4 to 6 codes (p0651 5v ref) usually always but it's different other times (p0122, p2135,u0109,u0073, p0430) I've had cats removed and put non foulers on oxygen sensors but it was going to limp mode before I did all that. Just bought a diablo sport tuner and car runs alot better but still limp mode. Any help or something to check would be greatly appreciated

10-24-2023, 12:56 AM	#2
Infidel67 Life's just a Ride Drives: 2011 Synergy Camaro 2SS/RS LS3 Join Date: Oct 2013 Location: Columbia SC Posts: 854 View My Garage	I was way off, didn't read that you already done all that. sorry about that. __________________ 2011 Synergy Camaro 2SS/RS Ls3, LTH, CAI Custom Intake, TSP stage-3 111-LSA Cam, RWHP 503/508 Last edited by Infidel67; 10-24-2023 at 11:03 PM. Reason: Removed for being a dummy

10-24-2023, 07:47 AM	#3
gtstorey Drives: 2010 Camaro SS2,L99, LSA SC Join Date: Aug 2017 Location: Huntsville, AL Posts: 2,178	You have a problem that is affecting the 5v reference voltage. This 5v is shared by multiple sensors and that 5v can also show up as a DTC on any of the shared sensors.

10-24-2023, 04:12 PM	#4
Mouse330 Drives: 2011 2SS, 2006 GMC Sierra Join Date: Jul 2019 Location: MA Posts: 266	You need a scanner for this diagnostics, Disconnect all the sensors on the 5v2 reference circuit. Unplug the Accelerator Pedal Position Sensor (APP), the Crankshaft Position Sensor (CKP), the brake booster vacuum sensor, the clutch pedal position sensor (if equipped), and the throttle body. Check for the 5 V reference voltage returning, Then u can plug in one at a time to see if you loose 5 V reference 2. Then u can chase that component/circuit. Also spraying a 5% salt water solutions helps with finding wiring issues. Good luck

10-25-2023, 04:51 PM	#5
Stevoss10 Drives: 2010 chevrolet camaro ss Join Date: Oct 2023 Location: Alabama Posts: 2	Appreciate it guys, I'm gonna start messing with it this evening I'll let you know. Thanks again