Finally fixed EPS issue!!!! - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

RupertPupkin · 09-27-2024, 08:23 PM

After months of dealing with the EPS issue, I can finally say it's fixed.

-Originally put in 3 grounds.. trunk/bellhousing/block..... Result: Nothing
-New battery after 8/9 years...... Result: Nothing
-New rack $1000/reprogrammed.....Result: Fixed but service power steering would come on every other day or every after 2-3 days. I thought low voltage was causing the issue, but it wasn't that. Had history DTCs come up, cleared, but issue still arose.
-Reprogrammed the yaw sensor and that finally fixed it! No codes came up, even when ALL electrical components on, no issues.

tartagliazl1 · 09-27-2024, 08:58 PM

the stupid yaw sensor was the issue? you spent a lot of money chasing that problem. glad you got it fixed.

RupertPupkin · 09-28-2024, 04:22 PM

Quote:

Originally Posted by tartagliazl1

the stupid yaw sensor was the issue? you spent a lot of money chasing that problem. glad you got it fixed.

The steering rack was actually bad still.

SummitWhite11 · 09-28-2024, 06:28 PM

What is a yaw sensor? Never heard of this before....

CamaroDreams76 · 09-28-2024, 06:50 PM

Quote:

Originally Posted by SummitWhite11

What is a yaw sensor? Never heard of this before....

It's literally that, a sensor that measures the yaw of the car. For manual cars it actives the hill start assist.

A lot of 1LE guys would swap in a yaw sensor from an auto and it would disable the hill strt. Don't know if early 5th gens had hill start assist or not.

SummitWhite11 · 09-28-2024, 07:27 PM

Quote:

Originally Posted by CamaroDreams76

It's literally that, a sensor that measures the yaw of the car. For manual cars it actives the hill start assist.

A lot of 1LE guys would swap in a yaw sensor from an auto and it would disable the hill strt. Don't know if early 5th gens had hill start assist or not.

Is there a switch in the car for that? My 2015 Xterra PRO-4X has the hill descent switch you can manually press. For a Camaro... never knew this was a thing. for going up hill? ... Learned something new today eh!

CamaroCracka · 09-29-2024, 07:28 AM

Quote:

Originally Posted by CamaroDreams76

A lot of 1LE guys would swap in a yaw sensor from an auto and it would disable the hill strt. Don't know if early 5th gens had hill start assist or not.

I don't think mine have hill start assist.

In the 80s we would try to find cool options to upgrade our 70s base muscle cars. Now, we try to delete the factory functions because they are long run maintenance issues.

Risingson05 · 09-29-2024, 09:17 AM

Hate that damn hill assist .

Joe.G · 09-29-2024, 06:32 PM

I swapped in an auto one in my car and got rid of it, easy swap, You can override it by pulling up on the e brake a little.

CamaroDreams76 · 09-29-2024, 07:20 PM

Quote:

Originally Posted by SummitWhite11

Is there a switch in the car for that? My 2015 Xterra PRO-4X has the hill descent switch you can manually press. For a Camaro... never knew this was a thing. for going up hill? ... Learned something new today eh!

No switch in the car. Nothing in the settings either.

Works going up hill. Wether in reverse or 1st. When you are stopped it applies the brake for a few seconds preventing the car from going anywhere. The hsa applies the brakes rather aggressively and then just totally releases them.

TheBrightSide · 10-07-2024, 02:23 PM

Quote:

Originally Posted by CamaroDreams76

No switch in the car. Nothing in the settings either.

Works going up hill. Wether in reverse or 1st. When you are stopped it applies the brake for a few seconds preventing the car from going anywhere. The hsa applies the brakes rather aggressively and then just totally releases them.

Does your 2013 SS have hill start assist? I actually got it in my 9th gen (13-17) Honda Accord manual models. They would detect an incline once you clutched in, and it would hold the brakes (I believe) for about 3 seconds, and then would just release it. You would have to give it gas and start taking off, going against the brake, for it to feel tension or detect movement (not sure which, might be something entirely different) before it disengages the brakes.

Are the 5th gen Camaro manual models with HSA, all the same? I actually kinda prefer it… Not that I’m a terrible (manual) driver, but I don’t really tend to have any issues with the hill start assist. I also liked the hill hold feature in newer cars, manual or not; it’s very handy IMO.

theflea42 · 10-08-2024, 08:17 PM

My 2013 camaro ss had the hill start assist. I did try to use it, but it was more frustrating than anything. So, I swapped the part out with one from an automatic just to get rid of that stupid crap.

HOJO · 10-09-2024, 01:44 PM

Quote:

Originally Posted by RupertPupkin

The steering rack was actually bad still.

Rupert, a couple of questions.
1. What lead you to the Yaw sensor.
2. How is it reprogramed? Can it be done with HP tuner or is this a GM fix only?

Thanks, glad it got it figured out.

Joe.G · 10-09-2024, 06:16 PM

I didn't have to program my yaw sensor when I went from manual to auto.

09-27-2024, 08:23 PM	#1
RupertPupkin Drives: 2014 Camaro SS 1Le Join Date: Feb 2016 Location: IL Posts: 1,706	Finally fixed EPS issue!!!! After months of dealing with the EPS issue, I can finally say it's fixed. -Originally put in 3 grounds.. trunk/bellhousing/block..... Result: Nothing -New battery after 8/9 years...... Result: Nothing -New rack $1000/reprogrammed.....Result: Fixed but service power steering would come on every other day or every after 2-3 days. I thought low voltage was causing the issue, but it wasn't that. Had history DTCs come up, cleared, but issue still arose. -Reprogrammed the yaw sensor and that finally fixed it! No codes came up, even when ALL electrical components on, no issues. __________________ 2014 SS 1LE Money Pit/ Forged 402 CAM 22X/24X, .619/.617, 113 LSA/ LS9 Heads FIC 1200cc/DSX Aux Pump//McLeod RXT Clutch 730whp: 630Trq

09-27-2024, 08:58 PM	#2
tartagliazl1 Drives: 2013 zl1 vert Join Date: Dec 2018 Location: Rochester, New york Posts: 1,202	the stupid yaw sensor was the issue? you spent a lot of money chasing that problem. glad you got it fixed. __________________ 22% lower/ 2.5 upper/ 2” headers/ cat delete/ x-pipe/ 2 gallon x tank/ 100-3 pump/ fic 1300/ dsx aux kit/ 103mm throttle body/ big gulp 5” intake/ meth kit/ prometh lid injection/FI interchiller/ 160* stat/ ngk-7/ msd wires/ elite catch can/ tsp cam/ Che trunnions/ ported supercharger/ 1/2” lid spacer/ cnc,milled ported heads/ brick mod/BMR toe and trailing arms/ 781hp 748 tq SAE @17.3lb on a loaded dyno.

09-28-2024, 06:28 PM	#4
SummitWhite11 Drives: 2010 2LT/RS Join Date: Mar 2015 Location: Palm Coast, FL Posts: 1,788	What is a yaw sensor? Never heard of this before.... __________________ 2010 2LT/RS ZL1 Appearance package, Flow Master American Thunder Cat Back Exhaust w/ QUAD TIPS, K&N Typhoon CAI, Ported VMAX TB, OEM GM Brembo Brakes Package w/ Hawks Carbon Ceramic Pads, Night Owl Halo Kit (WIFI), Rear Oracle Blue LED Bowtie, Oracle Ghosted Painted Side LED Markers, Silver Sided Gills, OEM Satin Camaro Fuel Door, OEM Strut Tower Brace, Detroit Speed Engineering 1.5" Lowering Springs, Koni Orange STR.T Struts, Z28 rear LCA's, Black Magic rear 32" sway bar, 1LE front sway bar w/ DSE end links, Aluminum Blend Door, Evil Energy Catch Can.

09-29-2024, 09:17 AM	#8
Risingson05 Drives: 2015 zl1 m6 Join Date: Jan 2020 Location: Alaska Posts: 727	Hate that damn hill assist . __________________ 791whp 699 ft lbs torque on E30 - ported sc /heads by boost mode racing - PAT G cam /Tune PB:10.5@135

09-29-2024, 06:32 PM	#9
Joe.G Drives: 2014 2SS/RS 6SP Ashen Grey Join Date: Aug 2021 Location: NY Posts: 1,763	I swapped in an auto one in my car and got rid of it, easy swap, You can override it by pulling up on the e brake a little. __________________ GM 3.91/TrueTrac OEM ZL1 Rims, 6 Piston Brakes & Side Skirts.ACST4 Splitter/Deflectors NPP M2W,GM Short Throw,GPI Ported Rod Mod,BO White PTB,CAI/JRE Scoop, GC Aluminum DS,Stainless Works Ceramic LTH/HiFlo Cats, Hotckis 1" Springs & Chassis Max Brace BMR Adjustable Swaybars,Trailing Arms, Adjustable Toe Rod, LCA & Z28 UCA Bushings Hendrix Solid Cradle Bushings Pedders Radius Rod Inserts Strut tower brace, Moroso Catch Can,SCT X4 Dynosteve,Remote Clutch reservoir,Hero Smoked Tail and 3rd Brake Light, Diode Dynamic SL1 Fog Lights AeroForce Dual gauge/Autometer pillar mount.

10-08-2024, 08:17 PM	#12
theflea42 #938 of 1524 Drives: 2013 Hot Wheels Edition Camaro Join Date: Mar 2017 Location: West Virginia Posts: 194	My 2013 camaro ss had the hill start assist. I did try to use it, but it was more frustrating than anything. So, I swapped the part out with one from an automatic just to get rid of that stupid crap.

10-09-2024, 06:16 PM	#14
Joe.G Drives: 2014 2SS/RS 6SP Ashen Grey Join Date: Aug 2021 Location: NY Posts: 1,763	I didn't have to program my yaw sensor when I went from manual to auto. __________________ GM 3.91/TrueTrac OEM ZL1 Rims, 6 Piston Brakes & Side Skirts.ACST4 Splitter/Deflectors NPP M2W,GM Short Throw,GPI Ported Rod Mod,BO White PTB,CAI/JRE Scoop, GC Aluminum DS,Stainless Works Ceramic LTH/HiFlo Cats, Hotckis 1" Springs & Chassis Max Brace BMR Adjustable Swaybars,Trailing Arms, Adjustable Toe Rod, LCA & Z28 UCA Bushings Hendrix Solid Cradle Bushings Pedders Radius Rod Inserts Strut tower brace, Moroso Catch Can,SCT X4 Dynosteve,Remote Clutch reservoir,Hero Smoked Tail and 3rd Brake Light, Diode Dynamic SL1 Fog Lights AeroForce Dual gauge/Autometer pillar mount.