HELP! Just threw a P2135 and car is in limp mode (NOW P2101) - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

DMan918 · 06-15-2021, 11:55 AM

Hi all,

Hope you can help me out. I was driving down the neighborhood street, going maybe 20 mph and at a pretty low RPM (likely 1200rpm or so - trying to keep the exhaust quiet), and suddenly the car started making a noise, entered reduced power mode, check engine light on, also said stabilitrak disabled. Limped my way back to the house and ran the code through maestro. The one code is P2135.

To note, I have a Bo White stage 2 throttle body with a DynoSteve tuned for it. Been running fine for a couple months and this suddenly happened. Throttle body was clean when installed. Think its the throttle body or maybe the pedal sensor? How to test for it?

Does anyone know what the issue is and what I need to do to fix it?

I really appreciate the help!!!

***UPDATE***
I went ahead and cleaned the throttle body and cleared the code. Went for a drive and immediately got a P2101 code. Car went back into limp mode and sounded really bad with a terrible idle. I have a video of it at idle if necessary.

***UPDATE #2****
See post #7. Seems to be ok for the time being.....

****UPDATE #3****
No such luck. It’s back. P2135 and car runs like crap and reduced power. Additional help requested.

Bildo · 06-15-2021, 01:54 PM

Clear the code, clean the throttle body with TB cleaner verify the connection to your TPS is on solidly.

DMan918 · 06-15-2021, 02:20 PM

Quote:

Originally Posted by Bildo

Clear the code, clean the throttle body with TB cleaner verify the connection to your TPS is on solidly.

OK I will start with that. Any specific brand recommended? CRC fine? Thanks!

Bildo · 06-16-2021, 07:21 AM

As long as it specifically says throttle body cleaner you should be fine

DMan918 · 06-16-2021, 07:30 AM

Quote:

Originally Posted by Bildo

As long as it specifically says throttle body cleaner you should be fine

Great thanks! I’ll do it today and report back.

DMan918 · 06-16-2021, 10:34 AM

Quote:

Originally Posted by Bildo

As long as it specifically says throttle body cleaner you should be fine

Hi Bildo,

I went ahead and cleaned the throttle body and cleared the code. Went for a drive and immediately got a P2101 code. Car went into limp mode and still has the really bad, rough idle. What are your thoughts? Thanks for all your help.

DMan918 · 06-16-2021, 11:40 AM

Quote:

Originally Posted by Bildo

As long as it specifically says throttle body cleaner you should be fine

2nd update - I went ahead and cleared the code, then disconnected my battery for 10 minutes. Plugged it back in, and now everything seems fine. Throttle is pretty sensitive but I think that's part of it now recalibrating?

So I guess now I should just monitor and report back if it comes back?

Bildo · 06-16-2021, 07:19 PM

Yeah I went through some similar stuff, clean it good and make sure it's clear is usually a fix. In HP Tuners I used to have to occasionally go through the clean intake process where I would have to relearn idle, but that's tons of mods. I wouldn't hesitate to talk with DynoSteve, I have spent literally thousands with him on parts and he has always been a super stand up dude, he could ask you to data-log if it becomes an issue.

DMan918 · 06-16-2021, 07:24 PM

Ok great. Thanks for all your help. I truly appreciate it!

Bildo · 06-16-2021, 08:30 PM

Quote:

Originally Posted by DMan918

Ok great. Thanks for all your help. I truly appreciate it!

No problem that is what the forum is for.

DMan918 · 06-20-2021, 08:30 AM

Quote:

Originally Posted by Bildo

No problem that is what the forum is for.

Well it just came back. P2135 again. Same symptoms. Suggestions on what next? Thanks.

fz4k98 · 06-20-2021, 08:42 AM

i had this happen on two of my chevrolet vehicles. Both times I did a good throttle body cleaning but also included a MAF sensor cleaning and the proble was gone.

Maf sensor is a simple 5 minute item to try.

DMan918 · 06-20-2021, 08:43 AM

Quote:

Originally Posted by fz4k98

i had this happen on two of my chevrolet vehicles. Both times I did a good throttle body cleaning but also included a MAF sensor cleaning and the proble was gone.

Maf sensor is a simple 5 minute item to try.

Ok I’ll try cleaning the Maf sensor too. Can I use the throttle body and air intake cleaner or do I need actual maf cleaner?

Greenhornet2 · 06-21-2021, 08:08 AM

Most likely Throttle body. Cleaning it won't do anything. ECM is seeing an issue between tps1 and tps2 sensors in the throttle body.

06-15-2021, 11:55 AM	#1
DMan918 Drives: 2012 Camaro SS Convertible 6MT Join Date: Jun 2020 Location: Algonquin, IL Posts: 258	HELP! Just threw a P2135 and car is in limp mode (NOW P2101) Hi all, Hope you can help me out. I was driving down the neighborhood street, going maybe 20 mph and at a pretty low RPM (likely 1200rpm or so - trying to keep the exhaust quiet), and suddenly the car started making a noise, entered reduced power mode, check engine light on, also said stabilitrak disabled. Limped my way back to the house and ran the code through maestro. The one code is P2135. To note, I have a Bo White stage 2 throttle body with a DynoSteve tuned for it. Been running fine for a couple months and this suddenly happened. Throttle body was clean when installed. Think its the throttle body or maybe the pedal sensor? How to test for it? Does anyone know what the issue is and what I need to do to fix it? I really appreciate the help!!! *UPDATE* I went ahead and cleaned the throttle body and cleared the code. Went for a drive and immediately got a P2101 code. Car went back into limp mode and sounded really bad with a terrible idle. I have a video of it at idle if necessary. *UPDATE #2 See post #7. Seems to be ok for the time being..... UPDATE #3** No such luck. It’s back. P2135 and car runs like crap and reduced power. Additional help requested. Last edited by DMan918; 06-20-2021 at 08:32 AM.

06-16-2021, 07:21 AM	#4
Bildo Drives: 2012 2SS/RS LS3 Join Date: Dec 2011 Location: Omaha, Nebraska Posts: 1,677	As long as it specifically says throttle body cleaner you should be fine __________________ 2012 2SS M6, ERL Superdeck 6 427, PRC 255 Heads, Procharger F1A w/ 3.85 pulley, 1300hp intercooler, Squash Dual 450lph, E85, ID1700, RXT Clutch, DSS 1pc driveshaft, GForce axles, Eaton Detroit Trutrac, a bunch of other crap I don't feel like typing.

06-16-2021, 07:19 PM	#8
Bildo Drives: 2012 2SS/RS LS3 Join Date: Dec 2011 Location: Omaha, Nebraska Posts: 1,677	Yeah I went through some similar stuff, clean it good and make sure it's clear is usually a fix. In HP Tuners I used to have to occasionally go through the clean intake process where I would have to relearn idle, but that's tons of mods. I wouldn't hesitate to talk with DynoSteve, I have spent literally thousands with him on parts and he has always been a super stand up dude, he could ask you to data-log if it becomes an issue. __________________ 2012 2SS M6, ERL Superdeck 6 427, PRC 255 Heads, Procharger F1A w/ 3.85 pulley, 1300hp intercooler, Squash Dual 450lph, E85, ID1700, RXT Clutch, DSS 1pc driveshaft, GForce axles, Eaton Detroit Trutrac, a bunch of other crap I don't feel like typing.

06-21-2021, 08:08 AM	#14
Greenhornet2 Drives: 2011 Camaro 2SS LS3 Whipple Join Date: May 2019 Location: Connecticut Posts: 1,925	Most likely Throttle body. Cleaning it won't do anything. ECM is seeing an issue between tps1 and tps2 sensors in the throttle body. __________________ Whipple 2.9 CAI ID1050x injectors ZL1 Pump JRE FPCM JMS Voltage booster JRE Rough Idle blower cam BTR .660 springs CHE trunnion kit 1 7/8 Speed Engineering Borla Atak JRE scoop 1.5" lowering springs BMR trailing arms and toe links Cradle inserts 704WHP 603WTQ 93 octane

06-15-2021, 01:54 PM	#2
Bildo Drives: 2012 2SS/RS LS3 Join Date: Dec 2011 Location: Omaha, Nebraska Posts: 1,677	Clear the code, clean the throttle body with TB cleaner verify the connection to your TPS is on solidly. __________________ 2012 2SS M6, ERL Superdeck 6 427, PRC 255 Heads, Procharger F1A w/ 3.85 pulley, 1300hp intercooler, Squash Dual 450lph, E85, ID1700, RXT Clutch, DSS 1pc driveshaft, GForce axles, Eaton Detroit Trutrac, a bunch of other crap I don't feel like typing.

06-16-2021, 07:24 PM	#9
DMan918 Drives: 2012 Camaro SS Convertible 6MT Join Date: Jun 2020 Location: Algonquin, IL Posts: 258	Ok great. Thanks for all your help. I truly appreciate it!

06-20-2021, 08:42 AM	#12
fz4k98 Drives: 2013 1ss Join Date: Jul 2012 Location: WI. Posts: 519	i had this happen on two of my chevrolet vehicles. Both times I did a good throttle body cleaning but also included a MAF sensor cleaning and the proble was gone. Maf sensor is a simple 5 minute item to try.