Throttle Position Sensor? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Brazensol · 07-15-2021, 08:00 PM

Went to the store 2 days ago and while in 2nd gear I blipped the throttle and... nothing. Engine did not respond at all. Tried several more times and it only partially responded once or twice. If shifting while driving "normal" then no issues and if I give it a little gas while in second and then nail it, it seems fine. It also was doing this in 4th but not in third (though maybe a tiny bit of hesitation in 3rd sometimes). 1st gear seems OK too. Any ideas?

I installed headers recently and the only codes I pulled are P0030, P0036, P0050, P0053, and P0054 which all seem to be the usual O2 sensor issues with headers/cat delete.

L99MARO · 07-15-2021, 09:47 PM

Is your car tuned for the headers?, Maybe clear the codes with a scanner?

Axe55 · 07-16-2021, 07:00 AM

Sounds more like the throttle pedal to me. If there's a voltage difference between the pedal position and throttle body position you'll get a P2135 code (happened to me). If the pedal is not responding to your input at all, the throttle body would think it's still ok because the pedal voltage isn't changing and telling it to do anything. The pedal is easy to change, three bolts and one plug if I remember correctly.

Brazensol · 07-16-2021, 12:31 PM

Quote:

Originally Posted by Axe55

Sounds more like the throttle pedal to me. If there's a voltage difference between the pedal position and throttle body position you'll get a P2135 code (happened to me). If the pedal is not responding to your input at all, the throttle body would think it's still ok because the pedal voltage isn't changing and telling it to do anything. The pedal is easy to change, three bolts and one plug if I remember correctly.

Thanks. I didn't think of that and will take a closer look at it. So far I don't have any codes except for the O2 sensors.

SSFury · 07-16-2021, 03:11 PM

Better question: Are you running a Vittesse Throttle Controller!!

If you are, that did it!! ASK ME how I know..

Brazensol · 07-16-2021, 03:56 PM

Quote:

Originally Posted by SSFury

Better question: Are you running a Vittesse Throttle Controller!!

If you are, that did it!! ASK ME how I know..

No. Is that one of those throttle signal boosters?

SSFury · 07-19-2021, 01:53 PM

Throttle Signal Boosters... that's one way of describing it I suppose. If you do a search on the forums, there's lots of discussions about them. Spoiler alert: Vittesse's controller is NOTORIOUS for going bad and throwing your car into Reduced Power Mode. That's why I thought maybe you were running one, and didn't realize that's what caused it.

JD555 · 07-19-2021, 06:21 PM

Do you have a manual trans? I noticed with the clutch in it will rev to the moon when blipping but with the clutch out it will only responds maybe half what it would with the clutch in. I asked the question here when I got it. It seemed strange to me.

07-15-2021, 08:00 PM	#1
Brazensol Drives: 2013 2SS Join Date: Mar 2014 Location: Alaska Posts: 263	Throttle Position Sensor? Went to the store 2 days ago and while in 2nd gear I blipped the throttle and... nothing. Engine did not respond at all. Tried several more times and it only partially responded once or twice. If shifting while driving "normal" then no issues and if I give it a little gas while in second and then nail it, it seems fine. It also was doing this in 4th but not in third (though maybe a tiny bit of hesitation in 3rd sometimes). 1st gear seems OK too. Any ideas? I installed headers recently and the only codes I pulled are P0030, P0036, P0050, P0053, and P0054 which all seem to be the usual O2 sensor issues with headers/cat delete.

07-16-2021, 07:00 AM	#3
Axe55 Drives: 2012 Camaro SS Join Date: Jun 2019 Location: Toronto Posts: 159	Sounds more like the throttle pedal to me. If there's a voltage difference between the pedal position and throttle body position you'll get a P2135 code (happened to me). If the pedal is not responding to your input at all, the throttle body would think it's still ok because the pedal voltage isn't changing and telling it to do anything. The pedal is easy to change, three bolts and one plug if I remember correctly. __________________ 2012 Camaro SS LS3, JRE Scoop, CAI intake, Whipple Supercharger, Fast 85lb injectors, ZL1 pump, McLeod RXT clutch, MGW shifter, Stainless Power 1 7/8 headers w/HFC, Ridetech coilovers, BMR sway bars, trailing arms, toe rods, cradle bushing inserts, 2020 Speed Tuned.

07-16-2021, 03:11 PM	#5
SSFury My Road Rage is Legendary Drives: 2011 IOM 2SS/RS "Fury" Join Date: Nov 2010 Location: Sahuarita AZ Posts: 735 View My Garage	Better question: Are you running a Vittesse Throttle Controller!! If you are, that did it!! ASK ME how I know.. __________________ Every Time You Buckle Up In That Car, Tonight Might Be The Night That You Die.

07-19-2021, 01:53 PM	#7
SSFury My Road Rage is Legendary Drives: 2011 IOM 2SS/RS "Fury" Join Date: Nov 2010 Location: Sahuarita AZ Posts: 735 View My Garage	Throttle Signal Boosters... that's one way of describing it I suppose. If you do a search on the forums, there's lots of discussions about them. Spoiler alert: Vittesse's controller is NOTORIOUS for going bad and throwing your car into Reduced Power Mode. That's why I thought maybe you were running one, and didn't realize that's what caused it. __________________ Every Time You Buckle Up In That Car, Tonight Might Be The Night That You Die.

07-15-2021, 09:47 PM	#2
L99MARO #teamGPI Drives: 2010 Camaro SS Join Date: Aug 2020 Location: Bay area Posts: 141	Is your car tuned for the headers?, Maybe clear the codes with a scanner?

07-19-2021, 06:21 PM	#8
JD555 Drives: 2014 2SS RS, 6 sp man Join Date: Feb 2016 Location: Marlton, NJ Posts: 461	Do you have a manual trans? I noticed with the clutch in it will rev to the moon when blipping but with the clutch out it will only responds maybe half what it would with the clutch in. I asked the question here when I got it. It seemed strange to me.