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Old 02-11-2017, 08:52 AM   #1
amcnabb92
 
Drives: 2011 Camaro 2ss
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Throttle Body Help

I have been getting the P2135 code, and occasionally PO121, and my Camaro has been going into reduced engine power mode. When I tried to figure out what it was no one had a straight answer of what could fix it so I decided to start with replacing the throttle body. Throttle body works fine but when I go to shift it still revs up as if I am still pushing the accelerator. Also when I come to a stop in neutral the car wants to rev up to 2 rpm until I am at a complete stop, if I stay in gear and stop it wants to go to 1 rmp. Any ideas on how to fix this? I tried doing a relearn without a scan tool, I will try today with it though to see if that helps, but my next step would be to replace the accelerator position sensor and see if that helps. Any ideas would be appreciated, thanks!
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Old 02-11-2017, 11:08 AM   #2
Olddudesrule
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http://www.camaro5.com/forums/showthread.php?t=271638

Try this.
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Old 02-11-2017, 11:09 AM   #3
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Or these...

http://www.camaro5.com/forums/showth...ighlight=P0121

http://www.camaro5.com/forums/showth...ighlight=P0121

If you can find a donor TB, you can troubleshoot that quickly. You could swap it out in a few minutes, easy peasy.
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2002 Viper GTS/ACR
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2012 Nissan 370Z

ADM LSA Stage II, Roto-Fab CAI, Kooks LTH/HFC's, Phastek CC, ported TB, Mishimoto radiator and oil cooler, BC Racing ER Series CO's, JPSS 32mm Black Magic rear bar, JPSS front inserts, R1 Concepts Premier slotted rotors/Goodrich SS lines, Schroth ASM harness, MGW flatstick, Brey-Krause HB, Tuned by NicD, at Cordes Performance Racing.
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Old 02-11-2017, 11:41 PM   #4
Mortious
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Its the throttle position sensor on the pedal (70 dollar part) that is going bad (at least it was for me). Replaced the pedal, and havn't seen the issue since.
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Old 02-23-2017, 04:19 PM   #5
amcnabb92
 
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Thank you guys for your help! I will be trying the position sensor next..fingers crossed!
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Old 02-23-2017, 04:25 PM   #6
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Seem all GM products do this. Happened on my prior company car impala and truck z71.
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Old 02-23-2017, 04:35 PM   #7
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Quote:
Originally Posted by Jayjellyfish212 View Post
Seem all GM products do this. Happened on my prior company car impala and truck z71.
Not just chevys , dodge trucks it's very common for the pedal sensor to fail and get a limp mode too
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Old 02-23-2017, 06:10 PM   #8
BubbaSS
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Do you have a throttle controller? Vitesse or similar?
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Old 02-23-2017, 06:32 PM   #9
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New pedal for sale for op. Couldn't send on private message...
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