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Old 05-03-2021, 03:40 PM   #1
Eric_Budzisch
 
Drives: 2010 Chevrolet Camaro 2ss
Join Date: Dec 2020
Location: Fort Myers, Florida
Posts: 5
ECM problems??

In a strange situation with my 2010 2ss as I continue to have throttle body issues but then proceed to have no codes being thrown at all. Already replaced the throttle body and fixed it for a little, and now the bucking is back around 2k rpm. Does anyone have any suggestions on troubleshooting or has anyone gone through this?? Not sure if I should try and replace my tps harness or pedal sensor or if it could be my ecm, no codes are thrown at all if y’all could help I’d appreciate it greatly because as of right now it’s not looking like I’m gonna keep this camaro for long if I can’t fix it
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Old 05-04-2021, 06:30 AM   #2
AlanRubin
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Drives: 2010 LS
Join Date: Feb 2021
Location: Pgh
Posts: 411
If it's not throwing any codes, how do you know WHAT the problem actually is? I am on
my THIRD throttle body, I had codes, so I know that was the problem.
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Old 05-04-2021, 09:54 PM   #3
Eric_Budzisch
 
Drives: 2010 Chevrolet Camaro 2ss
Join Date: Dec 2020
Location: Fort Myers, Florida
Posts: 5
While I am completely making the assumption it’s my throttle body, it feels as if my throttle body is failing to open correctly when driving, thus causing the bucking around 2-3k rpm. I replaced mine when it first started to happen, fixed the problem for a little then it came back and brought it to a local shop and they said they couldn’t physically find anything wrong (not very helpful) did you experience bucking when your throttle body was bad?
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Old 05-05-2021, 01:39 AM   #4
AlanRubin
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Drives: 2010 LS
Join Date: Feb 2021
Location: Pgh
Posts: 411
No bucking, went into LOW POWER mode, with the exclamation point,you see it in the
DIC. Without any codes being thrown, it's going to be all guess work.


You can pull the intake hose from the TB. Turn the car on, to RUN.
Do not start. Have someone slowly push the pedal to the floor, and
verify the plate opens and closes properly, then release the pedal to
close properly.

IF you do it THREE times, it will reset the oil life meter, so watch that.

A TB would throw a code, binding, sticking, or not closing all the way, or a bad
TPS. Pedal would also throw codes. I have had them all...

Could also be the lock-up clutch on the torque converter.

Could be phasers or VVT solenoids.

Tons of things can cause the car to buck...
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Old 05-05-2021, 02:35 AM   #5
Eric_Budzisch
 
Drives: 2010 Chevrolet Camaro 2ss
Join Date: Dec 2020
Location: Fort Myers, Florida
Posts: 5
I’ll test my throttle body during the day, the bucking comes after about 5-10 minutes in stop and go traffic so I’ll test it before driving it for a little and then after just to see how the tb acts.

This problem is definitely not made any easier by not having any codes thrown and leaves me worrying about it just about all day

Will give an update on the tb after I test it
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Old 05-09-2021, 09:02 PM   #6
Eric_Budzisch
 
Drives: 2010 Chevrolet Camaro 2ss
Join Date: Dec 2020
Location: Fort Myers, Florida
Posts: 5
So I finally have an update, it finally threw a p0700 code on the way to the gym tonight so this will most likely turn into a transmission checking game, will bring it into a local shop to get it looked at. If anyone has had this code and any similar problems please let me know!!!!
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bucking, ecm, no codes, rough drive, throttle body

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