10-18-2021, 01:52 AM | #1 |
Drives: 2017 Camaro 2ss Join Date: Oct 2017
Location: Central California
Posts: 124
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Car Redlines in Park and Neutral by itself
I did a little pull on the highway. After I did my pull
I noticed the car was accelerating by itself. I took it from D to M and dropped gears and did nothing. Switched it to Neutral and immediately redline. Got off the highway and when I came to a stop it was like I was at the track at my car wanted to launch from a dead stop. My foot was off the gas the entire time. Now when I start the car it shuts off as soon as it starts. The only codes I'm getting right now is U0101 and P0449. |
10-18-2021, 07:30 AM | #2 |
Drives: 2017 Camaro SS Join Date: Jun 2021
Location: Waldorf, MD
Posts: 36
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take the intake off to look at the throttle body and see if its stuck open for some reason. or it could be a major vacuum leak somewhere. Do you have any mods done?
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10-18-2021, 07:36 AM | #3 |
Drives: 22 Camaro 2SS, 20 Subaru Crosstrek Join Date: Aug 2021
Location: DFW TX
Posts: 571
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Since these are throttle by wire, it could be an issue with the sender or receiver. Disconnecting the battery for 10 minutes seems to work for other electrical gremlins, maybe try that and see? It's a no-cost solution, at least, so worth a try.
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2022 | 2SS | M6 | NPP | Summit White | Carbon Flash Wheels | Black Lugs | Red Calipers | Adrenaline Red | Red Knee Pads | Nav | - 1100 - 8/16/21 - 3000 - 9/21/21 - TPW 10/18/21 - 3400 - 10/1/21 - 3800 - 10/20/21 - built 10/19/21 - 5000 - 11/12/21 - 6000 - 11/13/21 |
10-18-2021, 12:35 PM | #4 |
Drives: 2017 Camaro 2ss Join Date: Oct 2017
Location: Central California
Posts: 124
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Cleaned the Throttle Body. Looked fine, just some regular build up.
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10-19-2021, 08:25 PM | #5 |
Drives: 2017 Camaro SS Join Date: Jun 2021
Location: Waldorf, MD
Posts: 36
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Hook a code reader up to it and look at the pedal commanded position and actual pedal position. It should be under live data. I think idle is like 14% or so. Shouldn’t be anything over 20.
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10-20-2021, 08:19 AM | #6 |
Drives: Camaro ZL1, Dodge TRX Join Date: Sep 2021
Location: Ozarks
Posts: 60
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Sounds stupid, but it happened to me, make sure your floor-mat, or an obstruction, isn't resting on the accelerator pedal.
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10-24-2021, 03:13 AM | #7 |
Drives: 2017 Camaro 2ss Join Date: Oct 2017
Location: Central California
Posts: 124
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Switched out the MAF sensor. It stopped idling rough. I still have the P0101 code. People in the camaro Facebook group saying it's most likely the throttle body sensor. Will try replacing the throttle body
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