07-05-2020, 04:48 PM | #1 |
Drives: Looking Join Date: May 2020
Location: Houston
Posts: 10
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A8 problems
I just purchased a 2016 2ss yesterday and today the cel came on and the transmission started not wanting to shift and the D was flashing on the cluster. The codes are
P0700 just a generic tranny code P0658 this says Actuator Supply Voltage – Circuit Low I know they are both to do with the transmission. If I clear the codes it drives normal until I park it, but then they come back. Do I need to reflash the pcm and tcm or does the harness need replacing. I searched on here but I couldn’t find any clear answers.those where the only two possible solutions I could find. I told my wife I could teacher her to drive a 6spd, but she had to have an a8. |
07-05-2020, 08:27 PM | #2 |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,496
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Unwind the deal if this wasn't disclosed prior to sale, or take the car to a competent dealer or a mechanic who knows the A8 well and get the trans fixed up properly. Helpful as most people in this forum are, I don't think anyone can responsibly diagnose and solve your problem over the internet based on just a generic and a specific code. You can roll the dice, but these tranny issues are best left to experts.
__________________
2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
07-05-2020, 09:34 PM | #3 | |
Drives: 2016 2SS Convertible Join Date: May 2012
Location: St. Louis, MO
Posts: 1,702
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Quote:
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07-05-2020, 09:45 PM | #4 |
Drives: Looking Join Date: May 2020
Location: Houston
Posts: 10
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Thanks guys, I’m going to try and take it to a dealer tomorrow. Hopefully, they can fix it. If not I’ll be going back to the dealership that sold it to me.
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07-06-2020, 10:00 AM | #5 |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,496
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Good luck, mate
...and before I forget (where were my manners), to the forums, hope this will get fixed up and you'll soon be able to the beast.
__________________
2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
07-06-2020, 02:32 PM | #6 |
Drives: Looking Join Date: May 2020
Location: Houston
Posts: 10
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Woke up this morning turned the car on and it was gone. Drove it over two hours and it was fine. Dealership said it might have been a glitch.
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07-06-2020, 10:58 PM | #7 |
Drives: 2016 Blue 2SS Join Date: Mar 2016
Location: Columbus, Ohio
Posts: 612
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of course they did.
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07-07-2020, 09:52 AM | #8 |
Drives: Looking Join Date: May 2020
Location: Houston
Posts: 10
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Wife drove it across town 40miles to work and didn’t have any problems. Fingers crossed it was just a glitch.
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07-08-2020, 11:12 AM | #9 |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,496
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Apart from a bad electrical connection, it could be a weak battery, too. If the car still has the original battery, you may want to replace it anyway.
__________________
2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
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