Car dies when slowing down 9n3 Gti

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Remzo
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Car dies when slowing down 9n3 Gti

Postby Remzo » Sat Jan 13, 2018 9:39 am

hi guys having some issues with my car
when slowing down the car dies and the battery light comes on i did scan the car and a few errors came up

please assist
thanks in advanceImageImageImageImage

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Re: Car dies when slowing down 9n3 Gti

Postby Remzo » Sat Jan 13, 2018 12:32 pm

Remzo wrote:hi guys having some issues with my car
when slowing down the car dies and the battery light comes on i did scan the car and a few errors came up

please assist
thanks in advanceImageImageImageImage

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just a small updated i cleared the codes again finally went away but the car still dies when coming to a stop

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Re: Car dies when slowing down 9n3 Gti

Postby windshear » Sat Jan 13, 2018 6:52 pm

If you start it up after that and let it idle what happens?

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Re: Car dies when slowing down 9n3 Gti

Postby Remzo » Sun Jan 14, 2018 4:54 pm

nothing it starts on the first swing and idles and boosts fine no limp mode or anything .....just dies when coming to a stop and the battery light comes on then i have to start it again

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Re: Car dies when slowing down 9n3 Gti

Postby panic-mechanic » Sun Jan 14, 2018 6:19 pm

possibly a throttle body. Is it cable or DBW
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Re: Car dies when slowing down 9n3 Gti

Postby Pynoxim » Mon Jan 15, 2018 2:55 am

panic-mechanic wrote:possibly a throttle body. Is it cable or DBW



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Re: Car dies when slowing down 9n3 Gti

Postby MrMazda » Mon Jan 15, 2018 9:26 am

I dob't know if this could be similar to the problem I had with 2006 NA Mazda 6. Initial symptoms were similar, but progressively it worsened until it died during gear shifts. No error coded showed. Auto Electricians in Brentwood Park could solve it. It was towed to the dealer in Germiston. They used electric cleaning solvent to clean all earthing points, all electrical connectors, starting inside the car at the throttle sender and made their way to the engine bay.

The problem was resolved, it had more power & even the headlights were brighter.

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Re: Car dies when slowing down 9n3 Gti

Postby Remzo » Mon Jan 15, 2018 10:13 am

panic-mechanic wrote:possibly a throttle body. Is it cable or DBW
bjx motor bro....DBW

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Re: Car dies when slowing down 9n3 Gti

Postby Remzo » Mon Jan 15, 2018 10:14 am

should i try aligning the throttle body again?

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Re: Car dies when slowing down 9n3 Gti

Postby panic-mechanic » Mon Jan 15, 2018 11:24 am

Pointless but you can try. On DBW it does it automatically everytime you start the car.
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Re: Car dies when slowing down 9n3 Gti

Postby kreevs_tsc » Mon Jan 15, 2018 7:24 pm

I say throttle body as well, clean the throttle body and the "dying when slowing down" problem should go away.

I have seen this on many customers cars
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Re: Car dies when slowing down 9n3 Gti

Postby nico43 » Mon Jan 15, 2018 7:41 pm

I had the same issue but on my tdi and it was cam sensor.

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Re: Car dies when slowing down 9n3 Gti

Postby panic-mechanic » Mon Jan 15, 2018 8:29 pm

tdi and gti is vastly different in how it does idling. There is literally no comparison at all.
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Re: Car dies when slowing down 9n3 Gti

Postby Breadroll » Tue Jan 16, 2018 2:37 pm

The fact that the battery light comes on and a lot of faults say there are voltage drops/problems, maybe check all your earths and positive straps.

Also as Panic says it could be TB too, or it could be both.

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Re: Car dies when slowing down 9n3 Gti

Postby Remzo » Tue Jan 16, 2018 2:47 pm

ive done a big 3 up grade ...i replaced the charge wire from alternator to the battery with pure 4G copper cable ...and well as two grounds with 4gauge pure copper aswell ...the battery is holding charge aswell

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Re: Car dies when slowing down 9n3 Gti

Postby DES7 » Thu Jan 18, 2018 2:49 pm

I have seen 2 similar instances on Polo GTi's.
Are you modded? What mod's?

1. Throttle Body stays stuck and struggles to open re-when throttle applied but this hesitation can be felt when trying to accelerate again from lower speed.
2. Issue with piping or DV - basically a leak in the system.
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