[chappy]

Hi guys
This has me stump for about 3 months now i have a 2008 335 done about 25000kms and i had procede v4 but on map1 or 2 in DS mode using paddles from standstill in 1st moving at around 3000rpm change into 2nd the car faulters like a double kick just start of 2nd gear when boost comes on,
If you floor the car changing gears is perfect no miss or jerking only around 3000rpm then updated to v5 no change still the same been changing all the settings but no good.
Back on 0 stock map you can feel a very very small faulter changing from 1st to 2nd the higher boost of procede amplifies it dramatically.
Does not throw any codes what so ever.
I it spark plugs injectors or coils
Any idea.

[secretsquirrel]

If your car hasn't had the spark plugs changed, it's time.

[chappy]

Originally Posted by secretsquirrel

If your car hasn't had the spark plugs changed, it's time.

Spark plugs have not been changed yet, the car really only drives in the city not much highway driving could the spark plugs be fouling up.
15,500mls is not many miles or 25000kms.

[secretsquirrel]

Originally Posted by chappy

Spark plugs have not been changed yet, the car really only drives in the city not much highway driving could the spark plugs be fouling up.
15,500mls is not many miles or 25000kms.

It's not a whole lot of mikes for plugs, but Vishnu is recommending that you change your plugs at 15k if you're modified. I'm sure the other tuners are recommending similar intervals. And really, changing plugs is the easiest and quickest thing you can do with really no downsides. I've got to order dome plugs today.

[Ilma]

Originally Posted by chappy

Hi guys
This has me stump for about 3 months now i have a 2008 335 done about 25000kms and i had procede v4 but on map1 or 2 in DS mode using paddles from standstill in 1st moving at around 3000rpm change into 2nd the car faulters like a double kick just start of 2nd gear when boost comes on,
If you floor the car changing gears is perfect no miss or jerking only around 3000rpm then updated to v5 no change still the same been changing all the settings but no good.
Back on 0 stock map you can feel a very very small faulter changing from 1st to 2nd the higher boost of procede amplifies it dramatically.
Does not throw any codes what so ever.
I it spark plugs injectors or coils
Any idea.

You could try resetting your transmission adaptation.

I had a similar symptom when shifting from 2nd to 3rd gear at around 3-4K rpm at part throttle with a bit of boost on tap.

Completely eliminated it for me.

The AT tranny is adaptive to your driving style and learns shifting patterns......sometimes not so well.

[dzenno]

Think Shiv is coming out with a fix for this, no?

[enrita]

i noticed that lowering boost response helps to have a smoother gear change on AT. I run 50 on map 1 and 80 on map 2 .