Car hesitate at light throttle

[andrei.m4]

Hello, i post this in ideea someone maybe know whats happend with my car, F82 2015 dct, 6 months ago issue started, at light throttle in 5th gear car hesitate, all car bogging like a misfire, from 2 months ago started on 6th and 7th gear also but very easy not powerful like in 5th gear. I mention in 5th gear it do only at light throttle, if i press a little more the acceleration it stops and car increase speed very linear. No errors or codes on ista. Problem started on stock car and i tried with a tune but without succes.
Car have new injectors, new coils, new plugs, new aluminium charge pipes.
Any modes from 6 months ago are the downpipes but same, no difference.
New oil and filters at gearbox.
Mention, in the morning with car cold i let it to warm like 5 minutes and when i go first 5-8 minutes no hesitate on 5th gear.
I hope someone have an ideea about my problem. I think to change o2 sensors but i don t know if will solve my problem.
Car run great and powerfull at full throttle.

[behindthen0thing]

whats your boost doing? stock turbos?

[deeldoo]

Originally Posted by andrei.m4

Hello, i post this in ideea someone maybe know whats happend with my car, F82 2015 dct, 6 months ago issue started, at light throttle in 5th gear car hesitate, all car bogging like a misfire, from 2 months ago started on 6th and 7th gear also but very easy not powerful like in 5th gear. I mention in 5th gear it do only at light throttle, if i press a little more the acceleration it stops and car increase speed very linear. No errors or codes on ista. Problem started on stock car and i tried with a tune but without succes.
Car have new injectors, new coils, new plugs, new aluminium charge pipes.
Any modes from 6 months ago are the downpipes but same, no difference.
New oil and filters at gearbox.
Mention, in the morning with car cold i let it to warm like 5 minutes and when i go first 5-8 minutes no hesitate on 5th gear.
I hope someone have an ideea about my problem. I think to change o2 sensors but i don t know if will solve my problem.
Car run great and powerfull at full throttle.

does it only do it in low rpm range?

Say 5th gear 1800 rpm?

If so mine does the same thing it kind of makes a deep sound and hesitates, almost drones

[andrei.m4]

Stock turbos, boost is fine at full throttle, it makes only at light throttle, under 10% acceleration and under 1600-1700rpm, most noticeable is under 1500, is not a drone, just like a short ignition or fuel cut.
If i am at low rpm and i press more the throttle, car start to accelerate very linear, no hesitate.

[deeldoo]

Originally Posted by andrei.m4

Stock turbos, boost is fine at full throttle, it makes only at light throttle, under 10% acceleration and under 1600-1700rpm, most noticeable is under 1500, is not a drone, just like a short ignition or fuel cut.
If i am at low rpm and i press more the throttle, car start to accelerate very linear, no hesitate.

mine does the same thing, don't accelerate at all below 2000, lugging the engine imo, if it doesn't feel good it means it isn't good. Downshift get over 2k and you will be fine.

[andrei.m4]

I want to solve this problem...
Your car do same? In the morning first 5-8 minutes of running no problems on light throttle in 5th gear?

[Samf82m4]

Originally Posted by deeldoo

mine does the same thing, don't accelerate at all below 2000, lugging the engine imo, if it doesn't feel good it means it isn't good. Downshift get over 2k and you will be fine.

Did you ever fix this?

[andrei.m4]

Yes. Dct cars clutch wear. New clutch basket solved all problems. Car smooth again. But after 50 launches again started to do same thing but very very light, I stopped launch the car and it run fine.

[smokinjo]

Originally Posted by andrei.m4

Stock turbos, boost is fine at full throttle, it makes only at light throttle, under 10% acceleration and under 1600-1700rpm, most noticeable is under 1500, is not a drone, just like a short ignition or fuel cut.
If i am at low rpm and i press more the throttle, car start to accelerate very linear, no hesitate.

Any solution for this hesitation it’s even on free reving below 2k above two 2k is perfect

[baldeagleman]

Mine does this same thing but 6MT. Always does it when cold, but after it warms up it's fine. I've noticed it a lot in 2nd/3rd when I'm leaving work and am in traffic. Was thinking about doing coils + sparks but I guess I won't now since that didn't fix anything

[MetzgerMeister]

I had something similar which turned out to be failed turbo inlet O-rings. Since I replaced them the car is much better.

[S65V8M3E92]

Did anyone fix this? Having the same issue

[maxm4]

Originally Posted by MetzgerMeister

I had something similar which turned out to be failed turbo inlet O-rings. Since I replaced them the car is much better.

Did you have weird data logs?

[maxm4]

Originally Posted by S65V8M3E92

Did anyone fix this? Having the same issue

Hello, did u ever fix this? My car is doing this and it’s driving me insane can’t figure it out

[S65V8M3E92]

Originally Posted by maxm4

Hello, did u ever fix this? My car is doing this and it’s driving me insane can’t figure it out

Bro I finally caught the error and finally fixed it after spending over $2000 it was the
INJECTOR WIRING IGNITION COIL HARNESS

eBay around $40-60 used, change out the whole harness pretty easy and mines been good for over 3 months now.


Part number : 12517850995

[maxm4]

Originally Posted by S65V8M3E92

Bro I finally caught the error and finally fixed it after spending over $2000 it was the
INJECTOR WIRING IGNITION COIL HARNESS

eBay around $40-60 used, change out the whole harness pretty easy and mines been good for over 3 months now.


Part number : 12517850995

What was the issue with it? How did u figure out that was it?

[AJ_M4]

Hi all, how did you solve your issues? I’m experiencing this same thing , I have changed the dct box and clutch and still having issues