[Supreme214]

hello everyone i need some help!
so recently my car starting to act funny... meaning when im on idle (neutral, park), rpm would rise to 750 from from 600. it feels like the engine would jump like misfire? but its not throwing any codes!!! i've changed spark plugs about 20k and coil at 88k. Currently, my car is at 92k. i think its the injector or fuel pump but without codes i dont think i can get it replaced (i do have 3rd party extended warranty). Has this happend to you guys as well?? if yes what did you do to get it fixed? and is there anyway i can check if injector and fuel pump is leaking? Thanks!
BTW my car is 2007 e90 335i (auto)
here is the video (sorry ive took this when the rpm already rise to 750)

[Digitalism]

Do a search of misfire at low rpm idle.

There seems to be quite a few cars experiencing this type of problem as of late, myself included.

To check if the injectors are leaking, start the car for a short period and then remove the spark plugs to check for any fuel present(smell of fuel) on the tips. This indicates a leaky injector.

General consensus is the car will usually run as normal with no reduction in performance at WOT. Grab a couple datalogs to confirm.

[335NJ]

Sounds dumb, but is your blower motor running? Does it happen when you have the A/C or heat OFF?

[Jeef]

^ +1

Is your AC on? Have you had carbon cleaning?

[Supreme214]

Originally Posted by 335NJ

Sounds dumb, but is your blower motor running? Does it happen when you have the A/C or heat OFF?

Ac was off. The noise is coming from engine(had door opened) and it happens when ac is off when ac is on sometimes it will shake a little.

[Supreme214]

Originally Posted by Jeef

^ +1

Is your AC on? Have you had carbon cleaning?

Ac was off and yes ive had carbon cleaned at 85k. Im currently at 92k