Emission System Repair BMW E46 secondary air check valve

[archiguitarchi]

Bull. I'll get the codes to you a.s.a.p.. THANKS!

[archiguitarchi]

I'm new to BMW's and mine is a 2002 325ci convertible. On cold mornings my engine squeals faintly, similar to a slipping belt, but it is not a belt. It also idles rough during that time until the car warms up. Does that have anything to do with the check valve, or would that be a secondary air pump issue? THANKS. I have a "service engine soon" light that comes and goes, and I've gotten some codes indicating a lean condition as well.

[Bullshitkorner]

@archiguitarchi what are the code numbers that you are getting

[fabianchin]

i changed the o2 sensors, the pcv, crank, vacuum lines still f5.f6 !!.. this is the next thing for me.

[fabianchin]

what happened did the code come back or was it solved? thx.

[Bullshitkorner]

@fabianchin i still get the code but only in the winter when it's cold outside. i've narrowed it down to that when its cold it takes longer for the vacuum to build so the valve takes longer to open and because of that it triggers the f5,f6 code. but i'm going to leave it at that for the moment i'm not too concerned.

[1yasineahmed]

where did you buy the secondary air injection from?



[archiguitarchi]

What made you thiink the valve was malfunctioning? What were the symptoms? THANKS.

[8soccer4life8]

did you have exsess carbon manoxide? if not can i fix it from there?