Rough Idle what can it be O2 sensor or what?

[juan525i]

92 525i having trouble with rough idling especially when engine is cold in the mourning, after it warms up it gets better sometimes and sometimes it goes away, checked intake leaks and every thing fine, what can it be, can it be the O2 sensor or any other sensor please help with your opinion

[632 Regal]

The system is in closed loop cycle, check if you have any stored stomp codes.


92 525i having trouble with rough idling especially when engine is cold in the mourning, after it warms up it gets better sometimes and sometimes it goes away, checked intake leaks and every thing fine, what can it be, can it be the O2 sensor or any other sensor please help with your opinion

[billb]

92 525i having trouble with rough idling especially when engine is cold in the mourning, after it warms up it gets better sometimes and sometimes it goes away, checked intake leaks and every thing fine, what can it be, can it be the O2 sensor or any other sensor please help with your opinion

Are you smelling oil burning as well?

[juan525i]

Are you smelling oil burning as well?

Thought it was the gasket, chaged it 4 months ago and saw no change, and ever since I bought the car it has this problem. Can it be sensor or what can it be, even when temp. is hot idling is bad sometimes and sometimes its OK, HOW DO YOU CHECK FOR STORED CODES IN MY 92 525I, M50 ENGINE?

[MarkD]

92 525i having trouble with rough idling especially when engine is cold in the mourning, after it warms up it gets better sometimes and sometimes it goes away, checked intake leaks and every thing fine, what can it be, can it be the O2 sensor or any other sensor please help with your opinion

Try replacing your coolant temp. sensor, it may be defective.

Mark

[glen-sj]

Check the condition of the oil fill cap, make sure it has a good seal when cold. New one is around $5+.

[632 Regal]

if you dont know how its posted on Brunos site.