01' 330CI Vibrating Frantically On Startups

[Kenny2g]

Guys, a quick update.

1 Month ago, I changed the Spark Plugs for the first time in 3yrs.
1 Week ago, I changed the oil (Had the oil people do an oil System Flush) before changing the oil.


THE ISSUE: Once I start the car, it VIBRATES Frantically for a while before it subsides. The vibration lasts for about 5 minutes till it runs smoothly.

Another thing is that once the car heats up and is in movement, it drives normal.

I had a diagnostic done and it came back as the following:


Definition: Fuel Trim Bank one Condition

Explanation: The Powertrain Control module uses the oxygen sensor to calculate the air/fuel ratio of the engine. The computer has recognized a rich or lean condition on one engine bank only.

Probable Causes:

1. If bank one and two codes set together suspect fuel pressure or MAF (Mass Air Flow) sensor
2. Oxygen sensor defective
3. Ignition misfire-repair
4. Fuel Injector problem


Ok...I have no idea what to do. I'm guessing its the Oxygen Sensors. Please fell free to tell me if anyone has experienced this problem before.

 

[yogi799]

I am also getting a vibration on cold starts and for about 5 minutes. Pretty dang sure it's running on 5 or less cylinders.

Did changing spark plugs help your problem???

 

[Kenny2g]

I am also getting a vibration on cold starts and for about 5 minutes. Pretty dang sure it's running on 5 or less cylinders.

Did changing spark plugs help your problem???

NO...I didn't change the Spark plug anymore. I went to the dealership and they identified a torn hose by the intake.

(Air Mass Meter Boot; Lower B3132-238541) They say it's very common in E46's. http://catalog.autohausaz.com/autohausaz/detailw.jsp?sid=pnshvru0mqmxcj55w2imi545&partner=autohausaz&product=13541438759

A VERY cheap part online...They charged me $168 to change it. The car now runs fine. No more rough idle, No more Shaking, No more shutting off at times.

Hope this is what you got too.