Project 27: O2 Sensor Replacement

[Wayne 962]

Got any questions on Project 27 for your E36 or E30? Ask them here!

-Wayne

[jadams98]

Hello,

My E36 328i used to have allot of power above 3000 rpm. However, recently after about 3000 rmp's there is little power. I have the 101 projects book and it says that it could be the o2 sensors. I have looked online at various forums and found a very wide variety of possible fixes. People have said it could be coils, fuel injectors, oxygen sensors, air intake/air filter, spark plugs. I am leaning towards something to do with the air flow system because the engine sounds like it is starved of air. Is there any way to diagnose specificly what the problem is? By perhaps testing the O2 sensors, airflow, ext.

Thanks, help would be much appreciated.