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High Mileage 330xi with P1415 code
Hello everyone, I have a 330xi with 120k that I just recently purchased. I have the following codes.
P0171
P0174
P0102
P1415
I know that both o2 sensors are ( p0171 & p0174 ) but I dont believe they both failed at the same time.
I also have P0102 which is the mass air flow. The car is running extremely rich because my gas mileage is around 11mpg and my rear bumper is pretty much black.
I dont understand what the main cause of all these codes to come up is. I am about to change the mass air flow $300 because it's my last hope. I do have a p1415 secondary air pump. I dont see a secondary air pump anywhere but I believe its under the intake manifold. I hear it in the morning running fine. I've checked lines to see if there is any leak but i don't seem to find anything off. Is there anyone out there with the same problem they had that can help me diagnose this car.
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