Bmw 330 ci 2006

Question

Codes po 174, Po 070, po 071, po 302.     What do all these codes mean

Answer 1

P0174 System too lean Bank 2

P0070 Ambient temperature sensor

P0302 Misfire number 2 cylinder

What code P0302 this is a misfire from the number cylinder which is not contributing , this is more likely a ignition coil , it is also a good idea to take a look at the sparkplug and replace if time for its maintance has approached, P0174 is lean code condition , because there is a misfire the ECM would not set a lean code condition. depending on how long the misfire occurred it may just be related. P0070 and P0071 this is the ambient temperature sensor, right where the hood opens the sensor is located, this code can set when the sensor is dislodge or disconnected or all together gone.