2004 Mazda Mazda6 Q&A
2004 Mazda Mazda6 Question: have code p0171
The P0171 indicates a lean air-fuel ratio. It could sets by several different reasons i.e.: dirty, restricted injectors, bad or dirty Mass Air Flow Sensor, disconnected or leaking vacuum hoses, leaking intake manifold gasket, leaking exhaust , O2 sensor etc... You can check for disconnected or broken vacuum hoses and maybe clean the MAF sensor. CRC sells a good MAF cleaner, you can buy it in most parts store. Don't use other chemicals, you can damage the sensor. Zee - ZeeTech
what could be the prob?
I started to receiving these error codes on my 03 Mazada6s. Engine is currently running fine, but wanted to know some tips on getting this corrected. Thoughts?
Are these my 02 sensors