check engine light came on took it to autozone codes po171 p1150 p1130 came up what does this mean
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2000 Lexus RX300
Question: check engine light is on
Answer #1Superbob March 09, 2011, 14:28Master
All the codes refer to the 'front' (before the catalytic converters) sensors circuits having abnormal voltages.
Those codes indicate that the computer detects that the engine is running too lean (not enough fuel) and/or that the bank 1 and bank 2 front oxygen (O2) sensors' circuits are faulty.You could have airflow sensor (MAF) problems, air intake leaks, or deteriorating or faulty O2 sensors.
If you want to find a specialist, here's a directory link for you: