Is It OK To Drive With P0171 Code? It is okay to drive a vehicle with P0171 for a short period of time, but driving with this code for an extended period of time can overheat the engine and cause internal engine damage. How much does it cost to fix P0171 code? What is the
Can A Bad EGR Valve Cause A Lean Code? Unwanted EGR flow at idle, even in very small amounts, causes a type of rough running that may easily be misidentified as a lean condition (somewhat more likely in MAP-based fuel systems). What are the symptoms of a faulty EGR valve? Your engine has a rough
Can EGR Valve Cause Lean Condition? Can EGR valve cause lean condition? Any vacuum leak, including the leak in the EGR valve control system that you described, could cause the P0153 code. If the two codes do not recur, you should still check the output of the oxygen sensor for correct waveform and output (switching