This 1999 Lexus ES300 came in with the service engine soon light on. I did a quick code check and found code P0171 stored. Fuel system lean bank one. I believe in checking simple things first and the Mass Air Flow sensor is very easy to access and remove. One plug and two screws. Pull … Continue reading “1999 Lexus ES 300, Code P0171 Stored”
This 2003 Ford Windstar came in with the service engine soon light on. Checking code revealed codes P0171 and P0174, banks 1 and 2 lean. I checked for vacuum leaks and none were found so I moved on to the Mass Air Flow sensor. It is common for them to get dirty and cause these … Continue reading “2003 Ford Windstar P0171 and P0174, Banks 1 & 2 Lean”
This 1997 Infiniti Q45 came in with the complaints of poor acceleration,surging idle and the service engine soon light on. I checked codes and found 9 codes stored. I knew that most were probably induced or false codes so I cleared the codes and then ran the engine till the SES light came back on. … Continue reading “1997 Infiniti Q45 Poor Acceleration,Surging Idle And Service Engine Soon Light On.”