1999 Lexus ES 300, Code P0171 Stored

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”

2003 Ford Windstar P0171 and P0174, Banks 1 & 2 Lean

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”

1997 Infiniti Q45 Poor Acceleration,Surging Idle And Service Engine Soon Light On.

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.”