Lambda bank 1 too lean.
05-17-2018, 04:41 PM
#4
There is no "left" and "right" on the 2.0T engine.
Assuming you have "too lean" message, you need to look for the air leak.
the popular approach is to start with the replacing the PCV valve. Absolutly must replace it with the latest edition of the OEM valve. Cheap valve inserts tend to create too much vacume and blow off the main valve.
If the PCV replacement will not fix the problem, you will have to hunt down the air leak. Air intake or Vacuum tubes around brake booster can have cracks. You can replace them or find someone with the smoke manchine. or simulate the smoke machine with a cheap cigar. If that does not help, you really on your own with replacing all sorts of parts like dipstick, MAF sensor, Main seal, etc.
Assuming you have "too lean" message, you need to look for the air leak.
the popular approach is to start with the replacing the PCV valve. Absolutly must replace it with the latest edition of the OEM valve. Cheap valve inserts tend to create too much vacume and blow off the main valve.
If the PCV replacement will not fix the problem, you will have to hunt down the air leak. Air intake or Vacuum tubes around brake booster can have cracks. You can replace them or find someone with the smoke manchine. or simulate the smoke machine with a cheap cigar. If that does not help, you really on your own with replacing all sorts of parts like dipstick, MAF sensor, Main seal, etc.
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