Posted a couple of weeks ago, had a problem with my fuel pump. got that fixed and a week later check engine lights back on with same whistling sound when i give gas after a stop or lights. the whistling sound usually stops after my foot is off the gas. same code ''system too lean, bank 1 and 2. Please help me someone.
It can also be th MAF sensor being dirty. Google how to clean it. It's not difficult you can do it your self. You'll need MAF cleaning spray that's it. Google it though you don't want to mess it up.
It sound more like you have a vacuum leak then a bad fuel pump that's why you keep getting lean codes have some one rev the engine slightly while you listen under the hood for the whistling noise the whistle is the vacuum leak
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