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I have heard that one way to check AOS is to remove oil cap while engine is running. If it is hard to remove or a sucking sound it could be a failing AOS. So i tried it and it caused the car to rev or get audibly louder and there is a sucking sound. does this mean bad AOS?
- I plan to clean MAF
- Check air system for leaks
- idk what i can do about low fuel pressure
- or volume of fuel pump thing
- or how to check injectors.
- and I should be able to hear an exaust leak which i dont.
thanks for the help! ill check into these asap
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