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Getting an engine cleaned at a car wash.


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I have water dripped to lambda O2 connector, the car then running super lean 20++ not good for engine health. I had to pull o2 and run entirely on open map a day then it self  recovers.

Washing engine bay maybe OK for new car but for old car, used car heck nope. 



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engine compartment should always be clesaned by high pressure steam !   Not a good idea to use high pressure wash on electrical items !  I agree with putting a plastic bag on the alternator , protect the ECU /chip and disconnect a terminal on the battery !    

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