BLACK SMOKE FROM LEXUS RX 300

Please what might have been the possible cause of the Lexus RX 300 model2000 puffing out black carbon smoke after changing the plugs and servicing the injector nozzles

Squeaking

Front driverside in the wheel area is squeaking alot. I have a Lexus 300 rx

My 1991 Lexus 400 Ls

Hi:

I have a 1991 Lexus 400 Ls with sensor trac shocks all the shocks are in bad shape and since this shocks are very spencers I was wondering is I can replace them with regular shocks. Can anyone help me please.

Thanks

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