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House I need your help. My Acura MDX 2002 emits black smoke even after changing air flow meter. A scan revealed some error which the mechanic said it's my 4 oxygen sensors that need to be changed. Please experts in the house help

Harbb:
House I need your help. My Acura MDX 2002 emits black smoke even after changing air flow meter. A scan revealed some error which the mechanic said it's my 4 oxygen sensors that need to be changed. Please experts in the house help

What was the scan result? If you have it post it here. If you need a good fix and you are in lagos call multiautolab on 08156087872 or 08165520837

Your mechanic may be right... My accord 03 has black smoke until i changed air/fuel ratio sensor and 02 sensor.
Well post the codes here for our professional mechanics to see

Harbb:
House I need your help. My Acura MDX 2002 emits black smoke even after changing air flow meter. A scan revealed some error which the mechanic said it's my 4 oxygen sensors that need to be changed. Please experts in the house help

what test did your mechanic perform that makes him to conclude your are changing all four 02 sensor at once .Haba this is trial and error thing o ,how can all go four go bad at once ?for your car to bringing out a black smoke ,you definitely have a stuck lean or rich input device which can be faulty that your ecu is using as a basis for commanding the injector to be sending more fuel .
You need a competent auto diagnostics to accurately determine what the issue .
If you are in lagos ,call autologic @08061166316 to resolve for u .They have successfully resolve similar issue with the aid of their state of the art diagnostics equipment .