Q: Why won't My 1996 Ford Windstar won't pass emission? on 1995 Ford Windstar

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Bank 01 too lean,
Some mechanics said Mass air flow problem,
Others said I have four sensors, I purchased 2 new ones, still won't pass. Yesterday car wouldn't crank, black smoke was coming out of mas flow housing. black liquid lingering in housing.
(1) Answer
(2) Comments
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i would say possibel vac leak that the bank 1 o2 is picking up on.or could be mass air not change all the sensor thats not the prob.
Bless You for your quick response. Someone is coming to look at it this evening. If you could please tell me where that little roung circular screen goes. I believe the guy put it in wrong. It does not go in front of the Mass air flow. I distinctively remember it in the back of the smaller accordian housing of the throttle body (black cone shape housing) by him placing it in front of the black air flow sensor, and cleaning it with carburetor cleaner and not electrical cleaner, caused the black leaking substance in the housing as well as thew black smoke. Get back to me please, ASAP
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carb cleaner may have destroyed the sensor and if its wrong the wires will be very taunt and should not be.the sensor is normall a little closer to the throttle than the long side. the screen part goes to the fresh air side and acks as a filter kinda
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