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Q: car has no power,miss,smokes. on 1992 Lexus SC400

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
removed 2 plugs black like running rich, checked fuel regulator ok no fuel in vacuum line, no codes.could it be m.a.f. sensor?
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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It's possible that the oxygen sensors or the MAF are faulty. These things can be checked out by a technician with a scanner that reads data. It's also possible that the engine is running cold or the engine coolant temperature (ECT) sensor is faulty, causing the engine to run rich.
If you want to contact a Lexus or Toyota specialist, Here's a directory link for you:
re lexus sc 400, did scan engine data with two different scan tools ,engine does go into closed loop, m.a.f. in spec's , fuel press good. scan tools do lose communication at times . o2 's are switching, runs ok at idle. miss and smoke on hard accel,ecu ?
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