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Lexus
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1990
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LS 400
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/O Codes
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Poor Acceleration
Poor Acceleration
Check solenoid No. 1 and No. 2 circuit. See CODE 62 and CODE 63 in TESTS W/CODES article.
Check transmission for mechanical failure.
Check ECU. See SYSTEM/COMP TESTS article.