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CHECK ENGINE LIGHT AND D4 FLASHING

Car: Acura, Legend, 1993     -    Back to Fix-It    -    Acura Legend Repair Manuals

Q.i HAVE A 1993 ACURA LEGEND, CHECK ENGINE LIGHT AND D4 FLASHING, REPLACED VSS SENSOR, WORKED FOR ABOUT TWO WEEKS AND RETURNED, TR, ANS SLIP WHEN SHIFTING TO 4TH, FGAILED EMISSIONS, HC PPM AND THE CO% WERE 3X THE LIMITS. WHAT COULD BE THE PROBLEMS?

More Info required It sounds like more than one thing is going on here,
did this all start at the same time?
any recent work on the car?
has there been any moisture on the passenger floor?

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