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Q: My Ranger has failed TX. emissions with high HC and NOX readings. on 1993 Ford Ranger

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Has new plugs, wires, coils, ICM, ECM, harmonic balancer pulley, new T-belt and crank sensor. Repaired/replaced vacuum lines. Smells a little rich at idle, at times, MPG is solid @ 24 mpg, mostly hiway 12 mile range to work.
need help pretty bad.
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