About $30 dollars http://www.autozone.com/autozone/parts/Duralast-Throttle-Position-Sensor/2005-Mazda-MPV-2WD/_/N-jnbkxZ9gsmg?itemIdentifier=135810_0_0_ Here's the procedure http://www.ehow.com/how_6562404_replace-sensor-1992-mazda-mpv.html
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