Mechanics

HIGH IDLE AND SUTTERS

1991 Mazda b2200

Engine Performance problem
1991 Mazda b2200 4 cyl Two Wheel Drive Manual 132795 miles

I have a 91 Mazda b2200 with 132795 miles two wheel drive with a 2.2 and manual trany, at first the idle would only go up when I got off the freeway and then after about a mile it would run normal, but now it revs high, sputters and exhsaust smells like sulfur, I have changed the 02 sensor and the collant temp. Sensor as well, could it be the IAC or maybe the fuel pressure regulator?Would you please give me a ckue THANK YOU.

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OsCal
June 11, 2009.



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