I have an intermitant problem with my 2000 Sportage. Every so often it decides that the automatic transmission is going to shift at odd rpms (sometimes way too high, other times way too low) this is also accompanied by a high engine idle (2,500-3,000 rpm). This will bring on the check engine light but the dianositc codes offer little information - Kia dealer told me it could be a bad thottle position sensor or a bad mass airflow sensor, Autozone told it was a misfire on cylinder 3. It is definitley not a misfire and could be's do not sound very definite.
Any help?
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