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#1 -- 1995 protege dx 1.5: idles rough, runs way too rich, and at a constant speed (any speed!), it will lurch and buck but as soon as either accelerate or decelerate, smooths out. only at any constant speed does it do this violent lurching. i've cleaned EGR, throttle body, had injectors...

hi, i'm new to the forum but have been reading a few weeks. i'm a fair mechanic, but raised up on older cars before computers (rebuilt my first flathead ford v8 when i was 14 years old) and a little confused in diagnosing all the sensors on the new cars and don't understand when folks use...