engine hesitation at operating temp

CTDiesel at aol.com CTDiesel at aol.com
Mon Dec 30 14:20:25 EST 2002

4kq, between 1000-2000 rpm when getting up to speed the car hesitates
significantly until it reaches 2000rpm and then acts like it opens up with
lots of power.  I finally fixed the cold start problem with a new water temp
sensor and but the air/fuel mixture back into closed loop.   The O2 sensor
does show the correct flip flop of .2 - .7 volts.  What are the chances its a
"lazy O2 sensor?" or is it something else?


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