TwinTurbo.NET: Nissan 300ZX forum - Hesitation/running rich problem
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Subject Hesitation/running rich problem
     
Posted by Yuengling on September 06, 2012 at 8:35 PM
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Message I a hesitation between 2K-5k rpm. Soon as I hit 5K it takes off like a rocket. I've read tons of info on hesitation problems. I've cleaned everything, checked all sensor connections. Found my right side egt runs about 100 degrees cooler than the left. Tested the o2's Left side tests ok. right side during the test the check engine light stays on for about 10 seconds then goes off for about 10. doesn't flash on/off. So, I figured I had a faulty o2 sensor. replcd it. same results with new o2. checked the wiring.. everything checks out ok. I'm stuck. Looking for some other options. Any advice??

     
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