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2000 Nissan Xterra SE 4dr 2WD V6 Manual

2000 Nissan Xterra
Trim Info:
Rear Wheel Drive, 4 Door, 2WD Sport Utility
17 mpg city / 19 mpg hwy
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June 15, 2010, 9:37 pm

AutomotiveForums M

Question: Rough idle and hard starting

I just gave my Xterra a complete tune-up and it still idles a little rough and starts hard 90% of the time. When it starts, it smells lean and it idles rough 90% after a start up. The A/C also doesn't work and I hope they are related. There is a wire connector that is hanging from behind the drivers side head light and can't tell where it would connect to. It a 3 prong female end. Lite purple in color. Tested the codes and it came up with a PO300. One code with many different ideas of the problem. Is it a fuel pressure regulator, timing off or just a bad sensor? The A/C I'm sure is a totally separate issue. Can you help me? Thanks so much.


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