Question about 2002 Nissan Sentra

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2002 Nissan sentra engine light on and rpm needle bounces

I have a 2002 nissan sentra with only 31,000 miles on it. My engine light turns on and off frequently (not blinking) I have noticed the rpm is revving on its own especially when I first start it, and it bounces back and forth while accelerating and maintaining a consistent speed. Any ideas?

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I have the same car and had the check engine light come on for me as well.

Mine was because I put an after market cold air intake system and I took care of my filter by cleaning and replacing it when needed. If you have this or an a filter like a K&M air filter that has a bit of oil on it will coat on the O2 sensors and will eventually interfere with your O2 sensors giving your computer the wrong information like mine did and my revs went up as well. So I had to clean my 02 sensors and and reset my computer it fixes the problem or replacing the 02 sensors will of course work too but not needed. About 3-4 years then the check engine light came back on again and I went back to my normal stocked air intake and a regular filter and no more problems. I left my exhaust header on and I still have lots of power and fuel milage, so the cold air intake didn't icrease much power or fule milage... just a tad.

Hope this helps you a little.

The other J!

Posted on Aug 03, 2009

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Hello and thank you for using FixYa!

Most like you will need to have the code checked. It could be a throttle chamber issue. You need to have the code read by a scanner to see what code you have so the proper repair can be made.

Thanks Jay!

Posted on Jul 30, 2009

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