Nissan Repair: Nissan Altima Idle Problem, nissan altima, hi adam


Question
Hi Calvin,
I have a 1997 Nissan Altima, 4 cyl, 2.4L engine. Mileage:235,000
Great car, I've had no issues with it the nearly 2 years I've owned it until recently it began to idle rough suddenly. And the check engine light came on when it began. However it runs great at highway speeds and has plenty of power. It's only when I come to a stop when it idles rough.
I had replaced all the spark plugs but it made no difference. Any ideas what it could be? I'd greatly appreciate any advice/ suggestions.

Answer
Hi Adam -

First of all we need to figure out why the check engine light is on. You can take it to any Autozone, I think they will pull the code for free. Once you get the code, it will tell you what is wrong. This is the best thing to do rather than guess, as your car has several sensors, and any one of them could cause the car to not run properly.

If you get the code (called OBD, it will be PO _ _ _), I can tell you what the problem is -

Hope this helps -
aloha
calvin