93 auto 240sx ROUGH IDLE

Post by **morbid** » Wed Dec 12, 2007 5:46 pm

I picked up my 93 auto coupe the other day and have noticed it idles rough while in park and neutral, but if I am stopped at a light in drive or am in reverse, it idles fine. What do you guys suggest?

MaximA32 · Post by **MaximA32** » Wed Dec 12, 2007 5:51 pm

Have you searched thoroughly prior to asking this? I can guarantee you will find something on this as i have personally answered this question at least 2 dozen times.

Post by **morbid** » Wed Dec 12, 2007 7:54 pm

Spark plugs? Distributor cap? Fuel filter? IAA valve? TPS? PCV valve?

These are all answers I have found. Anything else I should know?There is no smoke, just vibration from the engine shaking. I'm not sure if there is any power loss, because the car has been like this since I got it, but judging from my previous 97, I'm pretty sure there is no power loss.

What should I do first?

MaximA32 · Post by **MaximA32** » Thu Dec 13, 2007 7:01 am

Why not just check them all? Take a day and check them all. Hell, it won't even take an entire day, more along the lines of a couple hours.

Post by **morbid** » Thu Dec 13, 2007 6:13 pm

Is there anything that I didn't mention that I should also check while I'm in there?

93 auto 240sx ROUGH IDLE

93 auto 240sx ROUGH IDLE

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