possible misfire or just needs good tune up?

1993 NISSAN SENTRA
149,000 MILES
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STONEZB
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Hello,
I am looking at a 1993 Nissan Sentra SE 1.6L with 149K miles.
I test drove her yesterday but she was idling real rough. Feels like its missing on a cylinder. Weird part is after 2k rpms it smooths out and stays smooth all the way up. I dont want to purchase this if its going to be a big issue. Vaccum leak? good tune up? No CEL by the way.
Jun 5, 2012 at 2:26 PM
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KHLOW2008
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Most probably the idling speed is too low and that is usually due to a dirty idle control air passages. Cleaning the throttle body and IAC should solve the problem.
Jun 5, 2012 at 2:29 PM
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STONEZB
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Thanks for the quick reply. donations added
Jun 5, 2012 at 2:36 PM
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KHLOW2008
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You're welcome and thank you for the donation.

Thank you for using 2carpros and have a nice day.
Jun 5, 2012 at 3:06 PM