Follow-Ups to Answer from Expert Von Sudderth

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chris wrote at 2007-04-08 03:31:47
I own the same car and experienced the same problem and found out it was the EGR valve was carboned and not shutting properly.

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kv wrote at 2007-07-12 22:48:01
Check your intake manifold and exhaust manifold gasket. This problem is very common on the first and second generation Altimas!

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steve wrote at 2008-12-22 01:01:21
Most likely the intake manifold gasket...very common defect.  After the repair the drive cycle will need to be reset and let me tell you it is a ROUGH one.  Involves major speed changes, AC on and off, OD on and off all in a crazy order and the do it AGAIN.  Print out the drive cycle and good luck

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