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Old 03-31-2020, 03:00 PM
jcg0324 jcg0324 is offline
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2011 Altima Sedan
2011 Altima 2.5s
 
Join Date: Jan 2016
Location: Philadelphia
Posts: 40
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A malfunctioning or misadjusted park / neutral switch can cause a rough idle or stalling. The computer will not command the proper air-fuel mixture if the gear selection is in drive or reverse when the computer thinks that the gear selector is still in park or neutral. The idle speed is affected by the park/neutral switch and the engine may idle rough or even stall.
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