Question

P2101 NISSAN 2007 versa 1.8 liter 2 codes p2101 and p2100 and p 0507 car idles but wont go more than 10 miles per hour, what should i replace first ? thanks a lot.

Answer 1

You shouldn't replaced any thing until you diagnose the problem. You should start by adjusting the Idle Air Volume.

Instruction to perform idle air volume procedure here: http://nissanhelp.com/diy/versa/projects/nissan_versa_idle_air_volume_learning.php