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Q:

Car gets up to 40 mph then slows down to 25 mph on 2001 Nissan Sentra

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
The car will get up to 40 mph then will slow back down to 25 mph. Changed out wires, plugs, distribiture, cleand fuel injectors.
Bones70461@yahoo.com
(1) Answer
If is hard to accel up to that speed and drops quickly then may be restricted exhaust possibly the cat conv. Have a shop check it out. Maybe cam timing is off.