Why does my car feel sluggish, It feels like doesn't want to go. on 2002 Toyota RAV4

When I drive everyday.

Asked by for the 2002 Toyota RAV4
this could be several reasons. is the ck eng light on?
No check engine doesn't go on, I've been told I need a fuel injection, Is that right.
could be not sure do u trust your mech?
The guy told me at Jiffy Lube.
Yes my check engine light is on. It has been on for almost a year
#1 don't believe jiffy lube get codes scanned at auto zone for free and post so we can adv