This 2007 Toyota Rav4 V6 can still leave most cars in the dust, even at 427k MILES!

However it is losing power under medium load and setting a P0171 - Bank 1 LEAN code.
Parts Cannon has been fired a bit: plugs, coils, MAF.

Let's follow the logical approach and pinpoint the issue with this little sleeper.

THINKTOOL PROS:
https://www.amazon.com/dp/B08SWH2KP4?...
ON SALE NOW................GET ONE!

SUR&R MASTER FUEL PRESSURE TEST KIT:
https://www.amazon.com/dp/B004IJOLPE?...

OTC FUEL INJECTOR PULSER:
https://www.amazon.com/dp/B0002SR5OO?...

Enjoy!