Does toyota highlander have fuel economy? - 2001 Toyota Highlander

Question edited for clarity add maker.
Question moved to model category.

Your question as written makes no sense. You made an earlier post 10 minutes before asking "How do check fuel pump is working".

Although badly written, (How do you check that the fuel pump is working?), I can answer that.

In the engine bay on the fuel rail there is a port that looks like a tyre stem called a Schrader Valve. You connect a fuel pressure gauge to it and test the fuel pressure when turning the engine over to start it. The pressure should be 44-50 PSI.

https://www.google.com/search?q=2006+Toyota+Highlander+Hybrid+test+fuel+pressure

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https://www.car-inform.com/highlander/

and

https://www.google.com/search?q=2005+toyota+highlander+fuel+pump+wiring+diagram

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2001 Toyota Highlander fuel pump relay Questions

I do not know if this vehicle has a torque converter lockup or not, but sounds like it. Does the transmission stop shaking when you go over 65? Some vehicles have a torque converter lockup, which means when the vehicle is traveling at a certain speed in high gear the torque converter "locks" and there is no slippage to the transmission resulting in better fuel economy. if the torque converter doesn't "unlock" when you slow down to say 45 then the engine will "lug" causing vibration. If this is the case you are not hurting anything by driving, just shift to 3 when it shakes then upshift under lighter load, or take it to a shop that replaces transmission sensors.

toyota suv fuses relays location are passenger compartment left kick panel.passenger compartment on left end of dash under hood engine compartment on driver side.

This model does not have an external fuel filter, there is a permanent fuel filter inside the gas tank that is not serviceable unless you want to remove the gas tank.

In the fuel tank.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/flavio_517b938f50183b92

Fuel type? Regular unleaded is what mine takes. 2005 Limited V6 Highlander. Good luck!

i would trace the fuel lines it should be before the fuel pump not for sure though

That code is specific to the Air-Fuel Ratio (A/F) Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

P1135 Trouble Area:
 Open or short in A/F sensor (bank 1, sensor 1)
 A/F sensor (bank 1, sensor 1) heater
 ECM __________________