Parts for your 2010 Toyota Wish-Fuel pump

2010 Toyota Wish fuel pump — what it does and when to replace it

Yes, the 2010 Toyota Wish is fitted with a fuel pump. Technical documentation for the ZGE20/21/25 series (2ZR-FAE and 3ZR-FAE Valvematic engines) shows an in-tank electric fuel pump integrated into the “fuel suction plate sub-assembly” (Toyota EPC Group 77, part prefix 77020). Toyota’s repair manual and New Car Features publications for these models describe an electronically controlled, returnless EFI system that relies on this in-tank pump to maintain the correct rail pressure. The assembly is typically Denso-built and accessed via a service cover under the rear seat area.

On a 2010 Wish, the fuel pump’s job is straightforward: draw petrol from the tank, push it through the in-tank filter/strainer, and supply steady pressure to the injectors so the Valvematic engine runs smoothly. When it’s healthy, starts are crisp, idle is clean, and there’s no sag under load. When it’s tired, the car can get a bit grumpy.

There’s no routine replacement interval for the pump in Toyota’s schedules