2328022010 Toyota REGULATOR ASSY, FUEL PRESSURE, Price: 42.34$, Weight: 0.038kg
| Make | Number | Name | Availability | Weight, kg | Ship in, Days | Price |
|---|---|---|---|---|---|---|
Toyota |
2328022010 |
REGULATOR ASSY, FUEL PRESSURE |
126 |
0.038 |
2-3 |
42.34$ |
Originals
| Make | Number | Name | Availability | Weight, kg | Processing, days | Price | |
|---|---|---|---|---|---|---|---|
| Toyota |
REGULATOR ASSY, FUEL PRESSURE
|
77 |
0.044
|
|
50.81$
|
Fuel Pressure Control Assembly for Toyota Engines
This precision regulator keeps the fuel rail at the correct pressure so Toyota EFI systems run clean, strong, and efficient. It balances delivery from the pump to the injectors, preventing lean hesitation or rich flooding. Stable pressure means smooth idle, crisp throttle response, lower emissions, and longer injector life.
How it works ⚙️
Inside is a spring-loaded diaphragm linked to a valve. A vacuum hose references intake manifold pressure. At idle (high vacuum) it lowers rail pressure; under load (low vacuum) it raises it. Excess fuel is routed back via the return line. Sealed O-rings prevent leaks. Typical setpoint is about 3 bar (≈43.5 psi), tuned to Toyota maps.
Why you need it
Correct fuel pressure is critical for accurate injector pulse, cold starts, and fuel economy. It protects the pump from overwork and keeps combustion consistent across temperatures and altitudes.
When it fails ❗
Stuck closed: high pressure, rich mix, black smoke, fouled plugs, fuel smell. Stuck open/weak spring: low pressure, hard start, stalling, lean misfire. Torn diaphragm: raw fuel in vacuum line, rough idle, poor MPG. Check engine light may show P0171/P0172 or fuel rail pressure codes.
Tech tips
Use OEM-grade part, inspect/replace the vacuum hose, lubricate new O-rings, align ports correctly, and prime the system after install. Fits many Toyota return-style gasoline systems (I4/V6). Ethanol-compatible materials for long service life.