What is the purpose of the fuel pressure regulator in maintaining a constant fuel pressure to the injectors for the Honda CRX?

The fuel pressure regulator maintains a constant fuel pressure to the injectors. The spring chamber of the pressure regulator is connected to the intake manifold to constantly maintain the fuel pressure at 36 psi (248 kpa) higher than the pressure in the manifold. If the difference between the fuel line and manifold exceeds 3El psi (248 kpa), this leads to the diaphragm being pushed upwards and ultimately excess supply is sent back through a return line into the tank.

Genuine Honda CRX Fuel Pressure Regulator

Fuel Tank Pressure Regulator

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5 Fuel Pressure Regulators found

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Honda CRX Regulator Assembly, Pressure (Denso)
Part Number: 16740-PE7-661
$94.62 MSRP: $133.66
You Save: $39.04 (30%)
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Product Specifications
- Replaced by: 16740-PE7-662
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1985 Honda CRX | 2 Door SI | KA 5MT, KL 5MT
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Honda CRX Regulator Assembly, Pressure (Denso)
Part Number: 16740-PM6-003
Product Specifications
- Replaced by: 16740-PG7-623
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1988-1991 Honda CRX | 2 Door HF, 2 Door SI | KA 5MT, KH 5MT, KL 5MT
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Honda CRX Regulator Assembly, Pressure (Denso)
Part Number: 16740-PE7-662
Product Specifications
- Other Name: Fuel Pressure Regulator
- Replaces: 16740-PE7-661, 16740-PE7-660
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1985-1987 Honda CRX | 2 Door SI | KA 5MT, KL 5MT
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Honda CRX Regulator Assembly, Pressure
Part Number: 16740-PM5-A01
Product Specifications
- Other Name: Fuel Pressure Regulator
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1988-1991 Honda CRX | 2 Door DX | KA 4AT, KA 5MT, KL 4AT, KL 5MT
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Honda CRX Regulator Assembly, Pressure (Kikaki)
Part Number: 16740-PG7-623
Product Specifications
- Other Name: Fuel Pressure Regulator
- Replaces: 16740-PM6-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1988-1991 Honda CRX | 2 Door HF, 2 Door SI | KA 5MT, KH 5MT, KL 5MT

About Honda CRX Fuel Pressure Regulator

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Honda CRX Fuel Pressure Regulator Parts Questions & Experts Answers

Regulator Assembly, Pressure (Denso)
16740-PE7-661
Q: What is the purpose of the fuel pressure regulator in maintaining a constant fuel pressure to the injectors for the Honda CRX?
A: The fuel pressure regulator maintains a constant fuel pressure to the injectors. The spring chamber of the pressure regulator is connected to the intake manifold to constantly maintain the fuel pressure at 36 psi (248 kpa) higher than the pressure in the manifold. If the difference between the fuel line and manifold exceeds 3El psi (248 kpa), this leads to the diaphragm being pushed upwards and ultimately excess supply is sent back through a return line into the tank.