Switch power to your fuel pump and injection circuit with the Standard Ignition Fuel Injection Relay / Fuel Pump Relay (RY-503). This electrical relay drops in as a direct-fit replacement for the listed applications: the 1993-1997 Volvo 850, 1998-1999 Volvo S70, 1998-2007 Volvo V70, 2000-2007 Volvo S40, and 2000-2004 Volvo V40.
A fuel pump/injection relay uses a small control-circuit signal to open and close the higher-current circuit that feeds the fuel pump and fuel-injection system, so the pump primes and runs when the key is switched on and the engine is running.
- Electrical switching: handles the pump/injection power circuit on a low-current control input.
- Direct-fit replacement: installs in place of the original relay on the listed Volvo applications.
- Listed under two names: cataloged as both a Fuel Injection Relay and a Fuel Pump Relay.
Signs this relay may be the cause include a no-start, a fuel pump that will not prime, or intermittent stalling; if a failed relay is the cause, replacing it with RY-503 restores power to that switched circuit. Diagnose the cause before replacing, since these symptoms can have other sources.
Manufacturer part number RY-503.
