rusefi_documentation/Mazda-PRC-Valve.md

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# Mazda PRC Valve
2023-01-02 11:22:23 -08:00
Some Mazda engines have a solenoid valve on the vacuum line that goes to the fuel rail.
This is used to raise the fuel pressure on a hot restart and avoid fuel vapor in the fuel rail.
This valve is not really needed with rusEFI and can be removed, in it's place a longer than normal "prime duration" should be set in the "fuel pump" dialogue. (suggest 4-6 seconds).
Engines known to have this valve:
2023-01-02 11:22:23 -08:00
- MX5, 323 and protege B series