Protege LX L4-1489cc 1.5L DOHC MFI (1998)
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Fuel Pressure Regulator: Pressure, Vacuum and Temperature Specifications
Key On Engine Off
1.5L
39 - 45 psi
When data link connector terminals "F/P" and "GND" are connected
via a jumper wire.
1.8L
40 - 45 psi
Pressure at Idle Speed with Vacuum Hose Connected
All
29 - 34 psi
Pressure at Idle Speed with Vacuum Hose Disconnected
All
40 - 45 psi
Fuel Pressure Hold
All
more than 21 psi
Pressure maintained after car has been turned off for 5 minutes.