Operation CHARM: Car repair manuals for everyone.
Home >> Mazda >> 1994 >> MX-3 V6-1844cc 1.8L DOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Fuel Pressure Regulator Control Inspection
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Fuel Pressure Regulator Control Inspection

View: Pressure Regulator Control System:




SYSTEM OVERVIEW


View: Pressure Regulator:





SYSTEM INSPECTION
1. Start the engine and run it at idle.
2. Disconnect the vacuum hose from the pressure regulator. Verify that vacuum is felt.


View: Grounding The Pressure Regulator Control Solenoid Valve:





3. Ground the pressure regulator control (PRC) solenoid valve terminal A with a jumper wire. Verify that NO vacuum is felt.
4. If vacuum exists, check the PRC solenoid valve.

pro multis · About Operation CHARM