MX-5 Miata Mazdaspeed L4-1.8L DOHC Turbo (2004)
Brake Proportioning/Combination Valve: Testing and Inspection
PROPORTIONING BYPASS VALVE INSPECTION (WITHOUT ABS)
1. Connect the SSTs and the adapters to the brake pipes as shown in the figure.
2. Bleed the air from the brake system.
3. Measure the fluid pressure from the master cylinder and to the rear brakes.
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If not as specified, replace the valve component.
Specification