refuerzob

Hey everyone,

I've got an sr swapped S13 with which appears to be the stock bmc and brake booster. A couple of months back (around November), I've noticed that after stalling the engine, the brake pedal would be very stiff and will not return to its resting position. Recently, I've done a brake fluid flush and it appears that the stiff brake pedal issue has vanished (after stalling the engine), but the brake pedal still won't return. Anyone have an idea on how I should go on about troubleshooting this? Could there be a possibility that there's still air in the lines or the bmc or booster is going? TIA!