03' Automatic Protege5 is missing a line from the brake master cylinder that feeds into the fire wall. Has been running with a code linked to the evap system, but was running fine. So to speak.. recently developed a hard brake and was thinking it was the booster. Now I'm wondering if the unknown line is part of the issue. Runs and idles fine till I press brake. Then begins to stall out.. anyone have any insight as to which line is missing.
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