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Hey dude, how's the air flow sensor doing? Been having some sort of air-fuel mix problem since i bought the car 3 years ago. Changed everything, O2 sensor, Air-flow sensors, fuel pump, filters, idle valve, vacuum hoses, etc, but the problem still persists. Now, my new mechanic claims the air-flow unit fitted to my car (different mechanic, a year ago) is the wrong one! New unit from S'pore around 1k. Any ideas? Who's ur mechanic?