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Was wondering If we have any computer code diagnose wiz's out here that could help me track down a problem with my brothers 1995 F-150 302 , 5 speed. I did a scan on the trucks computer today and it came up with some codes, that I havent a clue on with the 1st place to start looking on the engine for repairs. Maybe someone can help? here are the codes
Engine Off Key on
Code#:332 = Insufficient EGR Flow Detected.
Engine On Key On
Code#:313 = Thermactor Air System problem - Air flow not bypassed(vented to atmosphere
Code#:538 = Insufficient RPM change during dynamic Response test.
Truck has 115,000 miles on the ticker and has not had any major overhaul done on it. It runs well right now except for the fact that the check engine light comes on and off on it here lately. So with those facts any idea where i can begin to look ? Charcoal cansiter, air pump,O2 sensors,egr valve, Sensors????? The truck has been taken very well care of, and has had all maintence performed at the correct mileage. Any profesional suggestions would be greatly appreciated. Thankl you