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My Bronco has been makin a vibrating noise by my feet. The Bronco isnt crapping out and there is no lose of power. I ran a scan tool on it and it gave me a code number 44. Does anybody know what this is and how i can fix it.
 

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CheeseBurger Milkshake!!
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fordfuelinjection.com

Your smog pump/system isn't working properly. Usually this won't cause any problems with engine performance or fuel economy.
 

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DTC 44 (KOER) - Right Thermactor Inoperative - The thermactor system injects air into the exhaust ports in the heads downstream from the valves. Air is supplied from the smog pump through tubing and the TAD/TAB valves to a copper pipe between the heads on the firewall side of the engine, and ultimately to the exhaust passages. If your smog pump is disabled, or your disconnected the tubing or blocked the thermactor holes in the back of the heads, or if the TAD/TAB valves are bad, you will get these codes
 
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