exhaust pressur
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the Exhaust Backpressure Sensor is one of the vital sensors needed in the engine control system that to the engine run correctly and efficiently. the tube just moves the sensor far away enough to put it in a convenient place,and also away from the heat of the exhaust manifold, or the epoxy in the computer board in the sensor would melt. one end of the tube connects to the manifold like you said, and the other end connects to the sensor, and the tube snakes around the front of the engine block, almost dead center in front of the HPOP reservoir, and an inch or two behind the serpentine belt.
Exhaust Back Pressure Regulator Valve Tube
(Ford) F4TZ-9D477-A
Exhaust Back Pressure Regulator Valve Tube
(Ford) F4TZ-9D477-A
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