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Codes PO108,PO 308 . As you know 108 is high circuit and the 308 is m8
jeep grand cherokee 4.7 liter. Have replaced Throttle position sensor, the MAT sensor, the crankshaft and Camshaft position sensor. also replaced the coil pack for number 8 and replaced alll plugs. My question is is there any change in things when I disconnect the MAP sensor from when it is installed. I am getting no change. Also when I am at idle in the park position and step on accelorater petal to the floor to 4000 rpm it is a strong indication of noticable misfire The misfire is acting like same sequence each few moments pop pop bu8mp bump bump
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