Ignition coil problems?

jeudi 11 décembre 2014

Hey guys I need somebody help! So I recently changed the spark plugs and the wires are in great shape as well, and I changed my original stock mass air flow sensor and changed it to the JET Performance mass air flow sensor. I never touched the ignition coils before and I'm pretty sure I have bad ignition coils because my car doesn't have the power it had before, also when I'm accelerating the RPM's drop a bit the pick back up. If I'm going on a hill, the car doesn't go as fast as before it doesn't increase in power going up a hill. Is it bad ignition coils?




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