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1979-1993 & 94 Conv [Subscribe to Daily Digest] |
Watch the boost gauge. Does the boost drop or does the engine stumble? If the boost drops you are experiencing engine knock and the apc is doing what it is supposed to do[ which has nothing to do with the overboost switch]. If you are seeing a stumble it is an ignition miss and you probably need new wires and plugs. Also check the torque of the bolt holding the knock sensor to the block it should be 10 ft lb. No more.
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