Replaced plugs/ wires, still slightly missing
Had coil pack tested. range was little less than 6
Brakes are soft
Used B-12 to treat bad gas
Engine shakes, replaced one motor mount on top/passenger side.
Nissan Technical Advisor 7/19/2011Get the engine scanned and post the codes here. The problem could be that the idle control valve is clogged of the TPS sensor or its circuit is defective.