I recently purchased a 1993 300zx for a 1000 I replaced the fuel filter new ngk platinum plugs and 1 spark plug coil and purchased 2 new fram air filters but don't know where they go it looks like under the head lights. After replacing the plugs and fuel filter and plug coil once the car warms up it wants to stall its self out when I come to a stop. Also whiles driving sometimes it feels like I'm being robed of power sometimes. The car has 140000 miles and I don't think the timing has ever been done so I think that might be part of the issue.