| looks like it needs a full preventative maintenance on it... go over everything, check all connectors, clean them and make sure they have good contact and the clips are intact. check the MAF and air filter (did you replace the fuel filter?) connectors to the CAS, PTU & TPS are practically important. once you've done all that you can do checks on the coil packs and injectors (and plugs). you can also run an ecu diagnostic for errors. however I'd be doing a vac/boost leak test first as well. that should narrow it down.... and you can go from there.. conzult/nisture/ecutalk/DR300zx...etc might be of help..(you will need a connector/adaptor). good luck
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