Nissan Repair: 1993 nissan maxima twin cam 24 valve engine, competent mechanic, valve seals

Question
My 93 maxima hesitates to start could it be my fuel injectors or my fuel rail system it also smokes at first then it quits

Answer
Hi Timothy

The smoking, when just starting, is an indication of valve seals failing. This could also be the reason why it is hard to start.

If the smoking is not too bad, try an additive called AT205, or an additive that conditions the rubber seals in the car. That might do the trick. If not, then take it to a competent mechanic to replace the valve seals

Hope this helps -
aloha
calvin