Have a 92 si w/d16z6. The car will start perfectly when cold. But, after you run it for a while, cool off a bit, not cold, it will take 10-15sec of cranking before it will start up again. If I restart right away no problem.

I've replace the fuel pump, fuel filter, plugs and pcv valve.

What else can it be? Coil and or the ignitor?

Thanks in advance!