I would check all of the following in this order starting with the simplest(assuming you have already checked your plugs and plug wires):
1. Power transistor
2. Crank angle sensor(CAS)
3. Coil pack
4. ECU
These are the only sensors in a dsm (assuming this is not an evo)which are related to spark. If any one of these are bad the car will not produce a spark.
Are you talking about taking a 4g63 out and putting a 420a in? If so, i don't understand, why at all, you'd do that.
yes. both engines are the 4g63. the turbo engines from the 1990-1994 is a 6 bolt 4g63 and the turbo engine from the 1995-1999 is a 7 bolt 4g63.
Sure Sure
VERY HARD AND VERY EXPENSIVE. I do not recommend. You would spend less money buying a talon or eclipse with the 4g63 engine!
I assume your are asking about spark plug wire order? from top to bottom on the coils it is 4123. cylinder 1 is closest to the timing belt 4 is the farthest. however 41 and 23 can be interchanged on the coil because the 4g63 runs in waste spark
yes it will
Yes, the same harness was used in the non turbo as well as the turbo, Unless you have the 1.8 liter or the 420a engine.
yes, great upgreade!
no, the transmission for the 4g63 is on the passenger side, the 420a is on the driver's side. you will have 5 speeds in reverse and 1 speed in forward if you try this even with a transmission adaptor.
yes, the 1g eclipses came w/ N/A 4G63's. I found this out the hard way! Check out wikipedia.org for more info.
The good old 4G63, or like me a 4g64/w 4g63 head. higher stroke 100mm vs. 88mm i believe.
yes it is