Troubleshooting!

[RETed]

No, clutch switch will just prevent the starter from engaging.

1) Scan for error codes - this is easy and quick to do.

2) Once you eliminate the ECU and error codes, start with the basics - fuel and spark.

It's easiest to check spark...
Having a friend really helps here.
Unplug the spark plug wire from the spark plug end and put the boot near a known, good ground point - I pop the strut tower covers and use the studs there for convenience.
Crank the motor - check for spark on all 4 leads.
Once you check spark, if you get sparks, you just eliminate the spark side of the equation.

Move on to fuel...
Check fuel pressure...
Quick&dirty test is to pinch the fuel SUPPLY line - look for the fuel filter on the firewall on the driver's side.
Key ON and crank - the fuel line should get pretty stiff.
If you can pinch the line enough to block it totally, there's something wrong with the fuel pump or the power to the fuel pump.
If you get fuel pressure, then you need to check fuel injectors.
This where it gets messy - you need to remove all the stuff on top and get the fuel injectors out of their holes.
Wire tie or use pieces of wire to secure the primary fuel injectors to the fuel rails.
If you don't do this, the fuel injectors will pop out of the holes from the fuel pressure and leak gasoline all over the place!
Again, have a friend handy...
Crank and watch the tips of the fuel injectors to see if there is fuel.

If you get fuel and spark, it's most likely ignition timing...
You'll need an inductive timing gun to spec out your ignition timing.


-Ted