I have a 97 Disco 4.0 V8 that's cranking but not starting. I've scanned it and got the following codes:
P0102
P1187
P0300
P0306
P1314
P1313

I'm guessing misfiring is why its not starting. I don't know what I should be checking to find out what's causing the misfiring. Help.

 

Mis fires are caused by worn out spark plugs and wires.
So start with a tune up.
I assume you have checked the fuel pressure and have checked for spark?

 

Yes, I've checked fuel pressure and for spark. I changed the spark plugs and wires last spring. I didn't think they would go bad that quickly. I'll check the plugs and wires anyway.

 

If you used cheap plug wires you are lucky they lasted a year.
These trucks eat plug wires for lunch, you have to use good ones, Magnecore, STI, Kingsbourne seem to work best and hold up the longest,

 

The P0102 can indicate that MAF sensor is not plugged in, etc. Be sure it is seated firmly.

 

Got it running with new plugs. Cleaned the MAF sensor clips with contact cleaner. All codes are gone.