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the first thing I would check is, fuel, spark, coil, ignition module
Check engine compression Check engine timing
Basic first step diagnostics: Check for spark, check for gas then figure out (usually by tracing backwards) why you are not getting it (spark/gas).
Could be many things. Mostly id check the coils first as they are what cause spark.
check all the fuses.
check cold start sensor or cold start valve is the same dif. name, also check for the coil pack could be in short good luck
how does it stall if it wont start?
1989 ford F250 Fuel Problems, It cranks but wont start
You are missing fuel or spark.
check the fuel lines.. fuel relay, fuses, and if all else fails the pump.
Check for trouble codes. Possible cam or crank sensor.
rpm went to zero cranks but wont start