Engine Does Not Start Or Is Difficult To Start When Cold

Check fuel quality.
Check fuel pump relay and fuel pump.
Check auxiliary air intake system.
Check fuel system acceleration enrichment circuits.
Check cold-start valve.
Check MAF sensor.
Check sensor plate rest position and idle circuit.
Check fuel system differential and residual pressures.
Check fuel injection volume.
Check engine coolant temperature sensor.
Check ignition timing, spark plugs, distributor, secondary ignition wiring and coil.
Check Hall Effect sensor.
Check ignition coil power output stage.