For 1990-2009 cars

Checks | Actions
--- | ---
DEFINITION: Engine cranks fine but does not start immediately.

• | Engine coolant temperature (ECT) sensor

• | Manifold absolute pressure (MAP) sensor

• | Throttle position (TP) sensor

• | Intake air temperature (IAT) sensor

Check for normal scan tool readings.

Fuel System | Check fuel system and fuel quality.
Idle Air Control (IAC) | Check for carboned-up valve.
Wires | Check for arcing wires.
Engine | Check for mechanical problems - e.g. low compression, sticking lifters, worn valve train.
Intake Manifold | Check for carbon deposits.
Spark Plugs | Check for worn spark plugs.