What are the reasons why a 7th-generation Accord won't start despite having fuel and electricity?

[AlyssaAnn]

There are several specific reasons why an Accord may fail to start: 1. Carbon buildup in the engine causing ignition difficulties: This is often accompanied by slight shaking at idle, which can be resolved by cleaning the throttle body and fuel injectors. 2. Weak spark plug ignition energy: Failure to replace spark plugs after their maintenance interval leads to severely reduced ignition energy, potentially causing misfires. 3. Insufficient fuel rail low pressure: Low fuel pressure in the low-pressure fuel system directly results in the engine requiring secondary ignition. Specific components to check include the fuel pressure regulator, fuel pump, fuel filter, and internal fuel lines. 4. Dead smart key battery: When the vehicle's smart key battery is depleted, the key's transmission power becomes very weak, making it difficult for the car's sensors to detect it, thus preventing push-button start from completing ignition. Solution: Smart keys usually come with a mechanical key that can be directly inserted into the keyhole for starting.