What causes throttle delay and insufficient power when the Odyssey's air conditioning is turned on?

[StJasmine]

The reasons for insufficient power in the Odyssey when the air conditioning is turned on are as follows: Vehicle malfunction: Generally, it is due to a fault in the air conditioning system. During summer, the air conditioning is used daily, so it is likely a problem with the thermostat or clutch. Spark plug malfunction: Spark plugs play a significant role, and different materials can yield varying results. Replacing them with high-quality spark plugs not only extends their lifespan but also enhances power output. Engine oil issue: When there is sufficient engine oil, it provides excellent lubrication between the car's components. Car owners should regularly check the oil level and replenish it promptly if it is found to be low to prevent wear and tear on car parts.

[Gollum]

As a car owner, I've also encountered this issue while driving the Odyssey. After turning on the AC, the throttle response becomes slower, and there's noticeably less power. This happens because the AC compressor requires additional power from the engine, increasing the engine load. The engine, which is already balancing RPM and power output, has to divert some of its power to drive the compressor, resulting in less energy being delivered to the wheels and causing delayed throttle response. This is especially noticeable when going uphill or accelerating, and it's quite normal—many cars exhibit similar behavior. If the car is older, with more carbon buildup or an inefficient ignition system, the problem can be worse. It's recommended to perform regular maintenance, check the spark plugs and intake system, and ensure the engine runs smoothly to minimize power loss when using the AC.

[DeIsabelle]

I often help friends fix their cars, and this issue is quite common. The main reason for throttle delay after turning on the AC is that once the AC compressor starts, the engine is forced to work harder, naturally reducing power output. If your car already has limited power, suddenly adding the compressor load is like dragging a sandbag—it struggles to accelerate, causing throttle delay. Another factor is insufficient fuel system performance, such as an aging fuel pump or dirty fuel injectors. When the AC is on, fuel demand increases but the system can't keep up. Additionally, if the battery or alternator is aging, the high power consumption of the electric AC indirectly affects engine performance. Don’t overlook simple things, like a dirty cabin air filter increasing system pressure. It’s recommended to check if the compressor clutch is functioning properly and avoid stomping on the throttle when the AC is at full load.

[VanRiley]

I've been driving an Odyssey for years, and this issue is really annoying. The key to insufficient power when the AC is on lies in the additional load the AC places on the engine, naturally causing a delayed throttle response. The engine is particularly sensitive at low speeds; once the compressor kicks in, it saps some horsepower, leading to acceleration lag. Additionally, if there's carbon buildup in the intake system or a clogged air filter, less air gets in, resulting in poor combustion, which worsens when the AC is on. Another possibility is an unresponsive engine control computer, where the AC signal interferes with throttle commands—common in older models. To improve, get into the habit of not accelerating hard right after turning on the AC. Regularly clean carbon deposits and check the mass airflow sensor; minor fixes can alleviate major issues.