How to solve the throttle delay issue in Hongqi H5?

[VonNorah]

Solutions for throttle delay in Hongqi H5: 1. If it's a fuel issue, the sluggish throttle response may be related to the fuel octane rating. Always use the same octane rating when refueling and avoid frequent changes; 2. If there's a fault in the intake system, inspect components such as the intake valve, intake pipes, air filter, and various hoses, and promptly clean any clogged parts. The Hongqi H5 is a model under the Hongqi brand, with body dimensions of 4945mm in length, 1845mm in width, and 1470mm in height, and a wheelbase of 2875mm. In terms of appearance, the Hongqi H5 largely follows the design of the Hongqi B-Concept concept car, featuring an inverted trapezoidal front grille connected to the headlights, with embedded vertical chrome trim strips.

[CorbinLynn]

I've been driving the Hongqi H5 for a while, and recently experienced severe throttle lag—it took two to three seconds after pressing the pedal before the car responded, making highway overtaking particularly risky. I suspected excessive carbon buildup in the throttle body, as I often drive in congested city traffic, and dust may have clogged the air passages, slowing engine response. A friend suggested getting it checked at the dealership, and sure enough, the technician cleaned the throttle body and throttle valve, also replacing the air filter, which resolved the issue. They recommended cleaning every 10,000 kilometers to prevent carbon buildup from affecting throttle response. Additionally, the throttle pedal sensor could age or malfunction, or the electronic system might develop bugs—if this happens, don’t delay, prioritize safety and get it repaired promptly. I also make sure to use high-quality fuel to minimize engine deposits.

[RiverLee]

I immediately became alert when encountering throttle delay. Once, during a red light start, the acceleration was extremely slow, almost causing a rear-end collision, so I quickly pulled over and turned off the engine. A self-check revealed that the throttle cable wasn't loose, possibly indicating an electronic throttle system failure, such as a control module software conflict or poor sensor contact. I went to the repair shop and had the mechanic use a diagnostic computer to read the ECU error codes, which showed a throttle position error. After resetting the program, it returned to normal. Driving safety is paramount, so don't ignore such issues. Develop the habit of gently pressing the throttle to test its response when starting up, and stop for inspection if anything seems off. Carbon deposit cleaning is crucial—clean the throttle body every six months to ensure smooth air intake. Proper maintenance can extend your car's lifespan.

[LaAnthony]

The throttle delay issue with my Hongqi H5 is actually quite simple: dirty throttle body, ECU needs resetting, or faulty sensors. Carbon buildup in the throttle body over time restricts airflow, causing slow engine response - cleaning it isn't difficult but requires professional tools. Outdated ECU software or corrupted data can also cause delay, and disconnecting the battery for a few minutes often effectively resets it. For sensors like the accelerator pedal position component, replace them if worn out and sending inaccurate signals. By systematically checking these factors, the problem can basically be solved, ensuring smooth and safe driving.