Symptom: a 2002 of 3. OL Honda Arco car is equipped with automatic transmission of the police car, the recent task in the need for high-speed driving, but only to open to 160km / h, and fuel consumption of 24L / 100km. The car to high-speed power shortage repair.
    Fault diagnosis: the car only travel 20,000 km, usually normal maintenance, the performance is good. Recently as the head of the fleet of the road car, only to find in the straight on the highway can be opened to 160km / h. And the same type of 3. OL automatic transmission Arco car in the straight highway can be opened to 195 ~ 200km / h.
    The speed of the vehicle at 140km / h when the engine speed up to 4500r / min, and when the speed rises again, the engine speed decreases, when the speed reaches its limit of 160km / h, the speed down to 3800r / min, and stable here The
    First, for routine detection: no fault code, all data streams are within the normal range. When the original launch detection, normal oil pressure. Detection of the speed of 160km / h when the oil pressure, but also normal, and even artificially increase the oil pressure (caught back to the tubing), the speed can only reach 160km / h. In the lift on the measured speed, up to 240km / h, the engine speed 5800 ~ 5900r / min, with the other 3. OL Arco de the same. Although not detected the problem, but still gradually changed the ignition coil, high voltage lines, injectors and transmissions, etc., to do the road test, as usual.
    Failure reasons and exclusion methods: the car for the road car, the installation of large luxury lights and loudspeakers. The windward area of ​​the lights up to 0.28m², and angular, mounted near the front windshield, increased the windward area of ​​the vehicle increased the drag coefficient, resulting in high speed when there is a greater power consumption. Remove the lights and amplifiers after the test, the speed up to 195km / h. Replacement of the wind area is smaller, streamline better lights and loudspeakers, and installed in the roof of the central, on the highway test, speed up to 186km / h.