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Throttle valve, the detail that is present on all engines. Its task is to restrict the flow of air under our needs. Want vigorous drive — hit the gas pedal harder. The gas pedal, she pedal acceleration connected rigidly lock with the turning mechanism of the throttle. Sometimes a rope is used instead of the electronic control. But I have not seen in Honda Civic this control.

the Throttle and namely its footprint is the same for all Honda engines. You can use the throttle as the engine D15 and engines B18C, K20 or F22. Skunk2, Edelbrock and Wilson, companies that have established themselves as sellers of aftermarket parts, the diameters are different but most often on the D-series of engines are put 65 and 70mm. Stock size throttle D series 56mm.
In fact, the structure of the throttle easy, swivel ear attached to the spring that returns the throttle valve is fixed to the pin in the closed position. On the other hand to the pin fixed the TPS sensor — which monitors the throttle position from 0 to 100%, although it opens from a vertical to a horizontal position. The item itself inside the body of the throttle shutoff called stream — a butterfly. Absolute pressure sensor MAP is also connected to the throttle, but the channel connected to her, closer to the intake manifold of the engine of Honda Civic, it is necessary for measuring pressure vopschem in the collector.
A suction channel for idle channel overlaps the adjusting screws in the wide slot screwdriver. The second element responsible for idle and the throttle valve is closed, it is a lock nut which blocking move the rotary mechanism, the adjustment is made with 8mm key.

Device throttle adjusting screw idle

Device throttle adjustment screws idle speed


The most important parameter is the size of the duct at the throttle for each throttle models, this value is different, here is a list of some of them, diameter in mm.

the the the the the the the the the the the the the the the the the the the the the the the the the the the the the
engine ModelDiameter (size) mm
D14A3 56
D14A4 56
d15b7 56
d15Z6 56
d16a6 55
d16y7 56
d16y8 56
d16z6 56
ZC 55
d16a1 55
d16a8 55
B18C (JDM) 62
b18c1 60
b18c5 62
b18a 58
b18b 60
b16a SiR 58
b16a Sir2 60
b16a2 60
b16a3 60
b20b 60
b20z 60
h22a 60
h22a 62
h23a 60
f20c 62
f22 60
f23 60

Than larger the diameter of the throttle channel, the lower the resistance will act on the air flowing into the engine. Also it is wise to keep the inside surface of the throttle clean and in a polished form.

Pimping throttle, big and beautiful. Not bad huh?

souped up the throttle, big and beautiful. Not bad huh?

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Данная статья актуальна для автомобилей Honda выпуска 1992-2000 годов, таких как Civic EJ9, Civic EK3, CIVIC EK2, CIVIC EK4 и CIVIC FERIO (частично). Информация будет актуальна для владельцев Honda Integra в кузовах DB6, DC1, с моторами ZC, D15B, D16A.

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EJ9 и EK3 — записки инженера о Honda Civic 1998. 2010 – 2019 . Вся информация приводится для ознакомления, автор не несет ответственности за вред полученный в результате применения материалов сайта, находясь на сайте вы подтверждаете своё согласие с этим. Сделано Хондоводом для Хондоводов. Автор: Илья Серб Все изображения имеют авторство Карта сайта Honda Civic, всем VTEC!

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