Kuthamanga kwachangu kumachitika pamene liwiro la injini likufika pa 3000 rpm.

Chodabwitsa: Makasitomala amafotokoza kuti magalimoto nthawi zambiri amakwera, ndipo nthawi iliyonse pakuchita opaleshoni, throttle (accelerator pedal) imakhala pafupifupi pamalo omwewo, ndipo nthawi yomweyo, kugwiritsa ntchito mafuta kumawonjezeka ndipo mphamvu imachepa.

Kusanthula:

1. Sensa ya throttle position ndi yolakwika.

2. Sensa ya malo a crankshaft ndi yolakwika ndipo chizindikirocho ndi chosakhazikika.

3, kulephera kwa dongosolo loyatsira, zomwe zimapangitsa kusowa kwa moto mwangozi.

4. Kulephera mwangozi kwa air flowmeter

Matenda:

1. Imbani nambala yolakwika, kusonyeza kuti chiŵerengero cha osakaniza ndi osauka.Zitha kuganiziridwa kuti cholakwikacho chikugwirizana ndi kutsegula kwa throttle.Pogwiritsa ntchito oscilloscope kuti azindikire throttle position sensor, ikuwonetsa kuti mawonekedwe ake amawonetsa kutsika pang'onopang'ono ndi kuwonjezeka kwa kutsegula kwa throttle, ndipo mawonekedwe ake ndi osalala komanso opanda burr, kusonyeza kuti throttle position sensor ndi yachibadwa.

2. Chifukwa cha vuto lina, mafuta amawonjezeka ndipo mphamvu imachepa.Mapiritsi a mpweya ndi mpweya wa mpweya anayesedwa, ndipo kuchuluka kwa mpweya wa mpweya kunali 4.8g / s pa liwiro lopanda ntchito, ndipo mphamvu yamagetsi ya mpweya wa oxygen inasonyeza za 0.8V.Kuti atsimikizire mtundu wa O2S, injiniyo idayamba kuyimitsa pa liwiro lalikulu itatha kutulutsa chubu cha vacuum pamitundu yambiri, ndipo chizindikiro cha O2S chidatsika kuchokera ku 0.8V mpaka 0.2V, kuwonetsa kuti zinali zachilendo.Komabe, panthawi yochita idling, mpweya umayenda umayenda pang'onopang'ono pa 4.8g / s.Pambuyo pochotsa pulagi ya mita yoyendetsa mpweya, kuyesa kunayambikanso, ndipo cholakwikacho chinasowa.Kuthetsa mavuto mutasintha mita yoyendera mpweya.

Chidule:

Pamene sensa ikuganiziridwa kuti ndi yolakwika, njira yotulutsira pulagi ya sensa (crankshaft position sensor singathe kumasulidwa, mwinamwake galimotoyo singayambe) ingagwiritsidwe ntchito poyesa.Pulagi ikatulutsidwa, kuwongolera kwa ECU kudzalowa pulogalamu yoyimilira ndikusinthidwa ndi zosungidwa kapena ma siginecha ena.Ngati cholakwikacho chimatha pambuyo pochotsa, zikutanthauza kuti cholakwikacho chikugwirizana ndi sensa.