Diesel Injector Roj Injector 0445120053 Bosch rau txiv neej Truck Diesel Cav

Muaj ob peb txoj hauv kev los xyuas qhov kev ua haujlwm ntawm lub injector. Cia peb teev lawv nyob rau hauv kev txiav txim nrog cov ncauj lus kom ntxaws qhia txog algorithm ntawm kev ua.

1. Kev tshuaj xyuas los ntawm kev ntsuas kev tiv thaiv
Koj tuaj yeem tshawb xyuas cov injectors yam tsis tau tshem tawm siv lub multimeter. Txhawm rau pib, xyuas seb lub injectors twg raug ntsia rau ntawm koj lub tsheb - siab lossis qis impedance (hluav taws xob tsis kam). Cov ntaub ntawv no yuav xav tau los ua qhov kev kuaj mob kom raug. Txhawm rau txheeb xyuas cov injectors nrog lub ntsuas ntsuas yam tsis tau tshem tawm ntawm lub tshuab hluav taws xob sab hauv, koj yuav tsum ua raws li cov phiaj xwm hauv qab no:

2. Ntsuas qhov tsis kam ntawm injector winding
(1) tshem tawm cov xaim hluav taws xob siab los ntawm cov tshuaj txhaj tshuaj;
teem lub multimeter mus rau hom ntsuas rwb thaiv tsev tsis kam (ohmmeter) nyob rau hauv thaj tsam ntawm 0 mus rau 200 ohms (nyob ntawm seb qhov kev ntsuas ntawm lub cuab yeej, qhov txwv sab sauv yuav txawv, qhov tseem ceeb tshaj plaws, yog li ntawd lub ohmmeter tuaj yeem qhia tus nqi tsis kam ntawm ntau kaum ohms);
(2) tua hluav taws thiab tshem tawm qhov tsis zoo ntawm lub roj teeb;
disconnect tus hluav taws xob connector ntawm lub injector raug kuaj (feem ntau, rau qhov no, lub mounting clip nyob rau hauv lub block lub cev yog snapped);
txuas cov kev xeem coj ntawm lub tester mus rau lub injector coj thiab ntsuas.
High impedance injectors muaj rwb thaiv tsev tsis pub dhau 11…17 Ohm, thiab qis impedance - 2…5 Ohm.

Yog hais tias tus nqi ntawm kev ntsuas rwb thaiv tsev tsis zoo sib txawv ntawm tus nqi teev, qhov no qhia tau hais tias lub injector yog faulty. Yog li ntawd, lub nozzle yuav tsum tau dismantled thiab yuav tsum tau ua kom paub meej kev kuaj mob.

Nco ntsoov tias thaum kuaj cov injectors nrog lub multimeter, koj yuav tsum kuaj xyuas txhua yam khoom siv ib zaug! Yog li koj tuaj yeem tshawb xyuas qhov twg lub injector tsis ua haujlwm.
Nws yog ib qho tseem ceeb kom paub tias qhov voltage rau cov tshuaj txhaj tshuaj los ntawm ECU yog muab rau hauv daim ntawv mem tes, tsis yog ib qho tas li. Yog li ntawd, nws raug pom zoo kom tsis tsuas yog ntsuas qhov kev tiv thaiv nrog lub ohmmeter, tab sis kuj yuav tsum coj ib qho oscillogram ntawm lub zog hloov hluav taws xob siv lub oscilloscope, yog li koj tuaj yeem pom tias qhov hluav taws xob siab tshaj nws yuav siv li cas. Tus tester yuav qhia koj tsuas yog qhov nruab nrab qhov tseem ceeb.