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Tremurat la demaraj


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Salut,

 

Am o problema la un E46 318i 1998 cu ASC. Probabil are legatura cu faptul ca azi a plouat foarte tare si posibil sa fi facut scurt la vreun senzor.

La scurt timp dupa ce pornesc motorul si o turez putin se aprinde martorul ASC (cel de ABS ramane stins). De asemenea in timp ce o accelerez are intervale de 1-2 secunde in care tremura, asta se intampla destul de neregulat si in orice treapta, atat in mers cat si la relanti. Gen accelerez constant de la 2000 la 4000 si tremura la 2500 apoi merge lin apoi iar tremura la 3500 etc.

Am vazut pe INPA ca imi da eroare la modulul ASC, anume: "146 - Can bus error".

 

Link-ul catre pdf-ul de aici nu mai e bun 33945-coduri-de-eroare-e46/

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Revin cu niste updateuri pt cei care se confrunta cu aceeasi problema. Ma gandeam ca poate totusi a prins ceva mizerie din benzina dar nu cred ca e cazul, mai ales ca pare sa comporte din ce in ce mai rau.. chiar si la relanti se simte o mica vibratie ciudata de parca s-ar ineca, desi turatia ramane constanta.

 

Explicatia erorii ar putea fi urmatoarea (o adaptare de la un model mai nou):

"The Powertrain Control Module (PCM) at different times performs various tests on the EVAP system. OBD II Enhanced EVAP systems are in place to keep fuel tank vapors from venting into the atmosphere, and instead purges them into the engine to be burned. Regular pressure tests are conducted by the PCM to monitor the sealed system for leaks. The PCM monitors the EVAP system pressure by watching the fuel tank pressure (FTP) sensor. When the sensor indicates a small leak in the EVAP system, this code is set."

cu posibile cauze: A small leak in any of the EVAP hoses or fuel tank hoses / A small leak in the purge valve or vent valve / The EVAP Canister may be leaking

 

De asemenea cand am conectat-o la INPA am mai vazut niste valori foarte ciudate la motor:

- "pulse duty factor i.s. controller 1" = 42 (desi valoarea maxima e 10)

- "load mg/As/Zyl" = 93 (valoarea maxima 7)

 

Am observat ca la valva DISA se simte o vibratie destul de puternica (cea de aici) Sa fie asta o posibila cauza?

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E clar, acum merge doar in 3 cilindri de zici ca e diesel.. si da eroare pe cilindrul 4.

bobina de inductie nu mai da curent deloc pe bujia 4 probabil s-a dus de la bujie. poate daca verificam bujiile de acum 2 zile de cand au inceput primele simptome nu murea bobina.

asta e, o sa iau bujii noi si o bobina de inductie de la dezmembrari (am gasit cu 150 lei, noua ar fi de la 500 de lei in sus), sper sa nu se mai fi dus si altceva..

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