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E91 320d M47 , nu mai porneste.


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Va salut! Scriu acest topic in speranta de a ma ajuta. Masina in cauza BMW SERIA 3 E91 2006 2 0d 163cp cutie automata 6viteze.

Problema: am inlocuit dpf-ul ,iar pentru a-mi face loc sa prind bine dpf-ul de turbina am demontat capacul de la culbutori ( injectoare, admisie,etc).

Am pus toate la loc , surpriza , masina nu mai porneste. Initial am crezut ca nu porneste fiindca s a dezamorsat circuitul de motorina , conductele de la rampa la injectoare fiind scoase cam 1 zi. Am intrat in ista , i am facut bleeding.. nimic. Invarte dar nu porneste, intre timp ma lasase si bateria la cat am dat la automat. Am facut si o diagnoza , singura eroare :

4b90 - Rail pressure at engine start. ( cvea de genu') . 

Am vazut ca pana in pompa de inalta presiune vine motorina , dar din pompa in rampă nu.

Masina pornea foarte bine , atat la rece cat si la cald, fara zgomote de injectoare sau ceva, deci nu as crede ca s a putut duce pompa. 

Daca m-ar putea ajuta cineva , m-ati salva!

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Revin cu update:  ieri dimineata am luat injector SH verificat, l-am pus in locul inj 1 care pierdea enorm pe retur, scris injector , masina porneste fara probleme. Pentru cei care au eroarea 4b90:

1)verificati daca vine motorina catre pompa de inalta dinspre rezervor la punerea contactului sau in momentul cand da la automat.( al meu e91 da in momentul cand se da la automat altele cand pui contactul). Daca vine treceti la pasul 2.

2)verificati scurgeri/pierderi motorina pe sistemul de inalta presiune. Daca nu se vad urme de pierdere de motorina , treceti la 3. 

3) test retur injecoare! 

Edited by Ciprian1701
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