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Old 30-09-13, 18:23   #1
ICE_M

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Default Problema bmw n42

Am un bmw e46 318ci 143cp..motor n42b20a..si am o problema:

motorul nu merge rotund cand apas tare pe acceleratie(se aude un fel de rateu in toba..ca si cand merge in 3 cilindrii), daca acclerez usor merge normal...si in mers face la fel-doar la cald. Testerul nu da nici o eroare. (o singura sesizare: sonda lambda 2 are valoarea 0..am schimbat sonda dar tot asa ramane)

ce poate fi problema?
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Old 01-10-13, 14:29   #2
the_rifle

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Default Re: Problema bmw n42

Rateu in evacuare inseamna amestec prea bogat.
Amestecul este facut de calculator analizand datele de la debitmetru si sonda lambda...

Amestec prea bogat inseamna prea multa benzina si prea putin aer.
1. - sonda lambda e nasoala
2. Debitmetru indica un volum de aer mai mare decat e in realiate iar calculatorul baga prea multa benzina
3. Intra prea putin aer ( filtru infundat , vacuumuri nasoale furtunuri crapate etc )


Alte cauze :
- Bobine/bujii nasoale
- Garnituri capac chiulasa/bujii ce permit infiltratii de benzina/ulei in asa fel incat bujia e uda

Last edited by the_rifle; 01-10-13 at 14:31.
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