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05/10/2021LAST POST
e90 m3 avec 135 000 mi tous les gros travaux d'entretien à peu près à la vitesse, mais les trois ou quatre derniers remplissages ayant un décrochage et un redémarrage lent. Je viens de changer ma pompe MTL. Le magasin pense que la pompe à carburant pourrait sortir. Il a fait cette chose de pulvérisation cathodique de décrochage une ou deux fois au feu stop. Je voulais juste vérifier et voir avant d'aller de l'avant avec la pompe à carburant si quelqu'un pensait que cela pourrait être n'importe quoi d'autre, seuls les codes qui ont été jetés sont des ratés dans tous les cylindres. magasin a d'abord jeté un oeil à elle après installé au feu juste près du magasin et ils m'ont dit qu'il n'y avait pas de carburant trouvé dans la chose de débordement que je ne peux pas me rappeler comment il s'appelle, mais ils ont dit pompe à essence probablement ne serait pas jeter des codes .. voiture autrement est à peu près en bonne forme roulements de tige etc tous achevé depuis le besoin il ya 4 ans.

L'année dernière, une nouvelle vanne a été mise en place. Je voulais juste vérifier si cela pouvait être une soupape de commande au ralenti ou un respirateur de carburant pour la décision coûteuse de la pompe à carburant.

S'excuser pour la grammaire en utilisant la voix pour taper pendant la conduite
Il me semble que ça pourrait être la valve d'aspiration de carburant
dmz_m3 wrote
Sounds to me like it could be the fuel breather valve
that would be phenomenal.. could it still be that if the overflow tank think was empty? that's what we found when checked.... forgive my incorrect naming
dmz_m3 wrote
Sounds to me like it could be the fuel breather valve
^This. Sounds like pretty classic signs.
Prior to dumping that type of cash on a pump I would check and see what type of pressure you are getting out of it. Unless the shop specializes in BMW they likely defaulted to "sounds like the fuel pump" because they have no idea what else it could be. Without pressure testing the pump it would be silly just to throw another one on there.

There are numerous threads on this issue and it sounds like you are suffering from the breather valve failure which is not uncommon.

https://www.m3post.com/forums/showthread.php?t=1273927
tbuck wrote
Prior to dumping that type of cash on a pump I would check and see what type of pressure you are getting out of it. Unless the shop specializes in BMW they likely defaulted to "sounds like the fuel pump" because they have no idea what else it could be. Without pressure testing the pump it would be silly just to throw another one on there.

There are numerous threads on this issue and it sounds like you are suffering from the breather valve failure which is not uncommon.

https://www.m3post.com/forums/showthread.php?t=1273927
they are specialty BMC, Porche... very good shop, but the master BMW tech was out the day I brought it in, very late in the day after a stall out. But, this shop has never ever tried to upsell me on anything, trust them 100% based on the last 4 years they have been incredible to me and the car. But they hooked it up, ran codes (only misfires), and drove it around (nothing happened for them), checked the overflow canister thing, etc.. they are going to swap the fuel breather valve first this week, hopefully that's the fix. It's still on original so worth a shot. hopefully that's it.. thanks for the link and information, fingers crossed!
wfdeacon88 wrote
tbuck wrote
dmz_m3 wrote
Sounds to me like it could be the fuel breather valve
^This. Sounds like pretty classic signs.
https://www.ecstuning.com/b-genuine-bmw-parts/fuel-tank-breather-valve/13907838281/

going to give this a try, don't want to risk $1100 on a fuel pump replacement if it's just this part... is this the only part I need?
If you're replacing it yourself you may want to get the kit with the hose. The connector to the valve can be difficult to remove.

https://www.ecstuning.com/b-assembled-by-ecs-parts/fuel-tank-breather-valve/13907838281kt/