Mechanics

EVAPORATOR EMISSIN LEAK SMALL

2005 Mercedes Benz C230 • 4 cylinder 2WD Automatic •

I replaced gas cap but still get a p0456 code
Avatar
Xj6
June 29, 2011.



I have the same problem with mine, plus a rough in-gear idle and it stalls one second after start up after warm. I believe it is a failing fuel pressure regulator, losing fuel pressure too fast, and possibly resulting in a small EVAP system leak. The FPR is under the airbox, and not very easy to get to. I'm going to try a fuel pressure test first.

Tiny
Orionblu230
Jun 30, 2011.
Thanks for your reply! I have no stalling just the p0456. Let me know how it goes!Ok? And good luck. I hope someone else may have another idea if it is not the presure regulator

Tiny
Xj6
Jul 1, 2011.