EVAPORATOR EMISSIN LEAK SMALL

2005 Mercedes Benz C230

Tiny

xj6

June, 29, 2011 AT 3:40 PM

I replaced gas cap but still get a p0456 code

2 Answers

Tiny

orionblu230

June, 30, 2011 AT 11:16 PM

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

xj6

July, 1, 2011 AT 2:24 PM

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

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