Pesky P0496 keeps coming back
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PCM-Engine Petrol P0496-00 (E8) Evaporative emission system high purge flow ( on 23-04-2019 17:46:34 at 96896 mi ) Dealer replaced the purge / solenoid valve last spring. Code stayed off for 3 months, I reset it and then it came back after 2 months. And now it seems to show up every other thank of fuel. It does not care if I use regular unleaded or premium, same results I have pulled the LR brand valve, cleaned the hoses and plastic parts and reassembled 3 months ago. I have replaced with another LR brand valve last month. I just pulled it off and made sure all of the connectors were tight. Tonight while clearing the codes, I decided to look at live values. Knowing that there are some things that can be read on the LR4 that cannot be read on the LR3, I took a chance and found a live value in the untested section. I do not know if the times listed are within the limits or not, but I suspect a leak in the hose somewhere between the valve and the fuel tank or a second bad valve, but without knowing how long it should take to pressurize, I am just guessing. Does anyone know the pressures or times that will make the computer happy? Jeff |
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