EVAP Pressure Sensor problem
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Joined: Dec 2018
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2008 Mercedes E350 4 matic
EVAP Pressure Sensor problem
Hi,
I've got P0452, EVAP System Pressure Sensor / Switch Circuit Low about 2 months ago. I looked at the Evaporative System Vapor Pressure. It was about 40 Pa at idle and -650 Pa at 3000 rpm. I cleared the code. It reappeared 1 month later. I cleared it again. Now it does not clear anymore. The scanner says, the clearing was successful, but the problem still persists. It shows -250 Pa at idle.
Gas tank cap seal looks good and tight. No visible fuel leaks under the car. Do I need to replace the fuel tank pressure sensor? Is it under the passenger seat? Ho do I test the sensor to make sure it is bad?
The car is 2008 E350 W211 4matic.
Thanks.
I've got P0452, EVAP System Pressure Sensor / Switch Circuit Low about 2 months ago. I looked at the Evaporative System Vapor Pressure. It was about 40 Pa at idle and -650 Pa at 3000 rpm. I cleared the code. It reappeared 1 month later. I cleared it again. Now it does not clear anymore. The scanner says, the clearing was successful, but the problem still persists. It shows -250 Pa at idle.
Gas tank cap seal looks good and tight. No visible fuel leaks under the car. Do I need to replace the fuel tank pressure sensor? Is it under the passenger seat? Ho do I test the sensor to make sure it is bad?
The car is 2008 E350 W211 4matic.
Thanks.
