Hey guys. I was referred to this forum from one of the G35Driver guys. Been having this CEL on for a while and i havent been able to locate the exact issue. I have figured out that i have a break in my ground wire that goes to the back of my fuel tank pressure sensor, although have not been able to locate a break in the wiring harness. I want to check continuity from the back of the ecu to the plug at the sensor, but i am not sure what pin it is off the ecu, can someone help with a wiring diagram or point me in the right direction? thanks a lot.

here is the original thread for reference....

http://g35driver.com/forums/engine-d...-now-what.html

thanks

 

Check you gas cap? Did you add gas while the engine was running"

 

P0452 Infiniti Description

The Evaporative Emission System (EVAP) control system pressure sensor detects pressure in the purge line. The sensor output voltage to the Engine Control Module (ECM) increases as pressure increases. The EVAP control system pressure sensor is not used to control the engine system. It is used only for on board diagnosis.