Code P0452 means "EVAP pressure sensor signal low" I'm a licensed mechanic currently on the hunt to fix this problem on a Rodeo I'm working on. I'll keep you posted if I figure the problem out. Currently I'm looking at replacing the PCM as my current tests have narrowed it down to that or faulty wiring between the fuel tank and the PCM.
Trouble code P0452 means: Evaporative Emission System Pressure Sensor/Switch Low Input Change out the sensor at that will fix your problem
The code P0452 on a Buick LeSabre is a fuel tank pressure sensor circuit low voltage warning. This sensor is on the top of the fuel tank.
Trouble code P0452 means: Evaporative Emission System Pressure Sensor/Switch Low Input
Code P0452 on a 1998 Buick LeSabre indicates a fault with the fuel tank pressure sensor. This sensor measures the pressure inside the fuel tank and helps monitor the evaporative emissions system. The issue may be due to a faulty sensor, damaged wiring, or issues with the fuel tank itself. It is recommended to have the sensor and its wiring inspected and tested to determine the exact cause of the problem.
Trouble code P0452 means: Evaporative emission control system,pressure sensor low input
disconnect battery for ten minutes then reconnect battery. this should cancel code if problem that caused code has been fixed
replace spark plugs @wires
Trouble code P0452 means: Evaporative Emission System Pressure Sensor/Switch Low Input
This is not a "Generic" OBDII code. That means that it means diferent things on diferent car makes.
Trouble code P1582 means: Idle Adaptation at Limit
Trouble code P0301 means: Cylinder 1 Misfire Detected