0452 trouble code???

bought a code reader for my intermittent SES light problem, it read 0452 Evapoative Emissions Control System Pressure Sensor Low Input.

Just wondering if anyone can tell me some info about this part like where it is located, if its hard to get too, and maybe part numbers to replace it.... thanks for any help...oh yeah i have 01 blazer if that might help

That code is for a fault with the Fuel Tank Pressure sensor.
The sensor is located on top of the fuel tank.

is it a pain to get to too replace it???

You will have to drop the fuel tank to access the sensor

did the code come on soon after the last time you filled up on gas or between fill ups? I had the same problem. The check engine light came on the day after I filled up on gas. 250 dollars and two days later, the dealership told me the code came on because the GAS CAP was not on tight! :banghead: Hope this helps you, wish I would have known

did the code come on soon after the last time you filled up on gas or between fill ups? I had the same problem. The check engine light came on the day after I filled up on gas. 250 dollars and two days later, the dealership told me the code came on because the GAS CAP was not on tight! :banghead: Hope this helps you, wish I would have known
Most likely you had a P0440 or 442 code.