to start and will not idle, have had it scanned and code po453 comes up

Question

I have been told it should not effect drivability, but I can't keep it running. Is it possible the PCM is bad?

Answer 1

Hi there,

This code indicates an issue with the fuel tank pressure sensor. Here is some info for you.

P0453 MAZDA - Fuel Tank Pressure Sensor Malfunction Input Above Calibration

Read more: https://www.autocodes.com/p0453_mazda.html