Question

2002 Mazda B3000 with engine codes P0300 and P1130, engine shouts off

Answer 1

Hi there,

The P0300 code means the cylinders are misfiring. Here is some info regarding this code.
P0300 MAZDA - Random Cylinder Misfire Detected
Read more: https://www.autocodes.com/p0300_mazda.html

The P1130 code indicates an issue with the O2 sensor. Here is some info regarding this code.
P1130 MAZDA - Heated O2 Sensor 11 At Adaptive Limit
Read more: https://www.autocodes.com/p1130_mazda.html