Mazda B2300 error code 332 EGR reduced flow issue after EGR and exhaust sensor replacement on Mazda B2300

Some Mazda B2300 owners report experiencing error code 332, which indicates an EGR reduced flow issue after replacing the EGR and exhaust sensor. These issues may stem from a clogged EGR valve, restricting flow due to carbon buildup or debris. Additionally, owners should ensure that the intake ports are not blocked, as this can create a vacuum leak affecting EGR operation. Some owners find that verifying the EGR flow path is crucial, as blockages can prevent proper function. Furthermore, electrical problems with wiring, temperature sensors, or EGR control solenoids can also trigger this error code. In some instances, issues with the back pressure transducer or its connecting hose to the exhaust system may contribute to EGR flow problems. It is advisable for owners to methodically check these components to identify and resolve the underlying issues.