P1404 CHEVROLET Exhaust Gas Recirculation Closed Position Performance

Possible causes

– Faulty Exhaust Gas Recirculation (EGR) valve
– Carbon blockage of the pintle

Tech description

On some models, there is a service bulletin for the P1404 code that suggest reprogramming the Powertrain Control Module (PCM) to repair the problem.

When is the obd code mean?

While monitoring the Exhaust Gas Recirculation (EGR) valve pintle position the Powertrain Control Module (PCM) detected the closed position sensor voltage higher than the learned closed position voltage.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1404 CHEVROLET OBD Code Description