Hours: 07–23 daily

TuningBot DTC Database · v4.37.15

P1408 Mazda - Exhaust gas recirculation (EGR) system - flow out of self - test range

Manufacturer-specific interpretation for Mazda. All interpretations of P1408

P · PowertrainEmissionsOBD2

What P1408 means

P1408
Exhaust gas recirculation (EGR) system - flow out of self - test range Mazda · emissions Data confidence 80%

The control module detected a fault associated with the Exhaust gas recirculation (EGR) system - flow out of self - test range circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mazda.

Possible causes

  • Wiring
  • EGR solenoid valve
  • mechanical fault

Related and nearby codes

How to read P1408

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

408

Specific fault index within the subsystem.

Frequently asked questions about P1408

What does P1408 mean?

Exhaust gas recirculation (EGR) system - flow out of self - test range. The control module detected a fault associated with the Exhaust gas recirculation (EGR) system - flow out of self - test range circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mazda.

Is P1408 generic or manufacturer-specific?

P1408 is a manufacturer-specific code. In this database it is documented for: Mazda. The same number can mean something different on other brands.

Can TuningBot remove P1408 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningStage 1 dyno results for Mazda engines See the results →

← Search the full DTC database