Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2004FOCUS ZX3, 2.0 3, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS - CNG, FLEX-FUEL & GASOLINEDIAGNOSTIC TROUBLE CODE (DTC) CHARTSP1408 - EGR FLOW OUT OF SELF-TEST RANGE (NON-MIL)
2004 Ford Focus ZX3, 2.0 3, Standard
P1408 - EGR Flow Out Of Self-Test Range (Non-Mil)
2004 Ford Focus ZX3, 2.0 3, StandardSECTION P1408 - EGR Flow Out Of Self-Test Range (Non-Mil)
P1408 - EGR FLOW OUT OF SELF-TEST RANGE (NON-MIL)
| Description: | This test is performed during the KOER ondemand self-test only. The EGR system is commanded on at a fixed engine speed. The test fails and the DTC is output when the measured EGR flow falls above or below the required calibration. | ||
| Possible Causes: | For vacuum activated systems, see the possible causes for DTC P0401. For electric motor systems, see the possible causes for DTC P0400. | ||
| Diagnostic Aids: | For electric EGR, use the output state control function of the diagnostic tool and monitor the MAP PID (MAP) and the EEGR PID (EGRMDSD) while commanding the EEGR on. If EGR is introduced into the engine at idle, the RPM will drop or stall out. For vacuum systems see Diagnostic Aids for P0401. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| Vehicles with Electric EGR (EEGR) | - | GO to KD: Electric Exhaust Gas Recirculation (EEGR) System STEP 9 | - |
| Vehicles with an EGR System Module (ESM) | - | GO to HH: Exhaust Gas Recirculation System Module (ESM) STEP 17 | - |
| All others | - | GO to HE: Exhaust Gas Recirculation (EGR) Systems STEP 36 | - |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.