Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P1407LACKOF EGR FLOW
P1407LACKOF EGR FLOW
Manufacturer communications
5Original wording in English
FORD, MERCURY
SOME VEHICLES MAY EXHIBIT A CHECK ENGINE LIGHT AND/OR EGR DIAGNOSTIC TROUBLE CODES 332, P0401, P1407 (LACKOF EGR FLOW). *TT
MAZDA
SUBJECT REGARDING MALFUNCTION INDICATOR LIGHT (MIL) ILLUMINATION W/DTC P1407. *YC
MAZDA
A CONDITION WITH THE MIL ILLUMINATED WITH CODE P1407 STORED IN MEMORY. *TT
FORD
SOME VEHICLES MAY EXHIBIT A CONCERN WHERE THE CHECK ENGINE MALFUNCTION INDICATOR LAMP MAY ILLUMINATE IN BELOW FREEZING TEMPERATURES AND DIAGNOSTIC TROUBLE CODE P1407 IS STORED IN CONTINUOUS MEMORY. *TT
Check vehicle applicability
28A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
EGR No Flow Detected
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.