Mazda
SKYACTIV-D 1.5 low-pressure EGR flow insufficient. Often sensor signals or carbon; power may be restricted.
P049B fault code: what it means
P049B: SKYACTIV-D 1.5 low-pressure EGR flow insufficient. Often sensor signals or carbon; power may be restricted.
Usual causes, most likely first
- LP-EGR valve or cooler blocked
- MAF, MAP or boost temp sensor signal fault
- exhaust pressure or temp sensor fault
P049B by make
What the repair usually costs
- Parking sensor replace, one sensorNZ$130–NZ$520 · A$130–A$510
- EGR valve replacement or cleanNZ$350–NZ$1,710 · A$330–A$1,630
Not sure what P049B means on your car? Ask Credov.
Before you clear it
Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.
Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.