Porsche
Mixture adaptation, upper load range, bank 1 below limit: running too rich at higher load. The EVAP purge valve is a common cause.
P1125 fault code: what it means
P1125: Mixture adaptation, upper load range, bank 1 below limit: running too rich at higher load. The EVAP purge valve is a common cause.
Usual causes, most likely first
- EVAP canister purge valve stuck open
- faulty MAF signal
- fuel pressure too high
- leaking injector
P1125 by make
What the repair usually costs
- High-pressure fuel pump (GDI petrol or common-rail diesel)NZ$1,140–NZ$4,280 · A$1,060–A$3,800
Not sure what P1125 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.