P1240 on 2009-2020 SEAT Ibiza (Reference, Style, FR, Xcellence) — Manufacturer-Specific Injector / Fuel System Circuit Fault
1 vehicles · 1 makes · $300-$1,800 repair
Most Reported On
P1240 is an OBD-II diagnostic trouble code meaning “Manufacturer-Specific Injector / Fuel System Circuit Fault.” P1240 is a manufacturer-specific powertrain code, generally associated with a fuel injector or fuel-system circuit fault, though the exact assignment differs by manufacturer. On several platforms it indicates a problem in a specific cylinder's injector circuit (often referenced as cylinder 4) or a related fuel-control/power-supply issue. A fault here can disrupt precise fuel delivery and lead to rough idle, misfire, and reduced performance. Confirm the exact meaning with make-and-model service information. This code is most commonly reported on 2009-2020 SEAT Ibiza (Reference, Style, FR, Xcellence), with repair costs ranging from $300 to $1,800.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
P1240 does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
FAQ
What does P1240 mean?
P1240 stands for "Manufacturer-Specific Injector / Fuel System Circuit Fault." P1240 is a manufacturer-specific powertrain code, generally associated with a fuel injector or fuel-system circuit fault, though the exact assignment differs by manufacturer. On several platforms it indicates a problem in a specific cylinder's injector circuit (often referenced as cylinder 4) or a related fuel-control/power-supply issue. A fault here can disrupt precise fuel delivery and lead to rough idle, misfire, and reduced performance. Confirm the exact meaning with make-and-model service information.
What are the most common causes of P1240?
The most common causes of P1240 are: Faulty or open fuel injector (cylinder-specific), Wiring, connector, or harness fault in the injector circuit, Injector power-supply or ground problem, Corroded or loose electrical connections, Faulty injector driver in the PCM/ECM, Fuel-system pressure or delivery fault (some makes), Internal PCM/ECM fault. The specific cause varies by vehicle.
How much does it cost to fix P1240?
Repair costs for P1240 range from $300 to $1,800, depending on the vehicle and root cause.
Which vehicles are affected by P1240?
Au7o has documented P1240 across 1 vehicle models from 1 manufacturers: SEAT.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.