P1065 on 2012-2019 Fiat 500 (Pop, Sport, Lounge, Turbo) — Cylinder 1 Oil Supply Solenoid Valve / ECM Power or Fuel Pressure Fault (manufacturer-specific)
1 vehicles · 1 makes · $800-$1,400 repair
Most Reported On
P1065 is an OBD-II diagnostic trouble code meaning “Cylinder 1 Oil Supply Solenoid Valve / ECM Power or Fuel Pressure Fault (manufacturer-specific).” P1065 is a manufacturer-specific powertrain code with more than one meaning. On some Chrysler/Fiat-family engines it refers to the cylinder 1 oil-supply solenoid valve switching time being out of range (part of variable valve/oil control). On other makes (such as Nissan and some GM applications) it has been used for ECM power supply or fuel-pressure-related faults. Because the definition varies, the exact circuit involved should be confirmed against the specific make and model. This code is most commonly reported on 2012-2019 Fiat 500 (Pop, Sport, Lounge, Turbo), with repair costs ranging from $800 to $1,400.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
P1065 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 P1065 mean?
P1065 stands for "Cylinder 1 Oil Supply Solenoid Valve / ECM Power or Fuel Pressure Fault (manufacturer-specific)." P1065 is a manufacturer-specific powertrain code with more than one meaning. On some Chrysler/Fiat-family engines it refers to the cylinder 1 oil-supply solenoid valve switching time being out of range (part of variable valve/oil control). On other makes (such as Nissan and some GM applications) it has been used for ECM power supply or fuel-pressure-related faults. Because the definition varies, the exact circuit involved should be confirmed against the specific make and model.
What are the most common causes of P1065?
The most common causes of P1065 are: Faulty oil control / oil supply solenoid valve (cylinder 1), Wiring or connector problems in the solenoid circuit, Low or contaminated engine oil affecting solenoid operation, ECM/PCM power-supply or ground fault (some makes), Fuel pressure sensor or fuel delivery fault (some makes), Faulty PCM/ECM, Related variable valve timing circuit issue. The specific cause varies by vehicle.
How much does it cost to fix P1065?
Repair costs for P1065 range from $800 to $1,400, depending on the vehicle and root cause.
Which vehicles are affected by P1065?
Au7o has documented P1065 across 1 vehicle models from 1 manufacturers: Fiat.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.