P1065 on 2012-2019 Fiat 500 (Pop, Sport, Lounge, Turbo, Abarth) — Cylinder 1 Oil Supply Solenoid Valve / ECM Power or Fuel Pressure Fault (manufacturer-specific)
1 vehicles · 1 makes · $800-$1,400 repair
How to diagnose and fix P1065: most-reported vehicles
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Fiat 500 · 2012–2019
The MultiAir electro-hydraulic valve actuation system can fail, causing rough idle, misfires, and check engine light with codes P0014 or P1014. This is a common failure on the 1.4L MultiAir engine, often occurring between 40,000 and 80,000 miles.
Common Symptoms
- Rough idle
- Engine misfire
- Check engine light
- Reduced power
- Ticking noise from engine
How to Fix
Replace the MultiAir actuator unit on top of the cylinder head. Use updated Mopar part number for revised design.
Sources for this issue (4)
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P1065 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
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.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.