P0016 on Alfa Romeo: How to Diagnose & Fix
Crankshaft/Camshaft Position Correlation - Bank 1 Sensor A
1 Alfa Romeo model · 1 documented issue · 1 critical · $800-$3,000 repair
P0016 on Alfa Romeo by model: symptoms, diagnosis and fix
On the 2.0L turbo four-cylinder, owners report a metallic rattle at cold/hot start, attributed to the timing chain tensioner waiting for oil pressure or, in some cases, a loose wastegate actuator. More seriously, early 2017-2018 engines had an oil pump mounting bolt that could loosen, dropping oil pressure and accelerating chain/actuator wear; some owners found metal particles in the oil. Alfa updated the oil pump on 2019/2020+ engines.
Common Symptoms
- Metallic rattle at start-up
- Rattle when parking a hot engine
- Louder-than-normal engine noise
- Metal particles in oil
- Low oil pressure warning
How to Fix
Diagnose the rattle source: tighten/replace the wastegate actuator if loose, or replace the timing chain assembly and camshaft actuators (variable valve timing solenoids) if the chain has stretched. For affected early engines, inspect/re-torque or replace the oil pump with the updated part. Maintain shorter oil-change intervals (around 6,000 miles) with correct-spec oil.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Aftermarket complete timing-chain kit 1450109MM for Alfa Romeo Giulia 2.0
replace a measured worn or stretched timing-chain system; not an oil-pump or wastegate repair Fitment/availability: Alfa Romeo Giulia 2.0 from 2016 onward as listed; confirm VIN, GME-T4 engine code, kit contents and installed/superseded …
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Sources for this issue (3)
P0016 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 P0016 mean on a Alfa Romeo?
P0016 stands for "Crankshaft/Camshaft Position Correlation - Bank 1 Sensor A." P0016 means the engine computer found that the crankshaft and camshaft position sensors on Bank 1 (Sensor A) are not lining up the way they should — the timing 'correlation' between them is out of range. These two sensors tell the computer where the pistons and valves are so it can time fuel injection and spark precisely. When their signals don't agree within tolerance, the computer sets this code. It generally indicates an engine timing issue, which may be a worn timing chain, a sticking variable valve timing component, or a sensor problem, and can cause rough running, hard starting, or potential engine damage if ignored. On Alfa Romeo it is documented across 1 model: Giulia.
What are the most common causes of P0016?
The most common causes of P0016 are: Stretched timing chain or worn timing components (guides/tensioner), Faulty camshaft position sensor or crankshaft position sensor, Stuck or faulty variable valve timing (VVT/VCT) actuator or solenoid, Low or dirty engine oil affecting the VVT actuator, Clogged oil control valve or restricted oil passages, Timing chain/belt installed one tooth off after service, Damaged reluctor/tone ring on the crankshaft or camshaft, Wiring or connector faults at the position sensors. The specific cause varies by vehicle.
How much does it cost to fix P0016 on a Alfa Romeo?
Published repair estimates on Alfa Romeo range from $800 to $3,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0016 on a different make?
View P0016 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.