P0016 Toyota Corolla
Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) · Powertrain Code · Critical · Repair: Moderate
What is P0016?
The crankshaft and camshaft position sensors on bank 1 are out of sync. Often caused by a stretched timing chain, jumped timing, or a failed VVT solenoid.
When the Toyota Corolla triggers code P0016 (crankshaft position - camshaft position correlation (bank 1 sensor a)), it typically points to an issue in the powertrain system. This is a critical severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Toyota Corolla.
This repair is rated moderate, meaning some experience and specialty tools required.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Toyota Corolla.
Common Causes on Toyota Corolla
- VVT-i oil control valve stuck from sludge on 2.5L Dynamic Force engine
- Timing chain stretch on older 1.8L 2ZR-FE engines at high mileage
- Camshaft position sensor failure from age or heat damage
- Low oil pressure due to worn oil pump or clogged screen
Symptoms
- Hard starting or extended cranking before engine fires
- Rough idle with noticeable engine vibration
- Rattling or chain-slap noise on cold startup
- Reduced engine power and sluggish acceleration
- Check engine light illuminated
- Intermittent stalling at idle
Notes for Toyota Corolla
Toyota VVT-i oil control valves are relatively inexpensive and accessible on the cylinder head.