What usually causes it
- A stretched timing chain or belt that has slipped a tooth
- A weak camshaft or crankshaft sensor, the parts that report engine position
- A loose or damaged sensor plug or wire
- A stuck oil control valve or worn timing adjuster
P0016Starts at: Get it checked this week
Engine timing sensors do not agree (bank 1, sensor A)
The computer compares two sensors that track the spinning parts inside the engine. They do not match, so the engine timing may be off.
Check this first
Check the oil level with the dipstick. Low oil can keep the timing system from working right.
What to watch for
- The engine stalls or will not start
- A rattle or whine from the front of the engine
- Rough running or a flashing check engine light
Can I keep driving?
We rate P0016 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
Quick answers about P0016
What does P0016 mean?
Engine timing sensors do not agree (bank 1, sensor A). The computer compares two sensors that track the spinning parts inside the engine. They do not match, so the engine timing may be off.
Can I keep driving with P0016?
We rate P0016 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
What usually causes P0016?
The most common causes, in order: A stretched timing chain or belt that has slipped a tooth; A weak camshaft or crankshaft sensor, the parts that report engine position; A loose or damaged sensor plug or wire; A stuck oil control valve or worn timing adjuster.
Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.