P0017 on Acura
Crankshaft/Camshaft Position Correlation - Bank 1 Sensor B
P0017 on Acura vehicles indicates crankshaft/camshaft position correlation - bank 1 sensor b. Au7o has documented this code across 1 Acura model — most commonly on TSX. This code means the engine computer has detected that the crankshaft and the Bank 1 'B' camshaft (typically the exhaust camshaft) are out of their proper timing relationship with each other. The computer compares the crankshaft position signal to the camshaft position signal, and when they don't line up within the allowed window, it sets this correlation code. This usually points to mechanical timing being off, most often from a stretched or worn timing chain, a slipped or stuck variable valve timing phaser, or a tensioner problem. You may notice rough running, low power, rattling at startup, or a no-start, and it should be addressed promptly to avoid valve-to-piston contact on some engines. Typical repair costs on Acura range from $400 to $2,200, depending on the specific model and root cause.
Common Causes of P0017
- •Stretched or worn timing chain
- •Worn or failed timing chain tensioner or guides
- •Stuck or faulty variable valve timing (VVT) cam phaser
- •Faulty VVT oil control/solenoid valve
- •Low or dirty engine oil affecting phaser operation
- •Faulty camshaft or crankshaft position sensor
- •Timing chain jumped a tooth or incorrect timing after service
- •Damaged reluctor (tone) ring
P0017 on Acura by Model
Acura TSX(2 issues)
- Timing Chain Stretch Setting P0017 Cam/Crank Correlation - K24Z32009-2014
On the second-generation 2.4L K24Z3 the timing chain and its hydraulic tensioner wear enough for the exhaust cam to fall out of correlation with the crankshaft, setting P0017 (Crankshaft Position - Camshaft Position Correlation, Bank 1 Sensor B). This is the downstream consequence of the same wear pattern that produces the VTC rattle, and the two are routinely repaired together. The K24 is an interference design, so a chain that jumps a tooth under load can put valves into pistons. Owners typically report the cold-start rattle first, then a check engine light and rough running months later - the code is the point at which the repair is no longer optional.
- VTC (Variable Timing Control) Actuator Rattle on Cold Start - K24Z32004-2014
The signature second-generation TSX complaint. At cold start-up the 2.4L K24Z3 emits a loud metallic rattle or grind from the front of the engine lasting roughly 1-3 seconds, then goes quiet. The cause is a defective intake-cam VTC actuator whose internal lock pin fails to hold the actuator at the rest position while oil pressure builds, letting the actuator slap against its stop. Acura acknowledged this in Service Bulletin 10-024 'Engine Rattles at Cold Start-Up' covering 2009-2010 TSX L4 models, naming the VTC actuator (P/N 14310-R40-A01) as the cause. The same rattle occurs on the first-generation CL9 K24A2 (actuator P/N 14310-RBB-003) but is markedly less common there. Left alone the rattle itself is not immediately destructive, but it commonly appears alongside timing chain wear and is the leading warning sign of it.
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View P0017 across all makes →Frequently Asked Questions
What does P0017 mean on Acura?▼
P0017 stands for "Crankshaft/Camshaft Position Correlation - Bank 1 Sensor B." This code means the engine computer has detected that the crankshaft and the Bank 1 'B' camshaft (typically the exhaust camshaft) are out of their proper timing relationship with each other. The computer compares the crankshaft position signal to the camshaft position signal, and when they don't line up within the allowed window, it sets this correlation code. This usually points to mechanical timing being off, most often from a stretched or worn timing chain, a slipped or stuck variable valve timing phaser, or a tensioner problem. You may notice rough running, low power, rattling at startup, or a no-start, and it should be addressed promptly to avoid valve-to-piston contact on some engines. On Acura specifically, this code is documented across 1 model.
What causes P0017 on Acura vehicles?▼
Common causes on Acura: Stretched or worn timing chain, Worn or failed timing chain tensioner or guides, Stuck or faulty variable valve timing (VVT) cam phaser, Faulty VVT oil control/solenoid valve, Low or dirty engine oil affecting phaser operation. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0017 on a Acura?▼
Repair costs on Acura range from $400 to $2,200, depending on the specific model and root cause.
Which Acura models have P0017 documented?▼
Au7o has documented P0017 on 1 Acura model: TSX.