P0017

Q: What does OBD2 code P0017 mean?

P0017 means: Crankshaft/Camshaft Position Correlation Bank 1 Sensor B. Exhaust camshaft position signal does not correlate with crankshaft position on Bank 1.

Crankshaft/Camshaft Position Correlation Bank 1 Sensor B

Exhaust camshaft position signal does not correlate with crankshaft position on Bank 1.

SeverityCritical

CategoryEngine

Est. Repair Cost$300–$1200

Code TypePowertrain

DIY RepairProfessional

⚡ Common Causes

›Timing chain stretch
›Worn tensioner
›Faulty exhaust cam sensor
›Oil sludge in VVT

⚠️ Symptoms

›Rough idle
›Hard start
›Timing chain rattle
›Poor performance

✅ How to Fix — Step by Step

Step 1:Replace timing chain and tensioner
Step 2:Replace exhaust cam sensor
Step 3:Flush VVT system with oil change
Step 4:Verify all timing marks

🔧 Diagnostic Tools Required

✔OBD-II Diagnostic Scanner
✔Digital Multimeter
✔Fuel Pressure Gauge
✔Compression Tester
✔Spark Tester

Using the correct diagnostic tools helps identify the root cause of P0017 before replacing parts unnecessarily. Always confirm the fault using live data and manufacturer-recommended diagnostic procedures.

💡 Pro Tip: Never ignore timing chain codes — a snapped chain can cause catastrophic engine damage.

Repair Cost Estimate

Full Repair Estimate

$300–$1200

DIY Possible?

PRO

Severity

Critical

Frequently Asked Questions

What does OBD2 code P0017 mean?+

P0017 stands for Crankshaft/Camshaft Position Correlation Bank 1 Sensor B. Exhaust camshaft position signal does not correlate with crankshaft position on Bank 1.

What causes code P0017?+

Timing chain stretch; Worn tensioner; Faulty exhaust cam sensor; Oil sludge in VVT

How do I fix code P0017?+

Replace timing chain and tensioner; Replace exhaust cam sensor; Flush VVT system with oil change; Verify all timing marks

How much does it cost to fix P0017?+

Estimated repair cost for P0017 is $300–$1200.

Is P0017 DIY-friendly?+

P0017 typically requires professional equipment and a qualified mechanic.