If your check engine light is on and your OBD-II scanner shows a P0017 code, you're dealing with a timing correlation issue between your crankshaft and camshaft sensors on Bank 1, Sensor B. This is a serious problem that can lead to engine damage if not addressed quickly. This guide explains what P0017 means, how to diagnose it, and the most effective solutions to fix it.
What Does P0017 Mean?
P0017 is a diagnostic trouble code that signals a timing correlation problem between your crankshaft position sensor and camshaft position sensor on Bank 1, Sensor B. Your engine's crankshaft and camshaft must work in perfect synchronization for proper operation.
The camshaft opens and closes valves to let air and fuel into the cylinders, while the crankshaft converts combustion power into motion. Bank 1 refers to the engine side containing cylinder number one, and Sensor B monitors the exhaust camshaft (Sensor A monitors the intake side).
Warning Signs & Symptoms
Beyond the check engine light, watch for these indicators:
Performance Issues:
- Rough idle or excessive vibration
- Difficulty starting or extended cranking
- Loss of power during acceleration
- Engine stalling at low speeds
- Poor fuel economy
Mechanical Symptoms:
- Rattling or knocking noises from the engine
- Engine misfires
- Limp mode activation (reduced power)
If your engine runs smoothly despite the code, you likely have a faulty sensor rather than an actual timing problem. However, this still requires immediate attention.
Common Causes of P0017
- Timing Chain or Belt Problems: The most common cause is a stretched, worn, or jumped timing chain or belt. Over time, these components can stretch or skip teeth on the gears.
- Low or Contaminated Engine Oil: Modern engines with Variable Valve Timing (VVT) depend on proper oil flow. Low oil levels or dirty oil can trigger this code by preventing proper VVT operation.
- Faulty Position Sensors: Either the crankshaft or camshaft position sensor can fail due to wear, heat damage, or internal component failure.
- VVT System Malfunction: Clogged VVT solenoids, stuck actuators, or failed camshaft phasers disrupt timing correlation.
- Damaged Wiring: Frayed sensor wires, corroded connectors, or loose connections send incorrect signals to the engine control module.
Can You Drive With P0017?
Risk Level: SERIOUS - Do not drive with this code.
In interference engines (common in modern vehicles), pistons and valves occupy the same space at different times. When timing is off, pistons can collide with valves, causing bent valves, damaged pistons, or destroyed cylinder heads.
Recommendation: Have your vehicle towed to a repair shop. If your vehicle is under warranty, contact your dealership immediately as timing-related repairs may be covered.
Diagnostic Steps to Identify the Problem
- Check Engine Oil First: Pull the dipstick and verify the oil level is correct and the oil isn't black or sludgy. If oil is low or dirty, change it immediately, clear the code, and test drive for 15-20 minutes.
- Scan for Multiple Codes: Look for related codes like P0016, P0018, P0011, or P0014. Multiple timing-related codes often indicate timing chain issues rather than sensor failures.
- Inspect Wiring & Connections: Examine sensor wiring for damage, check connectors for corrosion, and clean with electrical contact cleaner if needed.
- Test the Sensors: If the engine runs smoothly, test sensor output with a multimeter or swap sensors between banks to confirm sensor failure.
Effective Solutions to Fix P0017
- Solution 1: Oil Change Perform a complete oil change with the manufacturer-specified oil viscosity. This can resolve the issue when VVT systems were affected by oil problems.
- Solution 2: Sensor Replacement Replace the problematic crankshaft or camshaft position sensor with an OEM or high-quality aftermarket part.
- Solution 3: VVT Solenoid Service Remove and clean VVT solenoids with carburetor cleaner, or replace if damaged. Clean oil passages thoroughly.
- Solution 4: Timing Chain/Belt Replacement The most common fix for P0017. The timing chain or belt must be replaced along with tensioners, guides, and related components. Professional installation is recommended due to complexity.
P0017 Repair Cost Comparison
| Repair Type |
DIY Cost |
Shop Cost |
Repair Time |
| Oil Change |
$40–$60 |
$60–$100 |
30–45 min |
| Sensor Replacement |
$50–$200 |
$213–$322 |
30 min–2 hrs |
| VVT Solenoid Service |
$30–$200 |
$200–$400 |
1–2 hrs |
| Timing Chain/Belt Replacement |
$300–$800 |
$1,600–$2,500 |
4–8 hrs |
Costs vary by vehicle make, model, and location. Success rates are estimates based on typical diagnosis patterns.
Prevention & Maintenance Tips
- Change oil regularly using the correct viscosity specified in your owner's manual
- Replace timing belts at manufacturer-recommended intervals
- Use manufacturer-recommended oil filters
- Address check engine lights promptly
- Keep sensors clean and connections secure
When Professional Help Is Needed
Seek immediate professional diagnosis if you hear rattling noises, experience frequent stalling, see multiple timing-related codes, or lack the tools and experience for proper diagnosis.
Related Timing Codes
| Code |
Location |
Description |
|
P0016
|
Bank 1 Sensor A |
Intake camshaft timing correlation issue |
|
P0017
|
Bank 1 Sensor B |
Exhaust camshaft timing correlation issue |
|
P0018
|
Bank 2 Sensor A |
Bank 2 intake camshaft timing issue |
|
P0019
|
Bank 2 Sensor B |
Bank 2 exhaust camshaft timing issue |
FAQs
Can I drive with a P0017 code?
No, you should not drive with P0017. This code indicates a timing issue that can cause pistons to collide with valves, leading to catastrophic engine damage. Have your vehicle towed to prevent further damage.
How much does it cost to fix a P0017 code?
The cost ranges from $60 for an oil change to $2,500 for timing chain replacement. Most cases involve timing chain issues, with typical professional repairs ranging from $1,600-$2,500. Always get a proper diagnosis before committing to repairs.
What's the difference between P0016 and P0017?
P0016 refers to Bank 1 Sensor A (intake camshaft), while P0017 refers to Bank 1 Sensor B (exhaust camshaft). If you have both codes simultaneously, it strongly suggests a timing chain problem rather than sensor failures.
Will changing my oil fix the P0017 code?
Changing your oil can fix P0017 in some cases where low or contaminated oil affected the VVT system. If your oil is low or dirty, change it first before pursuing expensive repairs. Clear the code and test drive for 15-20 minutes to see if it returns.
