Lexus Acura Error Code P1656: How to Fix It

Q: What causes Lexus Acura error code P1656?

P1656 is typically caused by a faulty oil control valve, damaged wiring to the OCV, low or dirty engine oil, or corroded electrical connections in the variable valve timing system.

Q: Can I drive with P1656 error code?

While you can drive short distances, P1656 should be addressed promptly as it affects engine performance and fuel economy. Prolonged driving with this error may cause additional engine damage.

Q: How much does it cost to fix P1656?

DIY repair costs range from $50-200 for an OCV replacement. Professional repair typically costs $300-600 including labor, depending on your vehicle model and local labor rates.

Q: Will P1656 cause my car to fail emissions testing?

Yes, P1656 will likely cause your vehicle to fail emissions testing as it indicates a problem with the engine management system that affects emissions control.

Q: How often should I replace the oil control valve?

Oil control valves don't have a specific replacement interval but typically last 100,000-150,000 miles. Regular oil changes with quality oil help extend OCV life significantly.

Abstract

Error code P1656 indicates a problem with the Oil Control Valve (OCV) control circuit B1 in your Lexus or Acura vehicle. This error affects the variable valve timing system and can cause rough idling, poor acceleration, and reduced fuel economy.