Honda Engine Error Code P1659: How to Fix It

Q: Can I drive with Honda error code P1659?

You can drive short distances with P1659, but avoid high RPM operation. The VTEC system won't engage properly, reducing engine power and efficiency. Get it diagnosed and repaired promptly to prevent potential engine damage.

Q: How much does it cost to fix P1659 on a Honda?

DIY repairs typically cost $50-150 for a new VTEC pressure switch or solenoid. Professional repair costs range from $200-500 depending on labor rates and parts needed. Oil changes may resolve the issue if caused by dirty oil.

Q: What causes Honda P1659 error code?

Common causes include a faulty VTEC pressure switch, dirty or low engine oil, clogged oil passages, failed VTEC solenoid, or wiring issues. Poor maintenance is often the root cause, as VTEC systems depend on clean, adequate oil pressure.

Q: Will P1659 cause my Honda to fail emissions testing?

Yes, P1659 will likely cause your Honda to fail emissions testing. The error indicates incomplete engine performance monitoring, which prevents the OBD system from completing its self-tests required for emissions compliance.

Q: How do I prevent Honda P1659 from happening again?

Maintain regular oil changes with Honda-recommended oil viscosity, replace oil filters on schedule, avoid extended high-RPM operation when oil is due for change, and address any oil leaks promptly. Quality oil maintenance is key to VTEC system longevity.

Abstract

Honda error code P1659 indicates a VTEC (Variable Valve Timing and Lift Electronic Control) pressure switch malfunction. This error affects your engine's ability to optimize valve timing, potentially reducing power and fuel efficiency. While this is a high-severity issue, many causes can be diagnosed and fixed with basic tools.