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Blink Code 13

Yamaha Motorcycle

Severity: Moderate

Source: OnlyErrorCodes.com — Every error code. One place.

Yamaha Motorcycle Blink Code 13 — Intake Pressure

What Does This Error Mean?

Blink code 13 on a Yamaha motorcycle means the intake air pressure sensor circuit has an open or short. The ECU reverts to default fuel maps. The bike usually still runs but with reduced performance. Check the sensor connector and wiring before assuming the sensor is dead.

Affected Models

  • Yamaha YZF-R1
  • Yamaha YZF-R6
  • Yamaha MT-07
  • Yamaha MT-09
  • Yamaha FZ-09

Common Causes

  • Failed intake air pressure sensor (MAP sensor)
  • Loose or corroded sensor connector
  • Damaged wiring between sensor and ECU
  • Cracked or disconnected vacuum hose to the sensor
  • ECU input pin fault (rare)

How to Fix It

  1. Locate the intake air pressure sensor.

    On most Yamaha sport bikes the sensor is mounted on the airbox or intake plenum, with a small vacuum hose connecting it to the throttle body. Check the service manual for your specific model.

  2. Inspect the sensor connector.

    Disconnect, look for corrosion or bent pins, clean with electrical contact cleaner, and reconnect with a small amount of dielectric grease.

  3. Check the vacuum hose.

    A cracked or disconnected hose causes the sensor to read atmospheric pressure constantly. Trace the hose, replace if cracked or hardened.

  4. Test sensor wiring.

    Use a multimeter to test continuity from the sensor connector to the ECU. An open circuit confirms broken wiring needing repair.

  5. Replace the sensor if testing confirms failure.

    Yamaha intake pressure sensors cost USD 60–120. Most are simple twist-in or single-bolt fittings — a 15-minute job for a DIYer.

Frequently Asked Questions

Can I ride my Yamaha with blink code 13?

Yes, but performance will be down. The ECU uses fixed fuel and ignition maps when the sensor fails, which works but is not optimal. Fuel economy drops and throttle response feels softer. Repair within a few weeks.

What is the difference between blink code 13 and 14 on Yamaha?

Code 13 is an open or short on the intake pressure sensor circuit (electrical). Code 14 is the intake pressure sensor hose system (mechanical — vacuum hose problem). Both relate to the same sensor but at different points in the system.