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HOMESERVICE MANUALSTOYOTA201886 GT, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - CIRCUIT TESTSSFI SYSTEMEVAP SYSTEM [07/2018 - ]RELATED DTCS
2018 Toyota 86 GT, Standard Trans

Related DTCS

2018 Toyota 86 GT, Standard TransSECTION Related DTCS
DTC No. Monitoring Item Refer to
P0441 Purge flow Refer to DTC P0441: Evaporative Emission Control System Incorrect Purge Flow [07/2018 - ]
P0455 EVAP gross leak Refer to DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak); DTC P1451: Fuel Tank Pressure Sensor Range/Performance; DTC P2404: Evaporative Emission System Leak Detection Pump Sense Circuit Range / Performance [07/2018 - ]
P0456 EVAP small leak
P0458 Purge valve voltage low Refer to DTC P0458: Evaporative Emission System Purge Control Valve Circuit Low; DTC P0459: Evaporative Emission System Purge Control Valve Circuit High [06/2016 - ]
P0459 Purge valve voltage high
P1449 Air filter clogged (built into canister pump module) Refer to DTC P1449: Evaporative Emission System Lid Open Switch Stuck ON [07/2018 - ]
P1451 Pipe clogged Refer to DTC P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak); DTC P1451: Fuel Tank Pressure Sensor Range/Performance; DTC P2404: Evaporative Emission System Leak Detection Pump Sense Circuit Range / Performance [07/2018 - ]
P2404
  • Reference orifice high-flow (built into canister pump module)
  • Reference orifice low-flow (built into canister pump module)
P2401 Leak detection pump stuck OFF (built into canister pump module) Refer to DTC P2401: Evaporative Emission System Leak Detection Pump Control Circuit Low; DTC P2402: Evaporative Emission Leak Detection Pump Stuck ON; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low; DTC P2420: Evaporative Emission Pressure Switching Valve Stuck OFF [06/2016 - ]
P2402 Leak detection pump stuck ON (built into canister pump module)
P2419 Vent valve stuck closed (built into canister pump module)
P2420 Vent valve stuck open (vent) (built into canister pump module)
P24B9 Difference between canister pressure sensor (built into canister pump module) output value and manifold absolute pressure sensor output value Refer to DTC P24B9: EVAP System Leak Detection Pump Pressure Sensor Circuit Range / Performance; DTC P24BA: EVAP System Leak Detection Pump Pressure Sensor Circuit Low; DTC P24BB: EVAP System Leak Detection Pump Pressure Sensor Circuit High [07/2018 - ]
P24BA Canister pressure sensor (built into canister pump module) voltage low
P24BB Canister pressure sensor (built into canister pump module) voltage high
P2610 Soak timer (built into ECM) Refer to DTC P2610: ECM / PCM Internal Engine Off Timer Performance [06/2016 - ]

If any EVAP system DTCs are stored, the malfunctioning area can be determined using the table below.

GTY866371Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
GTY723860Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE:

If the reference pressure difference between the first and second checks is more than the specification, all the DTCs relating to the reference pressure (P0455, P0456, P1451, P2404) will all be stored.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.