P0453: EVAP pressure sensor circuit high
The ECU is getting a voltage from the fuel tank pressure sensor that is above the possible range. Almost always wiring, connector or sensor.
| Code | P0453 |
|---|---|
| System | Engine and transmission |
| Group | P04xx, Emissions control |
| Type | Generic: it means the same on every make |
| Can you keep driving? | Yes, no rush |
What P0453 means
The tank pressure sensor monitors fuel vapour so the ECU can detect leaks. Its signal has gone above the normal range, which points to an electrical problem: wiring, connector, earth or the sensor itself.
Most common causes
- Loose or corroded sensor connector
- Broken sensor earth
- Signal wire shorted to a positive feed
- Faulty pressure sensor
Symptoms
- Engine warning light on
- EVAP leak testing stops working
- No change in how it drives
Can you drive with P0453?
Yes, no rush It does not affect the engine. You can drive normally and fix it when convenient.
Open the bonnetthe in-depth explanation
How to check it
With the ignition on and the fuel cap open, check tank pressure on your reader: it should read close to zero. If it sits at maximum, check the sensor connector, usually on top of the tank or by the canister.
How to read and clear P0453 with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P0453 with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- P044F The secondary air injection system switching valve A gives a higher signal than
- P0450 The evaporative emission system pressure sensor is not working properly
- P0451 EVAP pressure sensor range or performance problem
- P0452 EVAP pressure sensor circuit low
- P0454 EVAP system pressure sensor intermittent signal
- P0455 EVAP system large leak detected
- P0456 EVAP system very small leak detected
- P0457 EVAP system leak: fuel cap loose or missing
- P0400 Exhaust gas recirculation (EGR) flow malfunction
- P0401 Exhaust gas recirculation (EGR) flow insufficient
- P0402 Exhaust gas recirculation (EGR) flow excessive
- P0403 EGR control circuit malfunction
What does code P0453 mean?
The tank pressure sensor monitors fuel vapour so the ECU can detect leaks. Its signal has gone above the normal range, which points to an electrical problem: wiring, connector, earth or the sensor itself.
Can you drive with P0453?
It does not affect the engine. You can drive normally and fix it when convenient.
How do you clear P0453?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P0453 comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
