← View Generic P0453 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

P0453: Evaporative Emission Control System Pressure Sensor High Input

on 2021 Honda PASSPORT

Fix Cost
$20 - $200
Parts & Labor
Difficulty
2/5
30 mins - 2 hours
DIY Possible?
✅ Yes
Save money
Your Vehicle
2021 Honda
PASSPORT
⚠️

Important for 2021 Honda PASSPORT Owners

Before starting repairs, verify which engine your 2021 Honda PASSPORT has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P0453 Mean on 2021 Honda PASSPORT?

The EVAP pressure sensor is reading consistently high pressure or has a circuit problem.
⚠️

Symptoms

  • • Check engine light
  • • failed emissions test
  • • EVAP system may not vent properly.
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Common Causes

  • • Faulty EVAP pressure sensor
  • • wiring short to power
  • • poor connections
  • • actual high pressure in system.
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How to Fix P0453 on 2021 Honda PASSPORT

Replace EVAP pressure sensor, repair wiring shorts, clean connections, check EVAP vent valve operation.

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Need Maintenance Info for Your PASSPORT?

Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.

View 2021 Honda PASSPORT Specs

Parts for 2021 Honda PASSPORT

Gas Cap Shop ↗ EVAP Purge Valve Shop ↗ EVAP Canister Shop ↗ Vacuum Hoses Shop ↗

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Related Diagnostic Codes

Other codes that may appear with P0453

P0451 Sequential Code

Evaporative Emission Control System Pressure Sensor Range/Performance

Medium
P0452 Sequential Code

Evaporative Emission Control System Pressure Sensor Low Input

Medium
P0454 Sequential Code

P0454: Evaporative Emission Control System Leak Detected

Medium
P0455 Sequential Code

EVAP System Leak Detected Large Leak

Medium

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system