P0453
Low SeverityEVAP Pressure Sensor High
EVAP System
P0453 — Instant Answer
EVAP Pressure Sensor High
Severity: LOW SEVERITY
Meaning: Fuel tank pressure sensor reads too high.
Safe to drive? Usually yes with caution, but confirm root cause before long trips.
Estimated repair cost: $30 - $80
Most common causes:
- 1. Open circuit in sensor (35-45% of cases)
- 2. Disconnected connector (10-25% of cases)
- 3. Blocked vent causing tank pressure (10-25% of cases)
Common Causes
How to Diagnose P0453
- 1Check connector
- 2Test sensor
- 3Check vent valve
OEM Diagnostic Flowchart
Scroll to load technician if/then branches.
Read live data and freeze frame for P0453 to pinpoint the cause before buying parts.
TopScan
$51.27
DIYers who want phone-based scanning
View on TOPDON
ArtiLink600
$99
DIYers working on ABS/airbag systems
View on TOPDONGot a repair estimate for P0453? Check if the quote is fair before ordering parts.
Parts & Tools for This Job
Common parts shoppers buy for P0453 EVAP Pressure Sensor High.
Oxygen Sensor
Shop Amazon→
Catalytic Converter
Shop Amazon→
EVAP Purge Valve
Shop Amazon→
Gas Cap
Shop Amazon→
As an Amazon Associate, AllOEMManuals earns from qualifying purchases. Prices and availability may vary.
Turn This Into a Confident Next Step
Verify the likely fault first, then compare a quote before you approve expensive work.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
View factory recommended tools
OBD2 scanner
Read codes and freeze-frame data before you guess at the fault.
Most diagnostic jobs start with a scan tool and a verified code path.
Check SpecificationsBattery tester
Check cranking and charging health before replacing expensive parts.
A weak battery can mimic alternator or starter problems.
Check SpecificationsMultimeter kit
Confirm voltage, continuity, and sensor power with one simple kit.
A meter is the cheapest way to rule out a bad circuit fast.
Check SpecificationsRelated Resources
Repair guides, symptom pages, and wiring diagrams related to P0453.
OEM Manual Evidence
Browse →EVAP DTCS — 2013 Acura MDX 3.7L Eng VIN 2 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Acura >> 2013 >...
EVAP DTCS — 2013 Acura MDX 3.7L Eng VIN YD2 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Acura >> 2013...
Engine Control System - Advanced DTCS — 2013 Acura RDX 3.5L Eng VIN 3 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimag...
Engine Control System DTCS — 2013 Acura RDX 3.5L Eng VIN 3 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >...
Related Symptoms
Browse →Exact Vehicle Hubs
Browse →Open the exact vehicle hub grounded by OEM manual evidence related to P0453.
Open the exact vehicle hub grounded by OEM manual evidence related to P0453.
Open the exact vehicle hub grounded by OEM manual evidence related to P0453.
Related Codes
Fault in the fuel tank pressure sensor that monitors EVAP system for leaks.
Fuel tank pressure sensor reads too low.
Fault in the EVAP vent valve circuit. The vent valve allows the EVAP system to breathe.
Frequently Asked Questions
- Can a blocked vent cause P0453?
- Yes — if the tank cannot vent, pressure builds up, and the sensor correctly reads high. Fix the vent issue.
- Will this affect gas pump shutoff?
- Possibly — high tank pressure can cause the pump nozzle to click off repeatedly.
Get the Complete Maintenance Schedule for P0453 drivers
Oil, filters, belts, brakes, and fluid intervals sent to your inbox. Unsubscribe anytime.
Not sure you want to DIY? Compare local shop pricing first.
Author & Review
Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.
Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.
Last updated: 2026-10-30