FTC Reader Disclosure: When you purchase or register through links on our site, we may earn an affiliate commission at no extra cost to you. Read our Editorial & Advertising Policy.

P0442 on Toyota Camry: Fix & DLC Location

Factory diagnostic troubleshooting wire for fault code P0442 (EVAP System Small Leak Detected - Diagnosis & Repair Guide) specifically on the Toyota Camry (2020–2026, 2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP).

Toyota Camry
DIY Parts Estimate
$25 - $200 (DIY: $15)
Camry OEM Fitment
Shop Labor Quote
$180 – $380
Based on $110/hr labor
Drivability Status
Drivable (Short Trip)
Low urgency level
Est. DIY Time
45 – 90 Min
Basic hand tools
Check P0442 On Another Toyota Model:
Toyota CamryToyota Camry HybridToyota Camry TRDToyota CorollaToyota RAV4Toyota HighlanderToyota Grand HighlanderToyota TacomaToyota TundraToyota 4RunnerToyota CrownToyota PriusToyota Land Cruiser

1. Symptoms of P0442 on Toyota Camry

When the Engine Control Module (ECM/PCM) on your Toyota Camry (2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP) logs fault code P0442, drivers commonly observe:

Check Engine Light on on Toyota Camry (2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP)
Intermittent faint fuel odor near rear wheel well on Toyota Camry (2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP)
Failed OBD-II smog check on Toyota Camry (2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP)
Toyota Camry OBD-II Port Location
The 16-pin diagnostic connector is located Directly under driver dash, left of steering column above brake pedal. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Toyota Camry

Historical warranty claims and technical repair bulletins for Toyota Camry point to the following failure distribution:

55%
Worn or cracked gas cap rubber seal (Toyota OEM Part)
25%
Small split in charcoal canister vapor line (Toyota OEM Part)
12%
Leaking EVAP vent valve solenoid (Toyota OEM Part)

3. Step-by-Step DIY Repair Guide for Toyota Camry

01
Clean or Replace Gas Cap O-Ring

Inspect the gas cap gasket for micro-cracks or debris. Replace with OEM cap if hardened. on the Toyota Camry equipped with 2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP.

02
Perform EVAP Smoke Machine Test

Inject mineral oil smoke into the EVAP service port to visually pinpoint the pinhole leak. on the Toyota Camry equipped with 2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP.

03
Replace Vent Solenoid Valve

If smoke escapes from the canister vent, replace the stuck solenoid. on the Toyota Camry equipped with 2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP.

Other Common Fault Codes on Toyota Camry

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Toyota Camry:

4. Toyota Camry P0442 FAQs

What causes code P0442 to trigger on a Toyota Camry?

On the Toyota Camry (2.5L 4-Cyl (A25A-FKS) / 3.5L V6 (2GR-FKS) 301HP), P0442 is most frequently caused by Worn or cracked gas cap rubber seal or Small split in charcoal canister vapor line.

Where is the OBD-II port located on my Toyota Camry?

On the Toyota Camry, the 16-pin DLC diagnostic connector is located Directly under driver dash, left of steering column above brake pedal. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Toyota Camry with code P0442?

Safe to drive. Will not damage engine internals. Given that P0442 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.