P1457 1996 Honda Civic Code - Evaporative Emissions Control System Leakage EVAP Canister System
Quick Answer
The evaporative emission (EVAP) control system stores fuel vapor from the fuel tank in the EVAP canister temporarily to prevent it from escaping to the atmosphere and to enable it to be drawn into the engine by intake manifold vacuum and burned. Common causes include Missing Fuel Filler Cap, Incorrect Fuel Filler Cap used, Fuel Filler Cap remains open or fails to close. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1457 1996 Honda Civic indicates Evaporative Emissions Control System Leakage EVAP Canister System.
- Common causes
- Common causes include Missing Fuel Filler Cap, Incorrect Fuel Filler Cap used, Fuel Filler Cap remains open or fails to close.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1457 1996 Honda Civic Description
The EVAP control system leak detection method improves the accuracy and frequency of the detection by determining faulty components and vapor leakage for each part. The EVAP control system (from the purge valve to the fuel tank) is divided into two parts. One is the "EVAP Canister Side" (from the EVAP two-way valve to the purge valve) and the other is the "Tank Side" (from the EVAP two-way valve to the fuel tank). There is 0.04-inch leak detection and 0.02-inch leak detection. If the 0.04-inch leak detection results are OK, the 0.02-inch leak detection runs. The Diagnostic Trouble Code (DTC) P1457 is detected when the EVAP system has a very small leak.
What are the Possible Causes of the DTC P1457 1996 Honda Civic?
- Missing Fuel Filler Cap
- Incorrect Fuel Filler Cap used
- Fuel Filler Cap remains open or fails to close
- Foreign matter caught in the Fuel Filler Cap
- Faulty EVAP Two-Way Valve
- Faulty EVAP Bypass Solenoid Valve
- Faulty EVAP Canister
How to Fix the DTC P1457 1996 Honda Civic?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1457 1996 Honda Civic code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1457 1996 Honda Civic Code
1. What does the OBDII code P1457 mean on a 1996 Honda Civic?
P1457 indicates a leak or malfunction in the Evaporative Emissions Control (EVAP) system, specifically in the EVAP canister area.
2. What are the common symptoms of a P1457 code in a 1996 Honda Civic?
Symptoms include an illuminated check engine light, a possible fuel smell near the vehicle, and no noticeable driving performance issues.
3. What causes the P1457 code in a 1996 Honda Civic?
Common causes include a faulty EVAP canister vent shut valve, a damaged or loose gas cap, cracked or damaged EVAP hoses, or a malfunctioning purge control solenoid.
4. Can a loose or faulty gas cap trigger the P1457 code?
Yes, a loose or faulty gas cap can cause the EVAP system to detect a leak and trigger the P1457 code.
5. How can I fix the P1457 code on my 1996 Honda Civic?
Start by tightening or replacing the gas cap. If the code persists, inspect the EVAP canister, vent valve, and hoses for damage or leaks and repair or replace faulty components as necessary.
6. How do I check the EVAP canister system for leaks in a 1996 Honda Civic?
Inspect the canister, hoses, and valves for visible cracks or damage. A smoke test can also help identify small leaks in the EVAP system.
7. Is it safe to drive with the P1457 code on my 1996 Honda Civic?
Yes, it is generally safe to drive, but the issue may cause increased emissions, and the vehicle may not pass an emissions test until the problem is resolved.
8. How much does it cost to repair the P1457 code on a 1996 Honda Civic?
Repair costs vary depending on the issue. A gas cap replacement may cost $10–$30, while replacing an EVAP canister or valve can cost $100–$300 or more, including labor.
9. Can a P1457 code clear itself after fixing the issue?
If the issue is resolved, the code may clear after several drive cycles. Alternatively, you can use an OBDII scanner to manually clear the code.
10. Do I need a professional mechanic to fix the P1457 code on my 1996 Honda Civic?
While simple fixes like replacing the gas cap can be done yourself, diagnosing and repairing more complex EVAP system issues may require professional tools and expertise.
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