P0451 Chrysler Code - Fuel Tank Pressure Sensor Range/Performance
Quick Answer
The Fuel Tank Pressure (FTP) pressure sensor detects pressure in the purge line. Common causes include Fuel Tank Pressure Sensor, Fuel Tank Pressure sensor harness is open or shorted, Fuel Tank Pressure sensor circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P0451 Chrysler indicates Fuel Tank Pressure Sensor Range/Performance.
- Common causes
- Common causes include Fuel Tank Pressure Sensor, Fuel Tank Pressure sensor harness is open or shorted, Fuel Tank Pressure sensor circuit poor electrical connection.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code P0451 Chrysler Description
What are the Possible Causes of the DTC P0451 Chrysler?
- Fuel Tank Pressure Sensor
- Fuel Tank Pressure sensor harness is open or shorted
- Fuel Tank Pressure sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0451 Chrysler?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0451 Chrysler 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.
Need more information about the P0451 Chrysler code?
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Frequently Asked Questions about P0451 Chrysler Code
1. What does the OBDII code P0451 mean on a Chrysler?
P0451 indicates a problem with the fuel tank pressure sensor, specifically that its signal is outside the expected range or performance parameters.
2. What are the common symptoms of code P0451 in a Chrysler vehicle?
Symptoms may include an illuminated check engine light, difficulty refueling, decreased fuel efficiency, or a noticeable fuel odor due to EVAP system issues.
3. What causes the P0451 code to appear in a Chrysler?
Common causes include a faulty fuel tank pressure sensor, damaged wiring or connectors, a clogged EVAP vent valve, or a leak in the EVAP system.
4. Can I drive my Chrysler with a P0451 code?
While the vehicle may still be drivable, prolonged use with this code can lead to increased emissions and potential fuel system issues. It's best to address it promptly.
5. How do you diagnose a P0451 code in a Chrysler?
Diagnosis typically involves scanning for additional codes, inspecting the fuel tank pressure sensor and its wiring, and performing a smoke test to check for EVAP system leaks.
6. How do I fix the P0451 code on my Chrysler?
Repairs may include replacing the fuel tank pressure sensor, fixing damaged wiring or connectors, cleaning or replacing the EVAP vent valve, or sealing leaks in the EVAP system.
7. How much does it cost to fix a P0451 code on a Chrysler?
Repair costs vary but typically range from $150 to $400, depending on whether the issue is a sensor replacement or a more complex EVAP system repair.
8. Can a loose gas cap cause the P0451 code in a Chrysler?
While a loose gas cap is a common EVAP system issue, it is unlikely to directly cause P0451. However, it’s still a good idea to check and tighten the gas cap as part of diagnostics.
9. Will the P0451 code clear itself after a repair?
If the issue is resolved, the code may clear after several drive cycles. Alternatively, you can use an OBDII scanner to clear it manually.
10. What happens if the P0451 code is ignored in a Chrysler?
Ignoring this code can lead to increased emissions, potential drivability issues, and difficulty passing emissions tests in regions that require them.
Discuss the causes and fixes for P0451 Chrysler OBDII Code
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P0451 on Chrysler Crossfire - During driving on Highway with opened Spoiler the Reserve-Light of the Fuel turned on. A few minutes later i reduced the Speed under 60 km/h, but the Spoiler showed no reaction. At home i tried to close the Spoiler manual - but no reaction. I filled up the fueltank and checked the system with an OBD II scanner. I found P0451 and cleared the code - but no reaction by the spoiler. It is not possible to close the spoiler, the fuse ist ok. My car: 2005er Crossfire Coupe alabaster-white, US-Model, reimportet to Germany.
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The P0451 code was definitely set because the fuel level got too low, but it should have nothing to do with the spoiler. I honestly never had that problem with the spolier before and there is no information in the manuals either. My only suggestion is to disconnect the car battery for a few minutes to try reset all the systems.
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