my check engine light came on a few days ago on my dodge stratus and i took it to advance and they gave me the code but i cant find what it means... the code is P0456... anyone have a clue???

Asked by Apr 20, 2010 at 11:48 AM about the Dodge Stratus

Question type: Maintenance & Repair

5 Answers

215

In the future - FYI - you don't even need to take your car to advance/autozone; etc... if you turn your key to on (not start) and off four times - it'll give you codes on the odometer - if there are none - it will show done. In re: P0456 is: P0456 - Evaporative Emissions System - Small leak detected Article by Dale Toalston ASE Certified Technician OBD-II Trouble Code Technical Description Evaporative Emissions System - Small leak detected What does that mean? The Powertrain Control Module (PCM) at different times performs various tests on the EVAP system. OBD II Enhanced EVAP systems are in place to keep fuel tank vapors from venting into the atmosphere, and instead purges them into the engine to be burned. Regular pressure tests are conducted by the PCM to monitor the sealed system for leaks. The PCM monitors the EVAP system pressure by watching the fuel tank pressure (FTP) sensor. When the sensor indicates a small leak in the EVAP system, this code is set. OBD-Codes.com on Facebook Potential Symptoms There will likely be no noticeable symptoms other than the Malfunction Indicator Lamp (MIL). This is because the EVAP system is a closed system and only controls fuel tank vapors, not engine management. Causes Usually this P0456 code is caused by an incorrect or faulty gas cap. Filling the fuel tank with the engine running could conceivable cause this code as well or if the cap wasn't properly tightened. Any of the following could also be the cause: * A small leak in any of the EVAP hoses or fuel tank hoses * A small leak in the purge valve or vent valve * The EVAP Canister may be leaking Possible Solutions First, using a scan tool activate the vent solenoid, sealing the system. Then monitor the fuel tank pressure (FTP) sensor. If the system is sealing properly, the number will stay consistent. If is isn't, the pressure sensor will show that as well. If the system slowly leaks, use a smoke machine and watch for smoke exiting the system at any EVAP component. Any where there is smoke exiting the system, that is the faulty component. Do not pressurize the EVAP system with air pressure. Doing so can damage the purge and vent solenoids in the system. Other EVAP DTCs: P0440 - P0441 - P0442 - P0443 - P0446 - P0453 - P0455 - P0456 I currently have the P0440 and 0041 on my 03 Stratus 2.4L - I'm thinking it's the gas cap -- so before I go into more costly diagnosis - I'm going to start and replace that. Good luck to ya!

19 out of 19 people think this is helpful.
90

I had the same code last week. Windward Dodge wanted $126 for diagnostic. I took my Stratus to J's Brake & Automotive in Punalu'u where we have our company vehicles maintained. He read the diagnostic, said that it's an emission problem where there's basically crud build-up in the exhaust, and recommended a can of "Sea Foam" with my next full tank of gas. Put it in the same night...and the light hasn't come back on since. I can feel the difference in how my car runs. Before you invest heavily in repairs, try a can of "Sea Foam"!!

9 out of 9 people think this is helpful.
120

i tried that and my check engine light is on. it sputters in drive shifting gears and it stalled on my mother too. but nothing came up when i tried the code thing. any idea?

11 out of 11 people think this is helpful.
20

ERG Valve needs replaced

1 out of 1 people think this is helpful.
20

MPR - Purge Valve

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Stratus

Looking for a Used Stratus in your area?

CarGurus has 1,159 nationwide Stratus listings starting at $700.

ZIP:

Search Dodge Stratus Questions

Dodge Stratus Experts

#1 Tom Demyan
Tom Demyan
Reputation 960
#2 Chris Daigle
Chris Daigle
Reputation 560
#3 curry22
curry22
Reputation 510
View All

Related Models For Sale

Used Chrysler Sebring
50 Great Deals out of 3,732 listings starting at $1,250
Used Chevrolet Impala
998 Great Deals out of 36,811 listings starting at $1,800
Used Nissan Altima
1,350 Great Deals out of 86,045 listings starting at $695
Used Dodge Charger
546 Great Deals out of 29,486 listings starting at $2,343
Used Ford Mustang
719 Great Deals out of 39,136 listings starting at $1,000
Used Dodge Avenger
233 Great Deals out of 5,712 listings starting at $2,250
Used Toyota Corolla
1,417 Great Deals out of 69,993 listings starting at $988
Used Toyota Camry
1,525 Great Deals out of 101,602 listings starting at $700
Used Ford Focus
1,301 Great Deals out of 60,647 listings starting at $1,295
Used Honda Accord
1,264 Great Deals out of 78,832 listings starting at $969
Used Dodge Intrepid
462 listings
Used Chevrolet Cobalt
77 Great Deals out of 4,988 listings starting at $1,000
Used Honda Civic
1,173 Great Deals out of 67,654 listings starting at $1,500
Used Dodge Neon
942 listings
Used Pontiac Grand Prix
31 Great Deals out of 3,796 listings starting at $1,195