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Carmd code p0456 - Dodge Cars & Trucks

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I have engine codeB1342 and P0456


B1342 is not an engine code. P0456 is. Follow the link for more info. P0456 Evaporative Emissions System Small leak detected

B1342 is a manufacturer specific code so need to know make and model and year.

Oct 06, 2017 | Cars & Trucks

1 Answer

Are there any portable engine diagnostic devices, such as CarMD that are legitimate, work and are affordable, and if so, which ones do you recommend? Thank you!


With CarMD, you are not paying for the device, you are paying for the expertise of technicians who see what your device sees and provide you an explanation and recommended course of action to repair any problems, along with estimates on what a repair should cost.
You can buy code readers and scanners starting at under $50, but if you don't understand the meaning of diagnostic trouble codes (DTCs) or what you should be seeing with a scanner, it doesn't make too much difference whether you spend $50 or $1000.
I don't have CarMD, and know nothing more about them than what I see in their adverstisements, but it sounds good.
You could go to most auto parts stores, have them check your car for codes, and they will probably recommend you buying something that will 'fix it'. Or, you could have them give you the code(s) - get a print out or write them down. Then research yourself, or ask a knowledgeable friend for help.

May 19, 2017 | Cars & Trucks

1 Answer

2004 lincoln navigator evap system leak


The P0456 is not your cause here. If there are no other codes present other than the P0456, try unplugging the mass air flow sensor and see if the sputtering goes away and if so, replace the mass air flow sensor. You could also have a clogged fuel filter or a bad fuel pump (low pressure)

May 02, 2014 | Lincoln Navigator Cars & Trucks

1 Answer

I get a car md code of p0785.


Hi 2000 Volvo S70 owner,


This is Ivy Kao with CarMD.com Corp. I'm sorry to hear about the problem with your Volvo S70. In case you are not aware, CarMD employs a team of all ASE Certified Automotive Technicians to help answer customers' technical questions and it's free. Please feel free to contact us at 1-888-692-2763 (option 4) if you have any questions about your vehicle or CarMD report. Our ASE certified automotive technicians would be more than happy to help you!


Ivy Kao from CarMD.com Corp.

Sep 12, 2012 | 2000 Volvo S70

1 Answer

Code p0456


P0456 DODGE - EVAP System Small Leak
As you see form the list there is not a single problem that causes this code to set.
Possible causes- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking

Read more: http://engine-codes.com/p0456_dodge.html#ixzz1xQr2MVRf

Jun 10, 2012 | 2001 Dodge Stratus

1 Answer

My CarMD Report shows a P0442 Error Code on my 2002 Hyundai Accent GL My gas cap is on tight but, not sure about the seal. I have 8 possible causes from the CarMD Report. What do you...


Ouch. thats a tough one. Your fault code is for a small EVAP leak which is notoriously very hard to find. I would follow the most likely causes from the CarMD report. They are generally very accurate and based on input from technicians like myself. Remove your gas cap and inspect the seal around the cap. A leak as small as 0.02 inches will trigger the code you are getting. Literally some dust or debris could cause this. I would inspect the seal for cuts/tears and clean it. Replace the gas cap is the cheapest thing to try first and the likely culprit here. Check CarMD site for recalls and TSB's regarding EVAP leak as well. Good luck.

Nov 17, 2010 | Hyundai Accent Cars & Trucks

1 Answer

I have A carmd and just pulled A code PO420 what does that really mean? its A 1998 honda accord 4CYL


Hi There! After pulling the code from your CarMD did you plug in your CarMD device into your computer?
CarMD will search through their database with your specific make/model and the error code being generated.

Jun 28, 2010 | Cars & Trucks

2 Answers

2005 Dodge Grand Caravan codes P0456 and P0303. Engine light on. Changed Gas cap. Need to pass inspection. Please help with diagnosis.


p0456--emission control system leak(verysmall) leak, check all hoses to emission controls, cylinder 3 missfire detected. could be plugs, wires, or coil.this is code p0303,

Jun 04, 2009 | 2005 Dodge Grand Caravan

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