Question about 1998 Dodge Ram

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Code P1456????? I've got a 98 ram 1500, 5.2 L, 118,000 miles. won't start unless I puss accelerator petal to floor, then it runs rough. ran Diag. scan and came up with code of P1456. I'm told this code does not exist. ran scan agian and got same code. says Evaporative Emissions Control System (evap) leakage. (fuel Tank system) What is this and how can I repair this problem? Dan

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  • Dodge Master
  • 66,248 Answers

Check your gas cap . and make sure you double click it every time.some systems do not like it when we TOP the tank to over full too

Posted on Jan 16, 2018


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6ya staff

  • 2 Answers


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Posted on Jan 02, 2017



  • 4 Answers

SOURCE: 1999 Dodge Caravan running rough at idle and lack of acceleration

Here are a few things to check that aren't that exspencive to do. check you'r o2 scener and the map scencer.try tapping on the cadiletice convertor to see if can hear any rattling if there is any rattliling the cadiletice converter could be clogged and will need to be replaced.You can also have the emission control module tested to see if it working properly.

Posted on Feb 10, 2009


Steve Allison

  • 5569 Answers

SOURCE: Evaporative emission system - small leak/no BB flow condition

Although I recommend you buy a Haynes service manual for your Dodge, I think you will find the canister attached to the firewall or one of the fender wells. Most of them look a lot like an overgrown spam can and it will have two connections on it.

Posted on Mar 06, 2009



  • 85223 Answers

SOURCE: I did have the code p0443 and I replace the purge

check the carbon canister for dirt or just replace it.

Posted on Apr 11, 2009


Ronny Bennett Sr.

  • 6927 Answers

SOURCE: the idle air control valve

if it is not running,and wont start,pull the idle air control and look at it,,is it stuck all the way out? if so this is ur problem

Posted on Jul 05, 2009

Car Fixer

  • 184 Answers

SOURCE: P0441 Evap control system purge flow fault

Posted on Sep 05, 2009

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