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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