I was drivin today and all of a sudden my check enging light comes on..I got the code from autozone and it said

p1456
Evap" emission control sys leake detected
(gross leak/no flow)
p1456
fuel tank temperature sensor circuit malfunction.
what should i do.

 

Is your gas cap tight?

 

well im not sure if your beign sarcastic or not but i actually have been having problems with my gas cap. it doesnt really srew on correctly

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackhope121 &raquo;</TD></TR><TR><TD CLASS="quote">well im not sure if your beign sarcastic or not but i actually have been having problems with my gas cap. it doesnt really srew on correctly</TD></TR></TABLE>

And the problem is found. Try getting a new gas cap and that should remove the CEL.

 

Code P1456 means that your vehicle is failing to contain/hold the gas vapors in the gas tank.

If your gas cap doesn't screw on tight, more than likely thats the cause of the cel.

 

i just tried using a friends gas cap and drove around the block with it... CEL is still on. This sucks

 

did you reset the ecu yet? If not, disconnect the power wire from battery, turn headlights on until they die, reconnect battery. Then try and see if the cel comes back.

 

Did you reset the ecu and do a drive cycle?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IHateJDM &raquo;</TD></TR><TR><TD CLASS="quote">did you reset the ecu yet? If not, disconnect the power wire from battery, turn headlights on until they die, reconnect battery. Then try and see if the cel comes back.</TD></TR></TABLE>

Don't unplug the battery, then you reset clock radio etc. Just pull the ECU fuse under the hood for about 30 seconds. Then start your car and let it idle for about 10 minutes.