Check engine code p0455 - 2007 Dodge Caravan SXT Minivan New Cars

Question edited for clarity. P codes for DTCs must have upper case P.

All questions need FULL 'year make model'.

White smoke is steam, and this is normal at this time of year and is mentioned on this website a LOT at this time of year. Gasoline has weather in it at molecular level and is burned off as steam.

P0300 unknown random misfire
P0303 Misfire on Cylinder 3
P0304 As above on 4

OBD-II Trouble Code - P0455

RepairPal.com https://repairpal.com > obd-ii-code-p0455
OBD-II code P0455 is a problem with an Evaporative Emission Control System Leak. Get expert information on fault code P0455.

P0455 Code: Evaporative Emission Control System Large ...

CarParts.com https://www.carparts.com > ... > OBD-II Trouble Codes
Aug 6, 2023 - Code P0455 is typically triggered when your vehicle's computer detects a large leak in the EVAP system. Symptoms of a P0455 include a lit check ... Videos

2:20
How to Fix P0455 Engine Code in 3 Minutes [2 DIY Methods ...
YouTube · nonda 2 minutes, 20 seconds
Oct 21, 2020

the error was resolved in the link below, please check the last post of Sith.

http://www.hyundai-forums.com/t28310-1997-elantra-code-p0455-help.htm

hope this will help you resolve th issue you have too.

large evap leak --check gas cap that it is on --look under truck at rear of fuel tank by spare tire and check the evap canister and hoses the following link will assist you
https://www.obd-codes.com/p0455 How to Fix Check Engine Light P0455 Emissions Purge Valve Replacement How to Fix Check Engine Light P0455 Emissions Purge Valve Replacement

Here's a link to your code.maybe try to reinstall the gas cap, http://www.obd-codes.com/p0455

p0 (USA fed. codes)
455
Evaporative System Malfunction, Gross Leak #1 DTC of all time.......
gas cap missing ,or loose or wrong cap
or any leak in the tank vent system.
tighten cap , reset ECU, drive 20miles, still there.>>>??

Google the codes

Lots to read & study

OBD2 PO401

OBD2 PO455

Think you will a repair shop to smoke the
Evap for the 455

What code ? P0442 or P0456 or p0455
DTC EVAP P0442 P0455 P0456
EVAP Leaks P0442 and P0455

Wells EVAP Training with Sgt Tech P0440 P0441 P0442 etc

P0455....Evaporative Emission Control System Leak Detected (gross leak
the first thin to check is your gas cap

P0455 Evaporative Emission Control System Leak Detected (gross leak) - check your entire engine bay contents for any type of leak, air conditioner when it's running, coolant, things like that.

P1684 Battery Disconnected Within Last 50 Starts - this is a code that will go away over time

A little late but check your gas cap first.

http://www.p0455.com