the 455 and 457 code u got is for evap.
go try to bang on the vmv valve because it may be stuck. that should fix it temporarily. and also check your gas cap for the 455. make sure its all the way on and none of the seals or anything are bad ..
P0455 - EVAP Control System Leak Detected (No Purge Flow or Large Leak)
Description:
The PCM monitors the complete EVAP control system for no purge flow, the presence of a large fuel vapor leak or multiple small fuel vapor leaks. The system failure occurs when no purge flow (attributed to fuel vapor blockages or restrictions), a large fuel vapor leak or multiple fuel vapor leaks are detected by the EVAP running loss monitor test with the engine running (but not at idle).
Possible Causes:
After-market EVAP hardware (such as fuel filler cap) non-conforming to required specifications
Disconnected or cracked fuel EVAP canister tube, EVAP canister purge outlet tube or EVAP return tube
EVAP canister purge valve stuck closed
Damaged EVAP canister
Damaged or missing fuel filler cap
Insufficient fuel filler cap installation
Loose fuel vapor hose/tube connections to EVAP system components
Blockages or restrictions in fuel vapor hoses/tubes (items also listed under disconnections or cracks)
Fuel vapor control valve tube assembly or fuel vapor vent valve assembly blocked
Canister vent (CV) solenoid stuck open
Mechanically inoperative fuel tank pressure (FTP) sensor
Diagnostic Aid:
Check for audible vacuum noise or significant fuel odor in the engine compartment or near the EVAP canister and fuel tank.
P0457 - EVAP Control System Leak Detected (Fuel Filler Cap Loose/Off)
Description:
A fuel tank pressure change less than a minus (-) 7 inches of H 2 0 in 30 seconds has occurred after refueling; or there is excessive purge (fuel vapor) flow greater than 0.06 pounds per minute.
Possible Causes:
Fuel filler cap not installed on refueling (storing continuous memory DTC).
Fuel filler cap missing, loose or cross-threaded.
Diagnostic Aid:
Check for missing fuel filler cap or integrity of the cap. If OK, clear continuous memory DTCs and re-initiate EVAP Emission Running Loss Monitor Drive Cycle.
What is the WMV valve? As far as I know the EVAP systems is comprised by the fuel tank mounted or in-line fuel vapor control valve, the fuel vapor vent valve, and the EVAP canister purge valve.
What is the WMV valve? As far as I know the EVAP systems is comprised by the fuel tank mounted or in-line fuel vapor control valve, the fuel vapor vent valve, and the EVAP canister purge valve.
Thanks a lot El_kid !!!
I'm gonna get a new gas cap and see if it fix the thing. will the codes disappear when i change the cap or just I still need to reset the codes (ie unplugg the battery)?
wmv: I was referring to a post above, dunno what it is either....
Thanks a lot El_kid !!!
I'm gonna get a new gas cap and see if it fix the thing. will the codes disappear when i change the cap or just I still need to reset the codes (ie unplugg the battery)?
wmv: I was referring to a post above, dunno what it is either....