I replaced evap senser,purge valve, and mass air senser. I took it to a mechanic multiple times can't find anything wrong with it. Its comes up evap code and he clears it.

Evaporative Emission Canister Purge Solenoid Valve Replacement
Removal Procedure
Remove the air cleaner assembly from the studs and reposition to the side.
Disconnect the evaporative emission (EVAP) canister purge valve electrical connector (1).
Disconnect the EVAP canister purge valve tube from the intake manifold. Refer to Plastic Collar Quick Connect Fitting Service.
Disconnect the chassis EVAP vapor line from the EVAP canister purge valve. Refer to Plastic Collar Quick Connect Fitting Service.
Remove the EVAP canister purge valve bracket bolt.
Remove the EVAP canister purge valve with bracket.
Remove the EVAP canister purge valve from the bracket.
Inspect for carbon release in the EVAP canister purge valve ports. If there is any loose carbon, replace the EVAP canister and any components necessary to remove the carbon particles.
Installation Procedure
Install the EVAP canister purge valve to the bracket.
Position the EVAP canister purge valve with bracket to the cylinder head.
Caution: Refer to Fastener Caution.
Install the EVAP canister purge valve bracket bolt.
Tighten:
Tighten the bolt to 18 [n-m] (13 lb ft).
Connect the EVAP canister purge valve tube to the intake manifold. Refer to Plastic Collar Quick Connect Fitting Service.
Connect the chassis EVAP vapor line to the EVAP canister purge valve. Refer to Plastic Collar Quick Connect Fitting Service.
Connect the EVAP canister purge valve electrical connector (1).
Position the air cleaner assembly and install onto the studs.

P0411 - Secondary Air Injection (AIR) system upstream flow The secondary air injection system does not detect the presence of air in the exhaust when introduced by the secondary air injection system.

• AIR bypass solenoid circuit open.
• AIR bypass solenoid leaking/blocked or stuck open/closed.
• Electric AIR pump - no/low air flow.
• AIR diverter valve leaking/blocked or stuck open/closed.
• AIR air hoses restricted or leaking.
• AIR vacuum hoses restricted or leaking.

In order to test the AIR pump, it must be capable of driving the HO2S lean.
A single electrical circuit open, such as an AIR bypass solenoid, in this multi-component circuit will not be detected by a PCM output driver circuit, yet it will create DTC P0411.
P0455 - EVAP Control System Leak Detected (No Purge Flow or Large Leak) 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. 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).

• 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 the EVAP system components.
• Blockages or restrictions in the 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.

Check for audible vacuum noise or significant fuel odor in the engine compartment or near the EVAP canister and fuel tank.
P0480 - Cooling Fan Electrical Malfunction
Variable Speed Electric Cooling Fan This test checks the Fan Control - Variable (FCV) output circuit. The DTC sets if the PCM detects the voltage on the FCV circuit is not within the expected range.

• FCV circuit open or shorted.
• B+ or ground circuit fault to cooling fan.
• VPWR open to cooling fan (if applicable).
• Damaged cooling fan module.
• PCM damaged.

During the KOEO self-test, the cooling fan is cycled on and off.
P0660 - Intake Manifold Tuning Valve (IMTV) Control Circuit Open - Bank 1 The IMTV system is monitored for failure during continuous, KOEO, or KOER self-tests. The test fails when the signal on the monitor pin is more or less than an expected calibrated range.

• IMTV signal circuit open, shorted to PWR GND or SIG RTN.
• Damaged IMTV actuator.
• Damaged PCM.

An IMTVM PID reading may indicate a fault if available.

code p 0306 is --misfire on no 6 cylinder ===causes injector wiring ---ht leads , coil
code p 0449 is EVAP purge valve --circuit malfunction ===causes --wiring--EVAP canister purge valve --ECM and code p 0068 is MAP ( manifold pressure )sensor ( mass air flow sensor (MAF)---throttle position correlation===causes --wiring--MAP/MAF sensor--mechanical fault
could be a common wiring harness plug connection or loose connections on the ECM

If it is running fine live with it. Other wise I would check the mass air flow sensor maybe?

code p0441 refers to evaporative emission EVAP system-incorrect flow detected===causes hose connections--intake leak---EVAP canister purge valve
Po144 refers to the same fault and causes
Po446 refers to EVAP system--vent control-circuit malfunction===causes --wiring---EVAP canister purge valve---ECM In all cases codes the canister purge valve gets a mention and then the ECM. I would take it back and ask that the canister purge valve be changed or even ask for a new canister as there are occasions when filling the tank to the filler hole will induce fuel into the canister causing it to malfunction.

P1443 - EVAP Control System / Vacuum System Purge Control Solenoid Or Purge Control Valve Fault. A fuel tank pressure change greater than minus (-) 7 inches of water in 30 seconds occurred with a purge (fuel vapor) flow at less than 0.02 pounds per minute.

Possible Causes:

Blocked fuel vapor hose between the EVAP canister purge valve and the FTP sensor.

Blocked fuel vapor hose between the EVAP canister purge valve and the engine intake manifold.

Blocked vacuum hose between the EVAP canister purge valve solenoid and the engine intake manifold.

EVAP canister purge valve stuck closed (mechanically).

Possible Solution:
Check for blockages between the fuel tank, the EVAP canister purge valve, and the engine intake manifold. Check for obstructions in the EVAP canister purge valve diaphragm and ports.

The canister is on the passengers side near the firewall if I recall correctly.

Which code specifically? Do not assume you need a new solenoid. Our recommendation will depend on the specific code and some troubleshooting results. I usually recommend checking over all the EVAP vacuum lines and the gas cap too whenever there is a purge valve code. Check the vacuum lines at the cannister in the left rear bumper. I will paste info on the purge solenoid below.

P0440 Evaporative emission (EVAP) system - malfunction

Possible causes: Hose connection(s), intake leak, EVAP canister purge valve

P0441 Evaporative emission (EVAP) system - incorrect flow detected

Possible causes: Hose connection(s), intake leak, EVAP canister purge valve

P0442 Evaporative emission (EVAP) system - small leak detected

Possible causes: Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve

P0443 Evaporative emission (EVAP) canister purge valve - circuit malfunction

Possible causes: Wiring, EVAP canister purge valve, ECM

P0444 Evaporative emission (EVAP) canister purge valve -open circuit

Possible causes: Wiring open circuit, EVAP canister purge valve, ECM

P0445 Evaporative emission (EVAP) canister purge valve -short circuit

Possible causes: Wiring short circuit, EVAP canister purge valve, ECM

P0450 Evaporative emission (EVAP) pressure sensor - circuit malfunction

Possible causes: Wiring, EVAP pressure sensor, ECM

P0455 Evaporative emission (EVAP) system - large leak detected

Possible causes: Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve

P0456 Evaporative emission system - very small leak detected

Possible causes: Mechanical fault, hose connection(s), EVAP pressure "sensor

P0457 Evaporative emission system - leak detected (fuel cap loose/off)

Possible causes: Mechanical fault, hose connection(s), EVAP pressure sensor

P0458 Evaporative emission system, purge control valve -circuit low

Possible causes: Wiring short to earth, EVAP valve

P0459 Evaporative emission system, purge control valve -circuit high
Possible causes: Wiring short to positive, EVAP valve

Evaporative Emission Purge Solenoid

Description & Operation
The duty cycle EVAP canister purge solenoid (DCP) regulates the rate of vapor flow from the EVAP canister to the intake manifold. The Powertrain Control Module (PCM) operates the solenoid.
During the cold start warm-up period and the hot start time delay, the PCM does not energize the solenoid. When de-energized, no vapors are purged. The PCM de-energizes the solenoid during open loop operation.
The engine enters closed loop operation after it reaches a specified temperature and the time delay ends. During closed loop operation, the PCM cycles (energizes and de-energizes) the solenoid 5 or 10 times per second, depending upon operating conditions. The PCM varies the vapor flow rate by changing solenoid pulse width. Pulse width is the amount of time that the solenoid is energized. The PCM adjusts solenoid pulse width based on engine operating condition.
Removal & Installation
The duty cycle evaporative (EVAP) canister purge solenoid is located in the engine compartment near the brake master cylinder.

1. Disconnect electrical connector at solenoid.
2. Disconnect vacuum lines at solenoid.
3. Lift solenoid slot from mounting bracket for Removal & Installation.

To Install:

1. Position solenoid slot to mounting bracket.
2. Connect vacuum lines to solenoid. Be sure vacuum lines are firmly connected and not leaking or damaged. If leaking, a Diagnostic Trouble Code (DTC) may be set with certain emission packages.
3. Connect electrical connector to solenoid.
   

Purge solenoid location:


EVAP cannister location:

DTC P1455 - Substantial Leak or Blockage in Evaporative Emission Control System

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).

Check this 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


Check for audible vacuum noise or significant fuel odor in the engine compartment or near the EVAP canister and fuel tank

Tell us news.

maybe a fuse is blown? did you have the mechanic check the fuses? or even check all your relays and wiring?

no
it is more likely that the problem is in the EVAP system
code p 0455 refers to evaporative emission(EVAP)system---large leak detected ====causes --hose connections ---intake leak---EVAP cannister---EVAP canister purge valve
I would suggest to you to tell the mechanic to replace the EVAP purge valve as the problem is more likely to be that than the fuel tank