Question about 1996 Ford Thunderbird LX

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P1443 1. failed evap pressure sensor 2. blocked hose between purge valve and ftp sensor 3. evap purge valve stuck closed what would be the best guess1996 ford thunder bird v8

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Trouble shoot P1443 99 ford explorer 4 liter 6 . failed evap pressure sensor. blocked hose between purge valve &fip sensor. evap purge valve stuck closed. where are these sensors and whats the fix?

Posted on Dec 18, 2010

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The purge sensor is located behind the passenger headlight assembly. Remove the headlight, locate the purge sensor and follow and inspect the vacuum hoses for cracks or softness(they could collapse under vacuum blocking the system) to their termination points. If possible, energize the purge valve with the connector removedusing required voltage to ensure it functions correctly when utilized by the EVAP system

Posted on Nov 04, 2011

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Code reading is 1447 is it the same as 1440?


No these are 2 different fault codes, although they are related to the same system
EVAP control system does not operate properly.
- EVAP control system has a leak in the line between intake manifold and EVAP control system pressure sensor.

Possible causes include ...
- EVAP canister purge volume control solenoid valve stuck closed.
- EVAP control system pressure sensor and its circuit.
- Loose, disconnected, or improper connection of rubber tube.
- Blocked rubber tube.
- Blocked or bent rubber tube to MAP/BARO switch solenoid valve.
- Cracked EVAP canister.
- EVAP canister purge volume control solenoid valve.
- Closed Throttle Position Switch.
- Improper connection of one-way valve.
- Blocked purge port.
- EVAP canister vent control valve.

Nov 02, 2016 | Cars & Trucks

1 Answer

2007. What are the probable causes of DTC P0446?


DTC P0446: Evaporative Emissions (EVAP) Vent System Performance
Circuit/System Description
This DTC tests the evaporative emission (EVAP) system for a restricted or blocked EVAP vent path. The control module commands the EVAP canister purge solenoid valve Open and the EVAP canister vent solenoid valve Closed. This allows vacuum to be applied to the EVAP system. Once a calibrated vacuum level has been reached, the control module commands the EVAP canister purge solenoid valve Closed and the EVAP canister vent solenoid valve Open. The control module monitors the fuel tank pressure (FTP) sensor for a decrease in vacuum. If the vacuum does not decrease to near 0 inch H2O in a calibrated time, this DTC sets.
Diagnostic Aids
?€¢
An intermittent condition could be caused by a damaged EVAP vent housing, a temporary blockage at the EVAP canister vent solenoid valve inlet, or a pinched vent hose. A blockage in the vent system will also cause a poor fuel fill problem.


?€¢
An EVAP canister, vent hose, or vent solenoid valve that has restricted flow may cause this DTC to set. Using a purge solenoid command with a scan tool will allow vacuum to be applied to the system instead of pressure. With the engine running, the EVAP canister vent solenoid valve open, and the EVAP canister purge solenoid valve commanded to 100 percent, the fuel tank vacuum should not increase to more than 5 inches H2O.


?€¢
An EVAP canister filter that is restricted can cause this DTC to set. Refer to Evaporative Emission Canister Replacement .


?€¢
Disconnecting one component at a time while the EVAP system is under flow will help to pinpoint a restriction in the system


Do you have a scan tool that reads data PID'S ?
Your FTP - fuel tank pressure sensor could be at fault !

    Ignition ON and fuel cap removed, verify that the FTP sensor parameter is between 1.3-1.7 volts. ?‡'
    If not within the specified range, go to the FTP sensor section in Circuit/System Testing.

  1. Install the fuel cap.
  2. With the engine running, the EVAP canister vent solenoid valve open, and the EVAP canister purge solenoid valve commanded to 100 percent, the fuel tank vacuum should not increase to more than 12 inches H2O.
?‡'
If the fuel tank vacuum is greater than the specified range, go to the restriction section in Circuit/System Testing.



If

Sep 06, 2015 | Chevrolet Impala Cars & Trucks

1 Answer

Two codes


code p1443 - Evap canister purge system mafunction.possible cause faulty Evap canister purge valve.fuel vapor hose blocked between Evap purge valve and the FTP sensor or blocked between purge valve and intake manifold or vacuum hose blocked between purge valve and intake manifold.code po430 catalytic system efficiency bank 2 below threshold.possible causes. air leaks at the exhaust manifold or in the exhaust pipes. catalytic converter is damaged.ECT OR CHT SENSOR has lost its calibration.engine cylinders misfiring or the ignition timing off.engine oil is contaminated.front HO2S or rear HO2S is contaminated with fuel or moisture.both front HO2S OR REAR HO2S is loose in mounted hole. fuel pressure is too high due to faulty fuel pressure regulator.

Jan 02, 2013 | 1996 Ford Thunderbird LX

1 Answer

I got a 1996 ford thunderbird 6 cly and the problem is a p1443 i need to know what i do to fix this or even if it is worth fixing and a est about how much it would cost thank you


CODE P1443 - LOW PURGE FLOW OR NO PURGE FLOW CONDITION DETECTED.POSSIBLE CAUSES EVAP CANISTER PURGE VALVE STUCK CLOSED MECHANICALLY FUEL VAPOR HOSE BLOCKED BETWEEN EVAP PURGE VALVE AND THE FTP SENSOR OR BLOCKED BETWEEN PURGE VALVE AND INTAKE MANIFOLD OR VACUUM HOSE BLOCKED BETWEEN PURGE VALVE AND INTAKE MANIFOLD.CANT GIVE PRICE CHECK UNTIL FIND OUT THE PROBLEM.

May 04, 2011 | 1996 Ford Thunderbird LX

2 Answers

Ford escort wagon 1997 code p1443 displayed. what does this indicate & where is the cannister? thank you.


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.

    Jan 18, 2011 | Ford Escort Cars & Trucks

    1 Answer

    Obd-2 code p1455


    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.

    Jul 19, 2010 | 1996 Ford Explorer

    2 Answers

    What is he code 455 for a 2006 hyundai sonata means


    CODE PO455 EVAPORATIVE EMISSION SYSTEM LARGE LEAK DETECTED.POSSIBLE CAUSES CANISTER VENT SOLENOID MAY BE STUCK IN OPEN POSITION / EVAP CANISTER TUBE EVAP CANISTER PURGE OUTLET TUBE OR EVAP RETURN TUBE DISCONNECTED OR CRACKED OR CANISTER IS DAMAGED / EVAP CANISTER PURGE VALVE STUCK CLOSED OR CANISTER DAMAGED / FUEL FILLER CAP MISSING LOOSE NOT TIGHT OR THE WRONG PART / FUEL VAPOR HOSES TUBES BLOCKED OR RESTRICED OR FUEL VAPOR CONTROL VALVE TUBE OR FUEL VAPOR VENT VALVE ASSEMBLY BLOCKED /FUEL TANK PRESSURE SENSOR HAS FAILED MECHANICAL FAULT /FUEL TANK CONTROL VALVE IS CONTAMINATED DAMAGED OR HAS FAILED.

    Oct 21, 2009 | 2006 Hyundai Sonata

    1 Answer

    Im getting a P0441 EVAP emission control system purge flow fault code on my 2002 dodge neon


    Here is what I could find for your code error as potential causes:
    After market parts and accessories nonconforming to the EVAP system specifications.
    Damaged, missing or improperly installed fuel filler cap.
    Blockage in fuel vapor hoses/tubes (EVAP canister tube, EVAP canister purge outlet tube or EVAP return tube) in EVAP system.
    Disconnected or cracked fuel vapor hoses/tubes in EVAP system.
    EVAP canister purge valve stuck closed.
    Canister vent (CV) solenoid stuck open.
    Fuel tank pressure (FTP) sensor malfunction.
    EVAP canister leaking.
    Fuel vapor control valve tube assembly blocked.
    Fuel vapor vent valve assembly blocked.

    Obviously the gas cap would be the easiest and cheapest thing to fix.  Just make sure it is put on correctly and tight.  If it is not that, I would have to suggest to take it to a mechanic because the other problems on that list are not really DIY material.  Hopefully it is the gas cap and you can take care of it yourself.  Good luck.

    May 17, 2009 | 2002 Dodge Neon

    2 Answers

    Check Engine Light


    Ok i have the same make and model car.And had same problem but i was only needing new hoses. thwe code reader will not tell you if they are bad you just have to check this. The purge valve and canister is located under hood on passenger side behind bumper. look behind the light through the openings. You have to raise car up and do the repairs from under the bottom of the bumper.On passenger side under hood above the wheel fender and between the engine you will see a emmision line about the size of a pencil leads to the purge valve. the valve cost about $18.00 and canister cost around $75.00 at auto zone. The canister is the square box and sometimes you can take apart and clean it and put back together and it should work fine.

    Jun 29, 2008 | 1996 Mercury Cougar XR7

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