B3621 Ford Auto Trouble Code
B3621 Ford OBD2 may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.
The computer notices the canister is empty when it detects a leaner condition (all the vapors are used up) and it resumes normal fuel delivery. Some car manufacturers then close the vent solenoid but leave the purge solenoid open. That creates a vacuum throughout the entire fuel storage system. Once the correct vacuum is reached, it closed the purge solenoid and waits to see if the vacuum holds.
B3621 Ford Possible Solution:
Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.
B3621 Ford Description For All Models :
- Ford 021
- Ford 2000
- Ford 24.7
- Ford 427
- Ford 49
- Ford Aero
- Ford Aerostar
- Ford Anglia
- Ford Artic
- Ford Aspire
- Ford Ba Falcon
- Ford Bantam
- Ford B-max
- Ford Bronco
- Ford C
- Ford Capri
- Ford C-max
- Ford C-max Ii
- Ford Coin
- Ford Comete
- Ford Concept
- Ford Consul
- Ford Contour
- Ford Corcel
- Ford Corsair
- Ford Cortina
- Ford Cougar
- Ford Country
- Ford Courier
- Ford Crestline
- Ford Crown Victoria
- Ford Custom
- Ford De Luxe
- Ford Desert
- Ford E-150
- Ford E-250
- Ford E-350
- Ford Econoline
- Ford Econovan
- Ford Ecosport
- Ford Ecosport 2
- Ford Edge
- Ford Equator
- Ford Escape
- Ford Escape 2
- Ford Escape 3
- Ford Escort
- Ford E-series
- Ford Everest
- Ford Excursion
- Ford Expedition
- Ford Expedition 2
- Ford Expedition 3
- Ford Explorer
- Ford Explorer Ii
- Ford Explorer Iii
- Ford Explorer Iv
- Ford Explorer V
- Ford Extreme
- Ford F
- Ford F150
- Ford F-150
- Ford F250
- Ford F-250
- Ford F-350
- Ford F-450
- Ford F-650
- Ford Fairlane
- Ford Fairmont
- Ford Falcon
- Ford Festiva
- Ford Fiesta
- Ford Fiesta 7
- Ford Five Hundred
- Ford Flex
- Ford Focus
- Ford Focus 3
- Ford Fpv
- Ford Fpv Gt-p
- Ford Freestar
- Ford Freestyle
- Ford Fusion
- Ford Fusion (us)
- Ford Galaxie
- Ford Galaxy
- Ford Galaxy Ii
- Ford Gran Torino
- Ford Granada
- Ford Gt
- Ford Husky
- Ford Ikon
- Ford Indigo
- Ford Interceptor
- Ford Ka 2
- Ford Ka
- Ford Kuga
- Ford Kuga 2
- Ford Laser
- Ford Libre
- Ford Limited
- Ford Lotus
- Ford Lotus-cortina
- Ford Ltd
- Ford Lynx
- Ford M350
- Ford Maverick
- Ford Megastar
- Ford Mercury
- Ford Meteor
- Ford Model Akt
- Ford Monarch
- Ford Mondeo
- Ford Mondeo 2
- Ford Mondeo 3
- Ford Mondeo 4
- Ford Mustang
- Ford Mustang 4
- Ford Mustang 5
- Ford Mustang 6
- Ford Orion
- Ford Pilot
- Ford Pinto
- Ford Popular
- Ford Prefect
- Ford Probe
- Ford Probe Gt
- Ford Puma
- Ford Quadricycle
- Ford Racing
- Ford Ranch
- Ford Ranchero
- Ford Ranger
- Ford Royale
- Ford Rs
- Ford Scorpio
- Ford Shelby
- Ford Sierra
- Ford Skyliner
- Ford S-max
- Ford S-max 2
- Ford Sportka
- Ford St
- Ford Station
- Ford Street Ka
- Ford Svt
- Ford Taunus
- Ford Taurus
- Ford Telstar
- Ford Tempo
- Ford Ten
- Ford Territory
- Ford Think
- Ford Thunderbird
- Ford Tickford
- Ford Tl50
- Ford Tonka
- Ford Torino
- Ford Tourneo Connect
- Ford Tracer
- Ford Transit
- Ford Transit 3
- Ford Transit 4
- Ford Transit Courier
- Ford Trend
- Ford Triton
- Ford Ts50
- Ford Urban
- Ford V-8
- Ford Van
- Ford Vedette
- Ford Vendome
- Ford Versailles
- Ford Visos
- Ford Wagon
- Ford Wind
- Ford Windstar
- Ford Xl
- Ford Zephyr
- Ford Zodiac
- Ford Zx2
B3621 Ford Trouble Repair :
If your vehicle failed a B3621 Ford test and the B3621 Ford Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.
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