P1778 Ford Auto Trouble Code
Parts or components should not be replaced with reference to only a P1778 Ford DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.
Evaporative emissions systems test for a leak in the fuel tank and associated hoses. To perform the test, the computer pulls a vacuum and checks to see if the vacuum holds. Each car maker uses a different techniques to check, but most often it's some type of fuel tank pressure sensor.
P1778 Ford Possible Solution:
Air Conditioning Pressure Sensor (ACP) Insufficient Pressure Change Each time the A/C clutch engages, the PCM is looking for a pressure change in the refrigerant. If the change in pressure is outside of the calibration the DTC will set. A/C system mechanical failure Open ACP or VREF circuit A/C sensor damaged A/C system electrical failure A/C clutch always engaged Verify A/C system function, including refrigerant charge.
P1778 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
P1778 Ford Trouble Repair :
The rule of P1778 Ford code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example. Likewise, overriding the OBD 2 system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.
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