B3747 Volkswagen Auto Trouble Code
B3747 Volkswagen OBD2 specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.
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.
B3747 Volkswagen Possible Solution:
Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.
B3747 Volkswagen Description For All Models :
- Volkswagen 1200
- Volkswagen 1300
- Volkswagen 1302
- Volkswagen 1303
- Volkswagen 1500
- Volkswagen 1600
- Volkswagen 181
- Volkswagen 1-litre
- Volkswagen 411
- Volkswagen Aac
- Volkswagen Amarok
- Volkswagen Arteon
- Volkswagen Atlas
- Volkswagen Beetle
- Volkswagen Bora
- Volkswagen Brasilia
- Volkswagen Cabriolet
- Volkswagen Caddy
- Volkswagen Caddy 2
- Volkswagen Caddy 3
- Volkswagen Caddy 4
- Volkswagen California
- Volkswagen Caravelle
- Volkswagen Citi
- Volkswagen Commercial
- Volkswagen Concept
- Volkswagen Corrado
- Volkswagen Crafter
- Volkswagen Crafter Ii
- Volkswagen Crossgolf
- Volkswagen Crosspolo
- Volkswagen Crosstouran
- Volkswagen Derby
- Volkswagen Ea
- Volkswagen Ecoracer
- Volkswagen Eos
- Volkswagen Eurovan
- Volkswagen Export
- Volkswagen Fox
- Volkswagen Fusca
- Volkswagen Gli
- Volkswagen Gol
- Volkswagen Gol Ii
- Volkswagen Golf 3
- Volkswagen Golf 4
- Volkswagen Golf 5
- Volkswagen Golf 6
- Volkswagen Golf 7
- Volkswagen Golf 1
- Volkswagen Golf 2
- Volkswagen Gti
- Volkswagen Gx3
- Volkswagen Hac
- Volkswagen Iltis
- Volkswagen Jetta
- Volkswagen Jetta A4
- Volkswagen Jetta A5
- Volkswagen Jetta A6
- Volkswagen K70
- Volkswagen Karmann Cheetah
- Volkswagen Karmann Ghia
- Volkswagen Kombi
- Volkswagen Lt
- Volkswagen Lupo
- Volkswagen Magellan
- Volkswagen Microbus
- Volkswagen Multivan
- Volkswagen New Beetle
- Volkswagen Parati
- Volkswagen Passat
- Volkswagen Passat B5
- Volkswagen Passat B6
- Volkswagen Passat B7
- Volkswagen Passat B8
- Volkswagen Phaeton
- Volkswagen Pickup
- Volkswagen Pointer
- Volkswagen Polo
- Volkswagen Polo 4
- Volkswagen Polo 5
- Volkswagen Quantum
- Volkswagen Rabbit
- Volkswagen Santana
- Volkswagen Saveiro
- Volkswagen Schwimmwagen
- Volkswagen Scirocco
- Volkswagen Scooter
- Volkswagen Sedan
- Volkswagen Sharan
- Volkswagen Sharan 2
- Volkswagen Sp2
- Volkswagen T4
- Volkswagen T5
- Volkswagen T6
- Volkswagen Tiguan
- Volkswagen Touareg
- Volkswagen Touran
- Volkswagen Touran I
- Volkswagen Touran Ii
- Volkswagen Touran Iii
- Volkswagen Transporter
- Volkswagen T-roc
- Volkswagen Type 3
- Volkswagen Type 4
- Volkswagen Up
- Volkswagen Vento
- Volkswagen Voyage
- Volkswagen W12
B3747 Volkswagen Trouble Repair :
The sensors receive a 5 volt reference signal from the PCM. As pressure readings change, the sensor varies the voltage and the computer reads that to determine input. In the case of a broken wire, the sensor never sees the voltage and the computer assumes a major fault. So if you get this B3747 Volkswagen code, first check to make sure you're getting a good 5 volt reference signal at the sensor.
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