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Volkswagen Knock Sensor Replacement

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Volkswagen Knock Sensor Replacement

Volkswagen Bosch Knock Sensor Volkswagen Bosch Knock Sensor Volkswagen Bosch Knock Sensor Volkswagen Bosch Knock Sensor Volkswagen  Knock Sensor
Volkswagen Vemo Knock Sensor Volkswagen VDO Knock Sensor Volkswagen Hella Knock Sensor Volkswagen  Knock Sensor



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What is a knock sensor?

A knock sensor is a low voltage producing device (a signal producer) that allows your vehicle to run at the very peak of advanced engine timing without allowing very damaging engine knock caused by cylinder pre-ignition. Today's motors have high output or horsepower and have very low quality gas to run them. The engine knows that the fastest way to increase performance is to automatically advance the timing. The knock sensor lets the ECU know when knocking occurs so it can retard the timing a bit and stay at the maximum RPM's possible without damaging the engine.

How does it work?

The knock sensor is located in the engine valve or cylinder at the back of the motor or it can be located in the intake manifold close to the point where it connects to the engine block. Seated in these positions next to the cylinder, the sensor can feel the vibration of engine knocking caused by costly pre-ignition. Feeling the vibration, it emits a small voltage charge that is transmitted back to the ECU. The ECU, now understanding that the engine knock is occurring, retards the timing until the sensor does not feel any further vibrations.

Is engine knock really that bad?

Engine knock is definitely bad. The knocking is created by the ignition of fuel and air inside the cylinder before the valve reaches the highest point of the rotation where combustion is supposed to occur. At the minor end of the spectrum, this causes inefficient gas use and rough idle or vibration while driving. On the more severe side, this ignition of fuel can cause very costly wear and burn damage to cylinder heads, the cylinders themselves, gaskets, and pistons. Repairs can easily get into the thousands of dollars.

Does the knock sensor do anything else?

Because of its function of only reducing the timing of the ignition at the point there is a knock, the sensor allows your ECU to push your timing to the very edge of it's performance without costly damage to your motor. This translates into more efficient fuel consumption, better horsepower, and longer engine life.

How will I know if I have a faulty knock sensor?

We're not being funny here, but you would experience engine knocking and vibration. The knocking can become increasingly loud where you can hear it over your engine noise. If that doesn't happen, you will experience rough acceleration with a jerking sensation like you are hitting a speed limiter. You may also experience misfires, backfires, or smell a strong engine exhaust or burning smell from the pre-ignition happening in the cylinders.

Latest Volkswagen Knock Sensor Applications

02-04 Volkswagen Beetle Turbo S AWP 1.8 VDO Knock Sensor border= VDO Knock Sensor
02-04 Volkswagen Beetle Turbo S AWP 1.8 Knock Sensor
02-05 Volkswagen Jetta Wagon 1.8T AWP VDO Knock Sensor border= VDO Knock Sensor
02-05 Volkswagen Jetta Wagon 1.8T AWP Knock Sensor
  Vemo Knock Sensor
00 - Volkswagen Passat V6 30V AHA/ATQ Brown
550mm(2 Req) 550mm Brown Knock Sensor 550mm Brown 550mm Brown
00 -  Volkswagen Golf IV GL 4 CYL  VDO Knock Sensor border= VDO Knock Sensor
00 - Volkswagen Golf IV GL 4 CYL AZG,AVH Eng. Knock Sensor
02-05 Volkswagen Golf IV GTI VR6 BDF VDO Knock Sensor border= VDO Knock Sensor
02-05 Volkswagen Golf IV GTI VR6 BDF Knock Sensor
88 -  Volkswagen Golf GL/GT  Bosch Knock Sensor border= Bosch Knock Sensor
88 - Volkswagen Golf GL/GT Green May require 3, 000 979 133 electrical connector. Green replaces black 0 261 231 004. Knock Sensor Green
  Vemo Knock Sensor
00-05 Volkswagen Passat V6 4 Motion ATQ Brown
550mm(2 Req) 550mm Brown Knock Sensor 550mm Brown 550mm Brown
 - 01 Volkswagen Jetta IV 1.8 Turbo   Knock Sensor border= Knock Sensor
- 01 Volkswagen Jetta IV 1.8 Turbo 235mm Brown
AWD/AWW Engs. 235mm / Brown Knock Sensor 235mm / Brown
  Vemo Knock Sensor
- 01 Volkswagen Jetta IV 1.8 Turbo 235mm Brown
AWD/AWW Engs. 235mm / Brown Knock Sensor 235mm / Brown
00-01 Volkswagen Golf IV GLS 1.8 TBO 1.8 VDO Knock Sensor border= VDO Knock Sensor
00-01 Volkswagen Golf IV GLS 1.8 TBO 1.8 Knock Sensor
 - 01 Volkswagen Golf IV GLS 4 CYL  Vemo Knock Sensor border= Vemo Knock Sensor
- 01 Volkswagen Golf IV GLS 4 CYL AEG Eng. Knock Sensor
 - 01 Volkswagen Jetta IV GLS 4 CYL  Vemo Knock Sensor border= Vemo Knock Sensor
- 01 Volkswagen Jetta IV GLS 4 CYL AEG Eng. Knock Sensor
 - 89 Volkswagen Golf GTI 16V  Bosch Knock Sensor border= Bosch Knock Sensor
- 89 Volkswagen Golf GTI 16V Green May require 3, 000 979 133 electrical connector. Green replaces black 0 261 231 004. Knock Sensor Black
 - 89 Volkswagen Golf GTI 16V  Bosch Knock Sensor border= Bosch Knock Sensor
- 89 Volkswagen Golf GTI 16V Green May require 3, 000 979 133 electrical connector. Green replaces black 0 261 231 004. Knock Sensor Green
  VDO Knock Sensor
01-05 Volkswagen Passat Turbo 20V AWM Green
750mm(2 Req) Knock Sensor 750mm Green
88 - 89 Volkswagen Jetta GLI 16V  Bosch Knock Sensor border= Bosch Knock Sensor
88 - 89 Volkswagen Jetta GLI 16V Green May require 3, 000 979 133 electrical connector. Green replaces black 0 261 231 004. Knock Sensor Black
88 - 89 Volkswagen Jetta GLI 16V  Bosch Knock Sensor border= Bosch Knock Sensor
88 - 89 Volkswagen Jetta GLI 16V Green May require 3, 000 979 133 electrical connector. Green replaces black 0 261 231 004. Knock Sensor Green
92-95 Volkswagen Corrado SLC V6 AAA Hella Knock Sensor border= Hella Knock Sensor
92-95 Volkswagen Corrado SLC V6 AAA 340mm / Brown Knock Sensor 340mm / Brown
92-95 Volkswagen Corrado SLC V6 AAA Bosch Knock Sensor border= Bosch Knock Sensor
92-95 Volkswagen Corrado SLC V6 AAA 340mm / Brown Knock Sensor 340mm / Brown
03-04 Volkswagen Beetle Convt 4 CYL BDC,BGD VDO Knock Sensor border= VDO Knock Sensor
03-04 Volkswagen Beetle Convt 4 CYL BDC,BGD Knock Sensor


Some Volkswagen Knock Sensor Applications (View Full Catalog Above)

Volkswagen Beetle 1.8 Turbo Volkswagen Beetle 4 CYL Volkswagen Beetle Convt 4 CYL
Volkswagen Beetle Turbo S Volkswagen Corrado SLC V6 Volkswagen Golf GL
Volkswagen Golf GL/GT Volkswagen Golf GTI 16V Volkswagen Golf GTI 8V
Volkswagen Golf III GL Volkswagen Golf III GTI 4 CYL Volkswagen Golf III GTI VR6
Volkswagen Golf IV GL 4 CYL Volkswagen Golf IV GLS 1.8 TBO Volkswagen Golf IV GLS 4 CYL
Volkswagen Golf IV GTI 1.8T Volkswagen Golf IV GTI VR6 Volkswagen Jetta Carat
Volkswagen Jetta GLI 16V Volkswagen Jetta III GL 4 CYL Volkswagen Jetta III GLS 4 CYL
Volkswagen Jetta III GLX VR6 Volkswagen Jetta IV 1.8 Turbo Volkswagen Jetta IV GL 4 CYL
Volkswagen Jetta IV GLS 4 CYL Volkswagen Jetta Wagon 1.8T Volkswagen Passat 16V
Volkswagen Passat Turbo 20V Volkswagen Passat V6 Volkswagen Passat V6 30V
Volkswagen Passat V6 4 Motion Volkswagen Rabbit Cabriolet

1.8 AAA ABA AEB-1.8 AEG AHA/ATQ ATQ AWM
AWP AWP 1.8 AWV 1.8 BDC,BGD BDF


More Applications (View Full Catalog Above)

Acura Audi BMW Buick Cadillac Chevrolet Chrysler Dodge
Eagle Ford GMC Honda Infiniti Jaguar Kia Lexus
Lincoln Mazda Mercedes Benz Mercury Mitsubishi Nissan Oldsmobile Plymouth
Pontiac Porsche Saab Subaru Toyota Volvo
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