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JDM Garage UK
Worldwide shipping
JDM Garage UK
Specialising in used Nissan Parts for a wide variety of Nissans, including the Skylines, GTR and 200sx/Silvias.
Link ECU KnockBlock G4+ - #KNB
The G4+ KnockBlock is an essential tool for tuning and can aid in the early detection of incorrect ignition timing, lean air/fuel mixtures and mechanical issues. It is used it with ear buds, headphones or noise cancelling ear muffs and features special filtering to allow you to listen in and detect knock early.  


Listen to one or two knock sensors
Special filtering design improves signal to noise ratio
Can be used with ear-buds, headphones or noise cancelling ear muffs
Long life lithium rechargeable battery
Rugged CNC aluminium enclosure
Flying lead headphones connector
Can be used with all OEM knock sensors
Can be used to interface directly to a laptop for recording of engine noise or knock sensor frequency analysis (using PCLink G4+)


Please note headphones with their own noise filtering may be unsuitable for use with the knock block.

What’s in the Box?
G4+ KnockBlock
2 sensor looms (attached)
1 headphone loom (attached)
Quick Start Guide
1 USB cable mini
2 Bosch type doughnut OEM knock sensors
2 small Link Engine Management stickers


Specifications:

Operating
Install the knock sensor/s in a suitable location on the engine (typically on a solid mounting point on the block near the cylinder head)
If only using one sensor, leave the unused sensor cable disconnected
Turn the volume control clockwise until it clicks. The LED indicator will turn blue when the KnockBlock is operating
Turn the volume to the minimum setting (most anti-clockwise)
Connect headphones to the 3.5mm audio jack
Run the engine and carefully increase the volume (clockwise) until engine mechanical noise can be heard. Adjust to a comfortable listening volume
Charging
Turn off the KnockBlock by turning the volume control anti-clockwise until it clicks
Connect the USB charging cable to the KnockBlock’s Mini USB connector. Can be charged from any standard USB charger PC, laptop, car or cell phone charger (2.1A at 5V max)
The LED indicator will show red while charging. When the indicator turns off the battery is fully charged
Charge the G4+ KnockBlock after use and before storage



Payment Options
Payment
Payment must be made within 5 working days using one of the following methods PayPal, credit card (Visa, Mastercard, Switch or Visa/Delta) or bank transfer. We do not accept payment via cheque, postal order or any other means.
SHIPPING
  • We ship all items within 3 working days unless otherwise specified.
  • The listing delivery price is for shipping to the Mainland UK ONLY. This does not include Channel Islands, Northern Ireland and Scottish Highlands. Please contact us for a shipping quote to these destinations or any overseas destinations. Shipping, Handling and Insurance Fees are not negotiable.
  • We do not ship items on weekends, bank holidays or national holidays.
  • We ONLY ship to the PayPal address used when paying for the item. We are not responsible for incorrect or undeliverable addresses and you may be charged for a re-delivery.
  • We will ship worldwide, please email us your complete address for a quote.
  • If your parcel has been dispatched and not arrived please contact us via email or phone and we can provide tracking details for your parcel.
  • You will be required to sign for your parcel when it is delivered. If you are not at home when the parcel arrives, a card will be left for you to arrange an alternative delivery date with the courier.
Frequently Asked Questions 
  • What can I do if the item I've received is not as described or damaged?
    Please contact us as soon as possible to make us aware of a problem, we'll do our best to solve this for you as quickly as we can.
  • When will you post my item?
    Within 3 working days, unless otherwise specified.
  • When will I receive my item?
    All Mainland UK orders are dispatched by Royal Mail First Class or City Link, depending on the size and weight of the item. You should receive your item within 1 - 2 days of dispatch. For all Offshore and International orders please contact us to find out the delivery time to your country.
  • Can I ask for a refund or replacement if I haven't received my item?
    If your item has been sent my Royal Mail you should allow 15 days from the date of dispatch before an item is considered lost. If your item has been shipped by City Link please contact us within 1 - 2 days. If you have any queries regarding your delivery please contact us.
  • Can I ask for a refund or replacement if I'm not satisfied with the item I've received?
    According to the Distance Selling Regulations you have 14 working days from the day you receive the item to cancel your order. We allow 14 DAYS for you to cancel your order and return it to us, return postage is to be paid for by yourself and we recommend suitable insurance. Once the item has been returned and checked over we will issue a refund EXCLUDING the cost to us of the original delivery charge, even if the item is listed with Free Delivery.