Question 1

Buying & Fitting Guide

Accepted Answer

The knock sensor is located on the engine block, cylinder head or intake manifold. This is because its function is to sense vibrations caused by engine knock or detonation. The PCM uses this signal to alter the ignition timing and prevent detonation. It will compare this information with its preset tables to identify a valid knock or ping. If a ping is sensed, it will retard the ignition timing to protect the engine from this damaging pre-ignition. Some important information for selecting the correct knock sensor is the type of sensor needed; sensor type, shape and size, number of connectors and poles, fitment position and date limitation of the unit. As car manufacturers regularly update certain peripherals and design of their models, some sensors will only be suitable for particular models of certain years.

Question 2

Useful Fitting Accessories & Tools

Accepted Answer

Click on the links below to find useful fitting accessories and tools:

Torches and Work Lights
Mechanic's Toolkit
Disposable Gloves and Hand Care
Screwdrivers
Plier Sets
Cleaning

Question 3

Helpful Tips

Accepted Answer

The symptoms of a bad knock sensor usually show up while accelerating or under a load. Be clear that this sensor affects the ignition timing of an engine. The vehicle will have a loss in fuel mileage and acceleration especially at highway speeds. The customer may complain that the vehicle's engine doesn't feel right. Some coil over plug (COP) systems use strategies that cancel cylinders, see the manufacturer's manual for special instructions. Often these sensors are located on the cylinder heads, under the intake manifold. The vehicle's computer (PCM) will detect a bad knock sensor, set a code (P0325-P0332) and enter fail safe mode.

Question 4

Bosch Knock Sensors

Accepted Answer

Bosch has been a major supplier of new alternators to Original Equipment vehicle manufacturers since 1913. Securing OE certification requires strict adherence to stringent precision and performance criteria. These same exacting criteria are also applied in the manufacturing of all Bosch aftermarket sensors. Bosch knock sensors are built to high quality standards and 100% factory tested to ensure years of reliable performance, even under the most extreme operating conditions.

Bosch Knock Sensor - 0261231228

€22.99

Item code: 3167429

Delivery Only

In stock

Dispatch: TUESDAY

Specifications

OE Numbers

Overview

Bosch Knock Sensor

Buying & Fitting Guide

Useful Fitting Accessories & Tools

Helpful Tips

Bosch Knock Sensors

Safety and Product Information