How Does It Work? Archives - Page 2 of 2 - Professional Motor Mechanic

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Can you make sense of sensors?

|Date: March 26, 2016

Can you make sense of sensors?

DENSO explains common lambda sensor queries & exhaust gas temperature sensors. LOOKING INTO LAMBDA W ...

DENSO explains common lambda sensor queries & exhaust gas temperature sensors. LOOKING INTO LAMBDA Why replace the Lambda sensor? Ageing Lambda sensors worsen engine performance, increase fuel co ...

March 26, 2016
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Hybrid vehicle servicing: Part 1

|Date: February 02, 2016

Hybrid vehicle servicing: Part 1

In the first of a two-part series, Sealey Tools looks at hybrid vehicle servicing and how it works. Durin ...

In the first of a two-part series, Sealey Tools looks at hybrid vehicle servicing and how it works. During recent years the strive for greater fuel economy and lower emissions has seen a rapid increas ...

February 02, 2016
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The design and function of safety control systems

|Date: December 24, 2015

The design and function of safety control systems

CHARLES FIGGINS, BLUE PRINT TECHNICAL CONSULTANT The BMW MINI was a joint development between Rover and B ...

CHARLES FIGGINS, BLUE PRINT TECHNICAL CONSULTANT The BMW MINI was a joint development between Rover and BMW from 1995, until BMW took full control of the project in 1999. When launched, many parts of ...

December 24, 2015
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The five main causes DPF failure

|Date: December 15, 2015

The five main causes DPF failure

With the introduction of the ‘Euro 5’ emissions standard in 2009, the incorporation of a Diesel Particula ...

With the introduction of the ‘Euro 5’ emissions standard in 2009, the incorporation of a Diesel Particulate Filter (DPF) into the exhaust system of diesel passenger cars became effectively compulsory. ...

December 15, 2015
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Why do modern wheel bearings utilise magnetic encoding technology?

|Date: July 09, 2015

Why do modern wheel bearings utilise magnetic encoding technology?

Did you know that there is a lot more going on inside the modern wheel bearing than just balls or rollers ...

Did you know that there is a lot more going on inside the modern wheel bearing than just balls or rollers? To offer evidence, many FAG wheel bearings now incorporate magnetic encoding technology that ...

July 09, 2015
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Lambda sensors explored

|Date: May 30, 2014

Lambda sensors explored

Tim Howes, Deputy General Manager – Supply Chain & Technical Service, NGK Spark Plugs (UK), looks at the ...

Tim Howes, Deputy General Manager – Supply Chain & Technical Service, NGK Spark Plugs (UK), looks at the origins of vehicle Lambda sensors and the various types. ...

May 30, 2014
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The crucial role of NOx sensors

|Date: January 09, 2014

The crucial role of NOx sensors

Due to the need for a reduction in response time delays and the ever increased accuracy of the control sy ...

Due to the need for a reduction in response time delays and the ever increased accuracy of the control systems of the modern internal combustion engine, some new and very specific sensor technologies ...

January 09, 2014
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A quick guide to ignition coils

|Date: November 07, 2013

A quick guide to ignition coils

The operating principle of the ignition coil is essentially the same for all types – whether the classic ...

The operating principle of the ignition coil is essentially the same for all types – whether the classic can-type coil, or in a coil rail system. The device contains two copper wire windings and a lam ...

November 07, 2013
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The design and function of Toyota Multi-Mode transmission

|Date: August 18, 2013

The design and function of Toyota Multi-Mode transmission

Toyota’s Multi-Mode transmission (MMT) has been around for over seven years and is commonly fitted to the ...

Toyota’s Multi-Mode transmission (MMT) has been around for over seven years and is commonly fitted to the Aygo, Yaris and Corolla models. You will find it being referred to as an ‘automatic’, which it ...

August 18, 2013
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NOx sensors – background and function

|Date: April 20, 2013

NOx sensors – background and function

Due to the need for reducing the delay in response time and the ever-improving accuracy of the control sy ...

Due to the need for reducing the delay in response time and the ever-improving accuracy of the control systems of the modern internal combustion engine, some new and very specific sensor technologies ...

April 20, 2013
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‘Broadband’ Lambda sensor – function and role

|Date: August 13, 2012

‘Broadband’ Lambda sensor – function and role

With the ever greater demand to reduce fuel consumption and to lower exhaust emission levels, it has beco ...

With the ever greater demand to reduce fuel consumption and to lower exhaust emission levels, it has become necessary to operate engines away from the stoichiometric fuelling point under certain condi ...

August 13, 2012
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Link rods – their purpose and why they fail

|Date: June 26, 2012

Link rods – their purpose and why they fail

Link rods are subjected to massive shock loading – more so on increasingly pot-holed roads. The safety of ...

Link rods are subjected to massive shock loading – more so on increasingly pot-holed roads. The safety of the vehicle depends on the smallest and most vulnerable part of the whole steering and suspens ...

June 26, 2012
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Vacuum pumps explained

|Date: June 26, 2012

Vacuum pumps explained

In many cases, vacuum pumps (highlighted in red, image below) are located directly on the cylinder head, ...

In many cases, vacuum pumps (highlighted in red, image below) are located directly on the cylinder head, and are driven by the camshaft. ...

June 26, 2012
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Zirconia switching Lambda sensor – function and operation

|Date: June 26, 2012

Zirconia switching Lambda sensor – function and operation

There are basically three different, non-interchangeable types of Lambda sensor. The zirconium dioxide an ...

There are basically three different, non-interchangeable types of Lambda sensor. The zirconium dioxide and titanium dioxide Lambda sensors are also called switching, voltage jump or ‘binary’ sensors, ...

June 26, 2012
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Ceramic diesel glow plugs – their function and how to install

|Date: June 21, 2012

Ceramic diesel glow plugs – their function and how to install

Glow plug technology can be divided into two major categories – metal sheathed types and ceramic types. ...

Glow plug technology can be divided into two major categories – metal sheathed types and ceramic types. Ceramic glow plugs utilise a heating element which is encased in a special type of ceramic – Si ...

June 21, 2012
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