Professional Motor Mechanic

MAF sensors – troubleshooting and fault diagnosis advice

|Date: February 24, 2015

MAF sensors – troubleshooting and fault diagnosis advice

What is a MAF sensor? A Mass Airflow (MAF) sensor, also known as an “air meter,” measures the air coming ...

What is a MAF sensor? A Mass Airflow (MAF) sensor, also known as an “air meter,” measures the air coming into the intake system and transmits this information to the ECM. The ECM utilises the MAF sens ...

February 24, 2015
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Exhaust system failures – bad vibrations?

|Date: July 31, 2014

Exhaust system failures – bad vibrations?

Example 1: Vibration due to old or damaged exhaust rubber supports. A broken exhaust as a result of vibra ...

Example 1: Vibration due to old or damaged exhaust rubber supports. A broken exhaust as a result of vibrations from worn out exhaust rubber supports. ...

July 31, 2014
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How to overcome DPF servicing and repair issues

|Date: July 29, 2014

How to overcome DPF servicing and repair issues

With DPF checks now included in the MOT inspection, complete component removals could result in a failed ...

With DPF checks now included in the MOT inspection, complete component removals could result in a failed test and a subsequent invalid motor insurance claim. European emission legislation is becoming ...

July 29, 2014
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How do Selective Catalytic Reduction systems work?

|Date: July 14, 2014

How do Selective Catalytic Reduction systems work?

Driven by the desire to reduce the amount of harmful emissions being pumped into the atmosphere without c ...

Driven by the desire to reduce the amount of harmful emissions being pumped into the atmosphere without compromising vehicle performance, Selective Catalytic Reduction (SCR) is the automotive industry ...

July 14, 2014
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How to use the JLM DPF Cleaning Kit – 7 easy steps

|Date: April 14, 2014

How to use the JLM DPF Cleaning Kit – 7 easy steps

Up until now, when presented with a blocked DPF (and diagnostic regenerative intervention has proved unsu ...

Up until now, when presented with a blocked DPF (and diagnostic regenerative intervention has proved unsuccessful) a workshop could offer one of two (legal) recommendations: 1. Replace the DPF with a ...

April 14, 2014
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Spark plugs explored

|Date: April 08, 2014

Spark plugs explored

Engine combustion is a fascinating topic to gain an understanding of, particularly when comparing compres ...

Engine combustion is a fascinating topic to gain an understanding of, particularly when comparing compression and spark ignition. It’s not hard to see the convergence and similarity between gasoline ( ...

April 08, 2014
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How Cataclean can help reduce emissions

|Date: March 26, 2014

How Cataclean can help reduce emissions

There’s lots of reasons that cars fail MOTs, but emissions doesn’t have to be one of them. Here, William ...

There’s lots of reasons that cars fail MOTs, but emissions doesn’t have to be one of them. Here, William Jones, Sales Director at Cataclean, discusses the benefits of taking preventive steps to keep y ...

March 26, 2014
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EGR cleaning – a comprehensive guide

|Date: March 19, 2014

EGR cleaning – a comprehensive guide

Author: Gary Wood, The Diesel Doctor (TerraClean operator) The first thing that you need to understand is ...

Author: Gary Wood, The Diesel Doctor (TerraClean operator) The first thing that you need to understand is that this tool is not just for cleaning the EGR valve, but the whole EGR system instead. The p ...

March 19, 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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EGR valve testing – the key steps

|Date: December 09, 2013

EGR valve testing – the key steps

These days, Exhaust Gas Recirculation (EGR) systems are commonplace on a wide range of petrol and diesel ...

These days, Exhaust Gas Recirculation (EGR) systems are commonplace on a wide range of petrol and diesel engines in an attempt to reduce nitrogen oxide exhaust emissions. Due to the harsh operating en ...

December 09, 2013
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Techron: Fuel system cleaners

|Date: November 06, 2013

Techron: Fuel system cleaners

Today’s modern engines are at the mercy of many variables that could ultimately affect the overall perfor ...

Today’s modern engines are at the mercy of many variables that could ultimately affect the overall performance and longevity of your customers’ cars. The indifferent quality of the fuel available on f ...

November 06, 2013
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DPFs – how to perform a ‘forced regeneration’

|Date: October 07, 2013

DPFs – how to perform a ‘forced regeneration’

TOOL USED: SOCIO 400 DIAGNOSTIC UNIT, AVAILABLE FROM TECNODIAGNOSTICS 1. Open the software and click into ...

TOOL USED: SOCIO 400 DIAGNOSTIC UNIT, AVAILABLE FROM TECNODIAGNOSTICS 1. Open the software and click into ‘Car-MPV’. 2. Select your vehicle. 3. Once vehicle is selected you will then see the full syst ...

October 07, 2013
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How does a Diesel Particulate Filter work?

|Date: September 19, 2013

How does a Diesel Particulate Filter work?

The exhaust emissions standards for new cars have effectively required fitment of a Diesel Particulate Fi ...

The exhaust emissions standards for new cars have effectively required fitment of a Diesel Particulate Filter (DPF) in the exhaust of diesel cars since 2009; this is when the 'Euro 5' standard as we k ...

September 19, 2013
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Exhaust system failures – common causes

|Date: August 12, 2013

Exhaust system failures – common causes

The exhaust system can become damaged due to various problems, which can be grouped into three different ...

The exhaust system can become damaged due to various problems, which can be grouped into three different categories: rust, vibrations and incorrect use. All three categories will eventually generate f ...

August 12, 2013
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Catalyic converter failure – was the cat to blame?

|Date: July 29, 2013

Catalyic converter failure – was the cat to blame?

Although, we’re delivering this message in a slightly unusual way, the purpose of this article is to ulti ...

Although, we’re delivering this message in a slightly unusual way, the purpose of this article is to ultimately get you to think differently about the way modern catalytic converters and DPFs work. Wi ...

July 29, 2013
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