Autoinform LIVE returns to Scotland

Published:  20 March, 2018

Autoinform LIVE is back in Scotland over  the weekend of 14-15 April. 

Being held at Glasgow’s GTG Academy, Autoinform LIVE is once again powered by OESAA, in association with Frank Massey’s ADS. The event features three distinct training programmes, including lots of new topics and sessions, allowing attendees to book the selection best suited to their needs.   Meanwhile, Saturday night’s gala dinner at the Crowne Plaza Glasgow will feature popular comedian Dave Fulton.   Commenting on the forthcoming Scottish show, OESAA Chairman, Nigel Morgan said: “We understand that keeping up-to-date with industry developments is a challenge, so it’s gratifying to know that making Autoinform LIVE more accessible to garage owners and technicians all over the UK is so appreciated.”

The entire weekend, including all training, lunches, refreshments and a ticket to the gala dinner, costs £195 + VAT.

For further information or to book tickets, please visit the OESAA website at www.oe-suppliers.org/.

Additional gala dinner tickets for non-training partners, as well as single day tickets for the event, are available on request via Annette on 01772 201597.

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    Many modern systems, such as common rail diesel injection, can appear to be so complex that they seem to operate by magic. Over time, such systems are only going to become more and more complex, so understanding them means you can gain a head start on their repair.
        
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    Figure 1 shows  the live data returned from a common rail diesel injection vehicle with an EDC16 engine management system.
        
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    An oscilloscope is another important tool when investigating a fault with such a complex system. Figure 2 shows an oscilloscope waveform from an Audi with the 2.0L common rail engine. The yellow trace is the fuel rail pressure sensor voltage (feedback) and the green trace is the current flow through the inlet metering valve (command). The waveform was captured during a wide open throttle (WOT) condition.
        
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    Full analysis
    When the fuel pressure demand decreases, the duty cycle control from the ECM increases. This allows more current to flow through the solenoid which results in a reduction of the fuel pressure. Duty cycle is often referred to as pulse width modulation (PWM) control.

    The duty cycle control on the ground side of the fuel inlet metering valve can be analysed using an oscilloscope, as seen in Figure 3. The waveform below displays the fuel rail pressure feedback voltage (yellow trace) and the fuel inlet metering valve duty cycle control from the ECM (green trace).
        
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    It was running extremely rich, blowing blue smoke. You could taste the emissions. If you have ever followed a vintage car you will know what I mean. This is where a trip down memory lane started.  I have not worked on this system for many years.  In fact it was on systems like this that our current-day diagnostic processes were developed.

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