Learn what the first things are where you look for when the car comes in with a problem. This really enjoyable two days seminar is part of the "EMS 1 series" seminars.
The EMS 1 series are a number of very practical but in depth diagnostic seminars, directly applicatble in your workshop.
The EMS1 series seminars are all parallel and do not need to be attended in any particular sequence.
This seminar is a hands on training. Equipment will be used by you on the desks, conected to operating engine management systems.
The following diagnostic topics are covered:
The heated oxygen sensor.
The most common 1 volt oxygen sensors construction are being explained and the diagnostics on these.
A very important part of the diagnostics is the flow on effect of signal irregularities on the engine.
We will be covering preceding problems leading to undue oxygen sensor fault codes (e.g. dripping
injectors, EGR, Ignition problems, oil consumption, leaking manifolds, etc.) and how to read that from the scope pattern produced by the oxygen sensor.
The oscillation frequency, the scope pattern shape and the relevant conclusions for diagnostics on engine components.
The catalytic converter check sensor (EOBD) and the effect of oxygen sensor heating faults and how to diagnose this.
The 5 Volt heated new generation oxygen sensor.
The construction and its diagnostics as with the 1 volt oxygen sensor.
The LAF oxygen sensor.
A brief overview of the broad band (or Linear Air Fuel ratio) oxygen sensor
Ignition systems and in depth ignition scope pattern analysis.
We look at the flow on effects of faults like bad connections, weak sparks, etc.
Fault code settings and diagnostics out smarting the ECU's own diagnostic system.
The effect of a non standard coil as replacement and faulty coil scope pattern recognition.
The effect of engine speed on the dwell angle.
Ignition back tracking 'while checking for spark' and the destructive effect on the igniter in detail.
Air mass sensors.
The hot wire air mass sensor's construction and ECU signal processing is covered, like plausibility check, fault code setting and various trigger levels.
Anti back flow construction and scope signal understanding.
Voltage prediction from wiring diagrams.
We look in detail at common faults like coated hot wire or cracked hot film and how to recognise that.
Idle control systems.
Various different ISC constructions like the solenoid, 2 wire-, 3 wire valve, 4 wire-, 6 wire stepper motor.
We look at the diagnostics, the ECU control, the base idle settings and adjustments plus the flow on effect from faulty idle actuators or their wiring.
Please note: the seminar is SCOPE based. The first 'shot' in diagnostics is looking at what is happening with the scope as it takes the guess work away.
The diagnostician can bring his/her own scope, or our high speed dual channel scopes (ATS
) can be used.
Pre requisite: From our experience we advise that the diagnostician has completed the AED 'Automotive Electronic Diagnostic' 2 day training seminar, regardless achieved level through other training systems or experience!
After John from Khandallah Garage Ltd attended the EMS11 training seminar in Wellington (27 06 2011). John wrote as comment in the evaluation form that as most value to him was: "Oscilloscope Patterns - reading and diagnosing patterns"