Engine Management Light On ? Vehicle diagnostics in Shropshire UK

check engine light

Mobile vehicle diagnostics

Reasons why the vehicle engine management light is on

The vehicle engine management light may illuminate if a fault is detected by the engine control unit (ecu).
A fault may be logged in engine computer memory when an event occurs which is outside programmed parameters, for example, an electrical wire breaks causing loss of a signal to the computer control.
There are hundreds of possible causes so first step is to have a vehicle diagnostic check to identify the faults logged as seen by the ECU.
The vehicle engine ecu communicates with vehicle diagnostic equipment via a serial data connection.
Serial data allows the diagnostic computer to read and display any stored fault codes logged by the engine controller.
Further investigation will be required to determine the actual cause of the logged fault code.

Could a fault exist and the engine light stay off?

Electronic faults may happen very rapidly, in fact so quickly that on occasion the fault is not seen by the control unit due to computer processing speed.
This scenario can be likened to a photographer taking a picture of a racing car going around a track, the racing car may have passed very quickly and the cameraman missed the event.

Engine Diagnostic Scan

Car Diagnostics Shrewsbury

Stage 1 : Fault code read

The scan tool can perform an Electronic Health Check to download a list of fault codes which may have caused a check engine light on fault.
Fault codes should be recorded.

Stage 2 : Investigate

Problems with electrical or mechanical systems may cause a engine light on fault.
Visual checks should be made first for any obvious defect.
Electrical tests may be required to pinpoint broken or damaged wiring, lost connections, power supply faults, or control unit faults.
More indepth investigation may require electrical signal testing of components.

Stage 3 : Repair or renew

Simple adjustments may be required (adaptation)
Vehicle wiring repairs may be needed
Components may need exchange repair or renewal.

Stage 4 : Clear logged fault codes

Fault codes may be cleared after effective repair. If a fault still exists then the check engine light will probably come on again.

Engine Control Systems

Electronic Diesel Control (EDC) Diesel Engine Management
Common Rail Diesel Fuel Injection (CRDi,CDi, HDi,TDCi,TDi) Injector recode
Petrol fuel injection systems
Electronic ignition systems

Exhaust Emissions Aftertreatment Systems

Exhaust Gas Recirculation (EGR)
DPF Regeneration

Supply of Vehicle Engine Management Parts

Autoelectrical wiring parts

Autoelectrical Components Online Store
Air flow meter
Air Mass Sensor
Camshaft Position Sensor
Crankshaft Position Sensor
Lambda Exhaust Gas Oxygen Sensor
Ignition Coil Pack
EGR Valve
Mailorder Spares
Parts & Components

Location & Mobile Vehicle Diagnostics Service Areas

Autoelectrical repairs and Vehicle Repair Mobile Service business with on site callout servicing Shropshire and Mid wales areas
Shrewsbury (SY)   Telford (TF) Shropshire county & Welshpool Mid Wales Region

Searching for an auto electrician near me ? We are based near Shrewsbury Shropshire, UK location enables fast access to A458, A5, M54, and Midlands road network for mobile workshop service support technicians to reach vehicle breakdowns in Shrewsbury, Telford, Oswestry and Welshpool local areas.
Shrewsbury Town Areas: Bicton Castlefields Copthorne Coleham Ditherington Emstrey Gains Park Greenfields Harlescott Heron Gate Kingsland Meole Brace Village Monkmoor New Park Farm Radbrook Sundorne Sutton Farm.

Shropshire areas SY1 SY2 SY3 SY4 SY5 SY21 : Acton Burnell Alberbury Baschurch Bayston hill Berrington Condover Church Stretton Craven Arms Cressage Condover Crew Green Dorrington Ford Halfway house Knockin Middletown Minsterley Nesscliffe Pontesbury Ludlow Rowley Ryton Uppington Uffington Westbury Worthen Yockleton.
Bridgnorth Hodnet High Ercall Market Drayton Much Wenlock Oswestry Prees Telford and Wrekin Wellington West Felton Welshpool Wem Whitchurch Whixall
On site repairs where possible for convenience and often saving the cost and hassle of vehicle breakdown recovery and transport service. whether at home hotel shopping centre or work, our Mobile service can come to you to fix the car , van, 4x4 , truck,or plant.
*All services are provided subject to availability

Callout to other UK areas available to account customers.

Open Hours & Out of Hours Callout

Normal Hours:
Monday to Friday 08.00 hrs to 18.00hrs
Saturday 08.30 hrs to 12.30hrs

Out of hours emergency breakdown callout

Callout for out of hours ,Sundays, and Bank Holiday Monday is subject to workload for breakdown cover.