Fuel Systems

Diesel Injectors and Injection Systems


Our specialist test equipment enables us to thoroughly test common rail diesel injectors and systems, including low pressure and high pressure fuel pumps.


Common Rail Systems


Over the past decade we have seen a large increase in the amount of diesel powered vehicles on our roads. However, the diagnosis and repair methods have also become more sophisticated as a result of the new high pressure diesel systems. Because of this, the repair of modern diesel systems requires a higher quality of test equipment, high precision parts, and the expertise of diesel specialists. Hall’s Auto Electrical Ltd posses both trained technicians and the latest test equipment to carry out repairs to these technically challenging problems.


Diesel Fuel Injection Pumps


We are able to carry out repairs to all diesel injection pumps, including rotary, inline, electronic and common rail.

Repairs will be carried out at our state of the art fuel shop where they will be repaired, bench tested, and calibrated to O.E specification.


Common Rail Fuel Pumps


We are specialists in the test and repair of all common rail fuel pumps.


Injector Repair/Overhauls


With our high pressure test equipment we are able to offer tests, repairs and overhauls to all injectors both petrol and diesel. All parts and labour will be backed up with a 12 month warranty.


Common Rail Injectors


Again with the latest test equipment available to us we are able to offer O.E standard tests, calibration and repairs to all common rail injectors including car, commercial and agricultural.



Mechanical Diesel Injectors


Mechanical diesel injectors can also be examined on our test rig, for leaks, opening pressures and spray patterns.


Programming & Calibrating


On most rail diesel systems, many components need to be correctly programmed to the vehicle and at Halls we are able to adjust all calibration settings to their correct settings.


If your diesel vehicle suffers from any of the following contact us and rest assured we will pinpoint the fault correctly and fix or replace the necessary part at the most cost effective rate;


  • Starting problems when cold
  • Starting problems when hot
  • Rough running
  • Lack of power
  • Poor fuel economy
  • Constant stalling


Petrol Injector Testing & Cleaning


Electronically-controlled fuel injectors are durable and precise metering systems capable of pulsing for millions of cycles.


The most common problem with injectors is that they accumulate a build up of wax, tar, and olefins inside the injector and on the pintle/seat area. These types of debris will restrict the flow of fuel through the injector. Injectors are made to such close tolerances that a 5-micron build up (a human hair measures 40 to 90 microns) will reduce the flow by up to 25 per cent.


The only method recognised to clean these precise devices without damaging components is Ultrasonic cleaning. The Ultrasonic waves break up the contaminates while the injector pulses. The debris is then carried out of the injector by a biodegradable chemical


Properly cleaned and maintained fuel injectors offer:


  • Savings to the motorist with improved fuel consumption
  • Prolonged oxygen sensors
  • Prolonged life of the Exhaust System
  • Reduced CO pollution


Enquire Now
    • "Hills Waste Solutions has a 10 year working relationship with Halls Electrical and has been fitting Brigade 4 camera MDR system with GPS and a 4 sensor sidescan( including turn left and low speed trigger) to all our new vehicles since 2014.   The fitting of this recordable camera equipment provides essential safety benefits for vulnerable road users particularly when vehicles perform left turns. In addition it has proven to be beneficial when processing insurance claims as it provides a factual record of any alleged incident.   Halls Electrical provide Hills Waste Solutions with an efficient service and a ‘can do’ attitude coupled with reliable workmanship."
      Nathan Carr (Depot Manager)
      Hills Waste Solutions
    • "Mercedes Benz UK Limited, have used the services of Halls Electrical Ltd for the last 5 years or so. During this time we have found there service to be extremely professional to our standard of work, reliable, and efficient in the way they have conducted their business.   Our core business is the preparation of used commercial vehicles for resale, and approximately 1000 new commercials.   We have upwards of 5000 vehicles per annum through our workshops, with occasional demand for Subcontractors.   Halls Electrical Ltd has worked with us very closely with the preparation of our new commercial business to the point that they are registered on our COP with the VCA.   When carrying out work on our premises, the employees of Halls Electrical Ltd adhere to all the correct H&S procedures relevant to there works and our environmental policy.   The invoicing is always on time, and correct first time.   I have no hesitation at all, in recommending Halls Electrical Ltd, to carry out work for any company.  "
      Peter Colbridge MIMI AMIRTE AMSOE (Workshop Operations Manager)
      Mercedes Benz UK Ltd
    • "I manage a department that is responsible for providing emergency responses to elderly and vulnerable people that live within the Swindon Borough Council geographical area.A team of Homeline Response Officers are on call 24/7 and use high livery on their vehicles to let people know that we are there. We are the only community alarms providers in the country to have use of the bus lanes for responding to emergencies; we also carry life saving equipment such as defibrillators, time matters! We asked Halls electrical to provide us with appropriate bar lights and high specification markings. We were absolutely delighted with the quotations given. Great value and exceptional workmanship with fantastic communication throughout the process. Highly recommended."
      Jack Sharpe (Principal Homeline & Telecare Officer)
      Swindon Borough Council
    • Local businesses collaborate to race to the aid of injured drivers

      -*+Ahead of the 2016 motor racing season, Wiltshire business have collaborated to provide fast response medical intervention to racing drivers competing at Castle Combe Circuit. Honda of the UK Manufacturing Ltd of Swindon has donated a brand new Honda CRV to the Wiltshire circuit, which has been converted by Hall’s Electrical Ltd, also of Swindon….

    • Advice for winter boaters

      -*+Sailing during the colder months isn’t for everyone, but for those that do brave the weather, the rewards are plenty, not least of which is a lot more room out on the water. The joy of a cool, crisp morning is hard to beat even as you remember the highs of cruising around during the…

    • Take advantage of our special offers this Autumn

      -*+It’s Autumn, it’s Hall’s Electrical, it’s our annual offers on equipment and accessories for cars, vans, motorhomes, lorries and boats. Get ‘em while they’re hot!   Eberspacher External Heater Kits Don’t let the cold bite this winter. Invest in a high-quality external heater for your campervan and you’ll stay toasty at night whatever the weather….