What it’s all about

… and if it’s the service for you.

It is essential that injectors are tested as part of the diagnostic procedure on all petrol vehicles, especially when faced with combustion related problems. The ASNU equipment is a highly advanced injector solution offering diagnostic, test and service function across a wide range of petrol vehicles, for standard injectors and piezo injectors.

We are able to clean, test and refurbish the majority of petrol fuel injectors, including piezo and standard, old and new, for the vast majority of makes and models. We are proud to offer an onsite injector cleaning service, with a fast and efficient turnaround. Our ASNU state of the art ultrasonic injector cleaning and testing machine is the most advanced available on the market and has been developed with capabilities beyond that of standard test facilities. It makes use of ultrasonic cleaning methods to remove dirt from the injector pintle and seats, returning fuel flow to the highest level of efficiency.

As a diesel injection specialist and Delphi main agent, we have naturally invested heavily into the diesel side of the market- but we are also now able to offer the highest quality of service when it comes to petrol systems too. Having taught the subject FSI Systems for some 14 years we know a thing or two about the system.

Why Choose Us?

… best price, guaranteed!

With over 100 years collective automotive experience between our technicians, we are confident that we can solve all of your motoring problems. We use only the latest diagnostic equipment and up to the minute technical training expertise to guarantee that only the best service is ever delivered.

Furthermore, we are Trading Standards Institute approved and RAC Approved for that added peace of mind.

  • We use the latest diagnostic equipment

  • Over 30 years of training excellence

  • We’ve been approved by numerous bodies

See it in action

… we’ve got photos and videos to show!

FAQs… we’ve got them all covered

What is injector diagnostics and servicing?

Injector diagnostics is a specialist service we offer whereby the petrol injectors fuel distribution, fuel droplet formation, fuel atomization and fuel delivery are all visually and physically checked and tested. The injectors then go through the ultrasonic cleaning procedure and the rubber sealing rings, plastic protection caps and filter baskets are replaced. Everything is then retested to ensure the injectors are all performing equally and as a balanced set.

What is ultrasonic cleaning?

Ultrasonic cleaning is a cleaning process in which ultrasonic sound is passed through a solution, producing millions of high energy bubbles. These bubbles release all of their energy when they make contact with a surface; in this case, the injector surface. This explosion of high energy removes contaminants and loose matter that has stuck to the solid surface and is an ideal method of cleaning high precision equipment.

Why should I clean my injectors?

Unfortunately, it is not possible to stop tiny particles of dust from entering the fuel supply, as it is not possible to stop substances passing through the fuel filter when you refuel. This contamination is made worse by modern emissions that recirculate air gasses. Piezo injectors are also very expensive to replace when they go wrong, therefore by cleaning and maintaining these injectors, you could be saving a lot of money over time.

How do fuel additives work?

Fuel additives do a good job of cleaning carbon deposits from both the inside of your engine and the valves . However there is no substitute for cleaning the injectors properly.

Will this service save me money?

Fuel economy is reduced when contaminants build up, and block the flow of fuel in your injector. By reducing and removing this debris and replacing the injector microfilter, you are restoring engine horsepower and performance. Not only this, but the spray pattern will then produce a highly efficient combustion, reducing unnecessary fuel consumption and also reducing atmospheric pollution.

Do you take card?

We accept all the major debit and credit cards, including Visa, Maestro and Mastercard. There is a 2{554094910aed884339d37a3a53651f55a823c7e37d29152ed7a3ddb27423ef9f} additional charge for credit card transactions.

Will my manufacturers warranty be affected?
No. We only ever use genuine or OE replacement parts that comply with Block Exemption Regulations, so you are no longer tied to going to a dealership and paying inflated prices to have your car services just to keep warranty intact.


… don’t take our word for it!

  • Thank you for the excellent service and your staff are very polite and helpful,

    Kind Regards

    Review Testimonial
    Sam Bloomfield
  • I would just like to say thankyou to you and all the team at PK for keeping my Jag on the road the good news is I will be back next year when the mot is due again


    Steve Johnson | X Type Jaguar
  • I had the clutch on my van done here…super efficient service and all to a quoted price….highly recommended!

    Andrew Bishop
  • Went to see Paul the other day about a problem I had ‘egr valve’ he sorted it straight away even tho I had my remap done last year he was more than happy to help me – the aftercare was awesome and I would recommend him to anyone on my BMW 1 series forum – top bloke

    Simon Ward
  • As a regular customer I took the car in for a weird engine stumbling issue. No dashboard warning lights and no errors on the diagnostic. Was treated very considerately the first time as they could not duplicate the fault.
    Problem got worse so I took it back, again no errors or warning lights. The guys persevered, the technicians were really friendly, I got loaned a car and after some head scratching investigation they sorted it right out.

    They just need a bigger car park as they are no longer a well kept secret…………

    Ser Tunesalot
  • Well..what can I say I took the car to Paul for some advice and following that then had it booked in for an engine clean/flush.. this was carried out on the amazing machine that was provided to Paul and the guys from EDT Automotive. Being one of the first few customers to have the system carried out, I am overwhelmed with the results. The car is a lot more responsive both cold and up to temperature as well as being alot smoother and quieter on idle/tick over. I would highly recommend this system to regain the full potential of their vehicle.

    Further more from this after my EDT and having it run for a little bit. My first proper full fill up and run has gotten me 300 to half a tank where as I’d only be managing 200/210 IF I was lucky..the car pulls amazingly and is a lot smoother the drive 🙂

    Ian Betton
  • I’ve just left a little note on Google as a positive reference for you all , but thought that I would put pen to paper aswell.

    During the last few months I have found the service you offer amazing. From your workmanship to more than an honour of your guarantee, and your polite and efficient admin support.

    Thankyou for all you did to get my Land Rover up and running again.

    Joe- Land Rover
  • Paul has the patience of a saint, spent hrs on my Bora till it was running the best it would, definitely value for money !

    Steve Fletcher – Bora
  • Best garage in Lincoln!! Always sort you out and don’t rip you off! Work is always top notch! Friendly staff all round!

    Alistair Sawyer – Mini
  • Have been using PK for several years,they continue to provide Excellent customer service,fully trustworthy, highly qualified and good value for money.

    Brit Hall – Mercedes
  • Had a great morning at PK. They sorted out my running fault on the rollers. When it was on the rollers they did a check to see what power my golf GTI was running.
    Excellent service and would highly recommend.
    Thank you all at PK.

    Pete – Golf
  • The golf is running better than ever since you sorted out those sensors yesterday. Looking forward to our trackday on Wednesday now and looking forward to the remap even more. Great work so far guys… can heartily recommend you to anyone that wants a little extra boost in their life!
    Gordon – Golf
  • Excellent service will definitely use this garage again many thanks Rob boulter

    Rob Boulter – BMW
  • I can’t recommend PK Automotive highly enough. They responded to my ‘Who Can Fix My Car’ ad within a couple of hours. Were easy to deal with when booking in my car, and easily remedied a problem that two other garages had diagnosed ‘unfixable’. The price was absolutely right, and the diagnostics fee was so worth it! Thanks again. Rhiannon

    Rhiannon – Focus
  • Hi Paul,

    Thanks for sorting out my Sportage this afternoon, much appreciated. Best Wishes.

    Les Porter


    Les Porter – Sportage
  • Hi, I have been looking for a site that provides an independant method of providing feedback to you but couldn’t find one. I couldn’t leave it at that…just wanted to say thankyou for the gracious service you provided for me when a genuine Land Rover part you fitted for me failed. Although just out of the 12 month warranty you pursued this with Land Rover and fitted new parts free of charge. Further problems arose as a result of the failed part and you split the cost of an expensive repair with me. Truly remarkable service.

    Joe Bartrop – LR
  • Would like to thank you all for a thoroughly professional , courteous and informative experience yesterday.

    Car(SAAB 9-3) feels like a different vehicle.

    Would not hesitate to recommend your business to all. Thanks again ,

  • I first met Paul on a Saturday as he was closing up,I had a over boost issue with my l200 after a quick look I was helped out and booked in.after numerous visits to other so called experts in lincoln I found one who along with his team really are experts

    Karl Boucher
  • A big thank you to pk automotive for sorting my car out! Feels so much different and more responsive. I can’t recommend these enough for all the hard work and friendly service! A garage with the customer in mind

    David Hankinson
  • Thank you for making our breakdown experience stress free, you friendly staff and use off loan car enabled us to have our long weekend away, with only minor inconvenience.

    Steve Crofts Malvern