If you have noticed your vehicle has been using more fuel or it has failed an emission test, a faulty fuel injector could be the cause.
No need to worry, Lawfix Automotive offers high-quality fuel injector repair and fuel injector replacement services right here in Cardiff.
We’re a highly trusted Car Mechanic known for our honest and transparent approach to fixing vehicles. We offer highly competitive prices, fast turnarounds, and provide a complimentary collection and drop-off service for a stress-free experience.
EXCELLENT Based on 39 reviews Posted on Heather Jones2025-09-24Trustindex verifies that the original source of the review is Google. Excellent service and happy with jobPosted on Vishal Rao Dhaipule2025-09-17Trustindex verifies that the original source of the review is Google. Joey is excellent in what is does. also, does the job quickly and hassle free. He is the right man for the right job. 👌☺️Posted on Sharon Davies2025-09-11Trustindex verifies that the original source of the review is Google. ⭐️⭐️⭐️⭐️⭐️ I can’t recommend Law-Fix Automotive Ltd enough! Joe managed to book my car in straight away and carried out a really thorough inspection before purchase. He even sent me a detailed video of the underside (something I’d never normally get to see), talking me through everything clearly and in a way I could understand. He also gave it an extensive test drive and ran full diagnostics to check for any hidden issues. The communication was outstanding, the service above and beyond, and the pricing very fair. An honest, professional garage I’d recommend to absolutely everyone!Posted on Tomos Gwyn2025-08-30Trustindex verifies that the original source of the review is Google. Excellent service from start to finish from Joe - would highly recommend! 👊Posted on James Edmond2025-08-21Trustindex verifies that the original source of the review is Google. Joe is such a great guy. 100% trust him to keep my campervan running smoothly so I never have to stress about any van maintenance ever again I just leave it to him 😂. I always recommend him to all my friends and family 10/10Posted on Michael Jones2025-08-12Trustindex verifies that the original source of the review is Google. I recently used the garage for a clutch replacement. Joe is a courteous, friendly and very knowledgeable mechanic. He explained the problem to me thoroughly, setting-out details of the work to be done, together with a cost estimate (which was a really accurate prediction). The work was carried quickly and efficiently. A major, positive service provided in the Cardiff area is that a customer’s car is picked up from their home and returned when work on the car is completed. What a bonus that is!! Thank you, Joe, for a very a very hassle-free experience.Posted on Joe Cameron2025-07-22Trustindex verifies that the original source of the review is Google. Joe's a top bloke! Sorted my car issues quickly and was kept me updated throughout all of the process! Highly recommend!Posted on Adam Oakley2025-07-17Trustindex verifies that the original source of the review is Google. Joe's a top guy, wouldn't use anyone else 👍🏼Posted on M D2025-06-25Trustindex verifies that the original source of the review is Google. Called Joe to look at a coolant leak on my Smart car, Joe got me booked in straight away and instantly found the leak. Problem was fixed within a few hours and was sent two videos detailing the issue. Very good price and excellent service, will be coming back.Posted on Colin Parker2025-05-26Trustindex verifies that the original source of the review is Google. Absolutely 💯% brilliant service,kept me informed via video,would definitely recommend Law-Fix AutomotiveVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Your vehicle’s fuel injector is critical to the healthy functioning of your car. The injector plays the important role of controlling exactly how much fuel is delivered to your engine at any given time. When this part fails, it creates an imbalance within your vehicle, leading to fuel inefficiency and an increased risk of broader system failure.
Just some of the problems caused by a faulty fuel injector include:
Poor performance – Common symptoms include misfiring, poor acceleration and rough idling.
Higher running costs – Poor fuel efficiency, which manifests itself in having to pay at the pump more frequently.
Risk of more extensive damage – Ignoring this problem for too long can lead to broader issues with your vehicle, which can be extremely costly to repair.
Some common signs your vehicle may be suffering from a faulty fuel injector include:
A warning light on your dashboard
Strange smell coming from your vehicle while driving
Reduced fuel economy
Difficulty starting your vehicle
Visible leaks from the injector rail.
If you have noticed any of these signs, it’s always best to call in and book a diagnostic test, which will identify the core issue you are facing.
Not every fuel injector means you’ll need a complete replacement. Sometimes, we can repair the existing issue with your fuel injector. Here are some of the things we usually do to address a fuel injector issue:
Fuel injector cleaning – Sometimes, just cleaning out blockages can solve the issue.
Diesel fuel injector repair – Sometimes there are leaks or electrical faults that can be repaired without having to replace the entire unit.
Fuel injector replacement – If your existing injector cannot be repaired, we will replace it with a new high-quality unit.
Don’t worry, no matter what work we have to undertake, we will confirm pricing with you before any work commences.
We offer some of the best Fuel Injector Replacement pricing in Cardiff.
We keep you regularly updated and send progress photos.
No waiting forever. We tell you the date you can expect your car back and we stick to it.
We can collect straight from your door, saving you the stress of sorting a lift back home!
Depends on the make and model of the vehicle. Typically, prices start from £400-£500 per injector. We will confirm pricing before beginning work.
Prices start from between £300-£750 and will vary depending on the make and model of your vehicle.
It really depends. We will test all your injectors when running a diagnostic test. We will advise on the best course of action following this test.
Most petrol vehicles can be completed the same day. However, diesel vehicles are slightly more complex and may take longer than this. We will advise on timings once we have diagnosed the fault.
Absolutely. A leaking or blocked injector can damage other components of your vehicle if left untreated. We always advise dealing with this issue head-on when it’s identified.
Sometimes, a simple blockage can be the cause of the issue, and a replacement is not required.
We don’t recommend it. Driving around with faulty injectors will only exacerbate the issue and risk creating more serious problems with your vehicle.
Yes, we can help with petrol or diesel engines.
100%. We don’t start any work at our garage until we have received your full consent.