Royal Prince Auto Care
Mechanical

Injector Cleaning and Replacement Service Dubai

Car injector replacement in Dubai at Royal Prince Auto Care, DIP 2. We test each injector, then replace and code a failed one.

Mechanic fitting fuel injectors into the fuel rail of an engine
Google rating
4.6552 reviews
Years of experience
16+Years of experience
Brands serviced
51Brands serviced
  • FreePickup and drop-offBy driver only, with a service contract
  • FreeCar washWith service
  • DealershipAlternative
  • ServiceContracts
  • OEMParts
  • Up to 35% offOn repairs
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Get an estimate for your car

Tell us your car, what it needs and how to reach you. A service advisor will call you back to talk through the work.

Due for a routine service?
  • Free pickup and drop-off by driver, with a service contract
  • Free car wash with every service
  • Up to 35% off on repairs
What it covers

What Our Car Injector Replacement Covers

The work this service covers at our Dubai Investment Park workshop. Open the full details below.

  • 01Fault code and fuel trim reading
  • 02Fuel pressure and injector resistance tests
  • 03Diesel backleakage and fuel contamination tests
  • 04Port injector replacement on petrol engines
  • 05Direct injector replacement with a new decoupling element
  • 06Diesel common rail injector replacement
  • 07Injector coding to the engine ECU
Warning signs

What are the signs of a faulty fuel injector?

A faulty fuel injector shows 6 signs. The driver notices misfiring with the warning light, a rough idle, hard starting, higher fuel use, low power or a fuel smell. Each sign comes from an injector that leaks, clogs, wears or fails electrically, or from a fault elsewhere in the fuel system.

Misfiring and the engine warning light

An engine runs on the right ratio of fuel to air. An injector that sprays too much or too little upsets that ratio in its cylinder.

The cylinder misfires and the ECU lights the warning lamp. We test the injector on the misfiring cylinder and replace an injector that fails that test.

A rough or unstable idle

A Jeep Renegade, Compass or Commander with the 1.3 MultiAir engine and a leaking injector shows an unstable idle and abnormal engine noise. We confirm the leak, then replace the injectors that the fix for that engine covers.

Hard starting or a long crank

A leaking diesel injector stops the engine from starting or makes it crank for a long time before it fires. Limp-home mode, a protective mode the engine control unit enters on a fault, is an early sign of a failing injector. We find the leaking injector and replace it.

Higher fuel use

A worn diesel injector raises fuel consumption and makes starting poor, and the ECU stores a drift code for its cylinder. On petrol engines, reduced fuel efficiency sits beside misfiring and trouble starting as an injector symptom. We find the injector that has drifted and replace it.

Low power and poor acceleration

Low power and poor acceleration show when the fuel supply falls short of what the engine demands. The same symptoms also come from causes outside the injector. We test whether the injector or its fuel supply is at fault and replace the failed part.

A fuel smell under the bonnet

A fuel smell under the bonnet comes from a leak at an injector seal, the fuel rail or a fuel line. We check every fuel line, hose and joint for leaks and damage, then renew the leaking seal, hose or line.

What it covers

What our car injector replacement includes

Our injector work runs from the first reading to the coded refit:

  • Fault code and fuel trim reading
  • Fuel pressure and injector resistance tests
  • Diesel backleakage and fuel contamination tests
  • Port injector replacement on petrol engines
  • Direct injector replacement with a new decoupling element
  • Diesel common rail injector replacement
  • Injector coding to the engine ECU
  • Cleaning of sound, fouled injectors
  • Fuel line, hose and filter checks

Our car injector replacement in Dubai covers 3 injector types. A port injector sprays petrol into the intake port, and a direct injector takes petrol at 40 to 350 bar. A diesel common rail injector runs above 1,400 bar.

What we see

What causes fuel injector failure in Dubai?

Fuel injector failure in Dubai comes from 6 causes: deposits, wear, electrical faults, internal leaks, diesel injector wear and contaminated fuel.

  • Deposits: fuel deposits collect over time, clog the injector and restrict its fuel supply.
  • Wear: wear and tear damages the injector until fuel leaks from it.
  • Electrical faults: an injector whose resistance reading falls outside the vehicle's technical data has an electrical fault.
  • Internal leaks: on the Hyundai 2.0 T-GDI Theta II engine, a broken filter inside the injector lets it leak internally and set misfire codes.
  • Diesel injector wear: a worn common rail injector leaks back more fuel than its specification allows.
  • Contaminated fuel: contamination in the tank damages the injectors that the fuel passes through.

UAE standards cap the sulphur in petrol and diesel at 10 ppm. UAE emission rules also set particulate mass and number limits for cars with direct-injection petrol engines.

We test which cause applies to your car, then fix that cause with a cleaned injector, a new seal or a new injector.

In Dubai conditions

Car injector replacement in Dubai: the results of a correct fit

Royal Prince Auto Care fits each injector to the rules of its engine, and you get these results:

An even idle from the first start

A new diesel injector without its code entered in the ECU gives poor running and idling and sets fault codes. A coded injector lets the engine idle evenly as soon as it starts.

A protected catalytic converter

Jeep warns that driving a Wrangler on with a severe engine fault can overheat the catalytic converter and damage it and the car. A sound injector set takes that heat load away from the converter.

A sealed high-pressure circuit

Kia warns that a fuel jet from a leak in the injection system of a general-region diesel NQ5 Sportage can cause serious injury. Correctly seated injector seals keep that fuel inside the rail and the lines.

No breakdown from a neglected injector

A faulty diesel injector left in the engine can make other parts fail and end in a breakdown. Replacing it early keeps the fault to one part.

A car ready for the emissions check

Exhaust emissions are one item of the RTA periodic test, and a pass is required to renew registration. Injectors that meter fuel correctly send the car to that test with its fuel faults repaired.

Fuel use back where it belongs

A leaking or worn injector raises fuel consumption. Replacing it removes that cause of the extra fuel use.

In depth

Do you replace one fuel injector or the full set?

The maker's rule for the engine and the test result decide whether one fuel injector or the full set is replaced. The Hyundai 2.0 T-GDI Theta II is one example. Hyundai's fix for its internal leaks on the Elantra N, Kona N and Veloster N replaces all 4 injectors with a kit.

FCA replaces all fuel injectors and the high-pressure tube on a leaking Jeep Renegade, Compass or Commander 1.3 MultiAir. On the 6.4 litre SRT Hemi, FCA tells technicians not to replace all 8 injectors automatically.

All the injectors of a diesel engine have covered the same distance, so the complete set is tested when one fails. We follow the maker's rule for your engine and replace each injector that fails its test.

In Dubai conditions

Car fuel injector cleaning service in Dubai: clean or replace?

Cleaning suits a fuel injector that is sound but fouled, and replacement suits one that leaks, has an electrical fault or has worn. In a direct-injection engine test, a deposit in the tip counterbore cut injector flow by 2.21 per cent at 150 bar. HC and particulate emissions rose with it.

In a second test, removing the tip deposits from mildly fouled injectors cut particulate emissions by up to about 45 per cent. NOx rose by about 12 per cent in the same test.

We clean a sound, fouled injector and replace one that fails our injector tests.

Prevention

How injector replacement works at Royal Prince Auto Care

Our injector replacement follows 6 steps, from the first code read to the final check.

Record the symptoms and read the codes

We ask whether the fault appears at a cold start, at idle, under load or as a fuel smell. We read the fault memory and the short-term and long-term fuel trims, which shift when an injector meters the wrong amount.

Test the pressure, wiring and fuel

We fit a gauge, run the pump and compare the fuel pressure with the maker's figure. Each injector's resistance is compared with the vehicle's technical data, and one outside the range is replaced. On a diesel, we test the fuel for contamination.

Find the injector that fails

On a diesel, we test the backleakage of every injector on a sealed rail and confirm the rail pressure. FCA's leak check on the Jeep 1.3 MultiAir is an endoscope view through the spark plug holes, 1 minute per injector with the ignition on. The injector that fails is replaced.

Release the pressure before opening the system

Kia forbids work on the injection system of a general-region diesel NQ5 Sportage with the engine running or within 30 seconds of switch-off. The pump, rail, injectors and pipes stay under high pressure after the engine stops. We follow that rule on every high-pressure system we open.

Fit the injector with its seals

On a direct injector, we fit a new decoupling element and remove and refit the PTFE combustion chamber ring, the O-ring and the support washer. The injector and its fuel lines go back to the maker's torque figures.

Code the injectors and confirm the repair

We write each new diesel injector's trim code to the engine ECU, and code a direct injector where the engine calls for it. We then clear the fault codes and read them again with the engine running.

Message us on WhatsApp to book an injector check for a rough-running engine.

Cost and value

What decides the cost of car injector replacement in Dubai?

The cost of car injector replacement in Dubai depends on 5 factors: injector type, injector count, seals and pipes, coding, and tests. The count follows the fault or the maker's rule for the engine, and direct and diesel injectors add seals and coding steps. Our tests find the fault that sets those factors.

A UAE recall covers Mercedes-Benz C 205, E 213 and G 463 petrol models of 2019 to 2020. On those cars, a particle in the fuel rail can cause a leak between rail and injector. Mercedes-Benz replaces the fuel rail and the injectors.

We read the code and refer a car under that recall to a Mercedes-Benz dealer.

Book the injector tests on WhatsApp with your car's model and engine size.

Why Royal Prince

Why choose Royal Prince Auto Care for fuel injector work

Our injector work stands on these methods:

The cause before the part

Stalling or a no-start can point to injector timing, but the fault can also sit elsewhere on the car. We test the injector before we condemn it, and repair the fault where we find it.

The fuel filter checked

A restricted fuel filter on a petrol Hyundai Tucson NX4 causes surging, power loss and hard starting, 3 signs that look like an injector fault. We check the filter and replace a restricted one.

The right injector for each cylinder

GM has seen the wrong injector fitted to a cylinder of its V6 and V8 petrol engines. The wrong part skews the fuel trims and gives a rough idle. We order each injector by the parts catalogue for that engine and cylinder.

Seals judged by the maker's rule

FCA allows the O-rings of a 6.4 litre SRT Hemi injector to go back in when they show no cuts, tears or deformation. We inspect each reused seal against the maker's rule and replace a damaged one.

A clean open fuel system

Common rail systems work to fine tolerances, and injector refits are done in clean conditions from start to finish. We cap the open ports and keep dirt out of the rail and the lines.

Clear referrals

Petrol direct injection also runs in hybrid drives. We refer hybrid fuel systems, and injectors whose coding needs the maker's own tester, to the maker's dealer.

In Dubai conditions

How do you make fuel injectors last longer in Dubai?

Fuel injectors last longer in Dubai with 4 habits: detergent petrol, no stray cleaners, the maker's additive and a diesel filter matched to the fuel. Each habit keeps deposits, solvents or dirt away from the injector seals and nozzles. The additive applies where the maker's schedule lists one.

Petrol with detergents

For the Wrangler, Jeep recommends unleaded petrol of the right octane that carries detergent, corrosion and stability additives.

No stray fuel system cleaners

Jeep warns Wrangler owners against indiscriminate fuel system cleaners, because their active solvents can harm fuel system gaskets and diaphragms.

The maker's additive on its schedule

Hyundai lists one bottle of its fuel additive every 10,000 km or 12 months for the Tucson NX4 G2.5 GDi and G1.6 T-GDi. That schedule applies where fuel meeting EN228 is not available. Hyundai also says not to mix other additives.

A diesel filter matched to the fuel

Hyundai's schedule replaces the Tucson NX4 D2.0 fuel filter every 30,000 km on EN590 diesel and every 15,000 km on other diesel. We replace the fuel filter at the interval your car's schedule sets for the fuel it uses.

Book it in

Ready to Book Your Car Injector Replacement?

Tell us the make, model and what the car is doing, and we book it in at our Dubai Investment Park 2 workshop. Free pickup and drop-off by our driver comes with a service contract. Every service comes with a free car wash.

Call +971 50 216 0864
Makes we work on

Specialists in 51 car brands

Luxury, American, European, German, Japanese and British cars, serviced by technicians who know them well.

See every brand

Driving something else? Call us with the make and model.

Scheduled maintenance

Service packages worth booking

Regular servicing keeps small faults from turning into big repairs. Both packages are carried out by certified technicians using genuine or quality parts.

Every 6 months / 5,000 to 10,000 km

Car Minor Service

  • Oil change and filter replacement
  • Air filter cleaning
  • Suspension joint inspection
  • Brake check: pads, discs and fluid
  • Wiper blade check
Every 12 months / 20,000 km

Car Major Service

Full check-up
  • 360-degree check-up, 60 points
  • Engine oil filter replaced
  • Air filters replaced, where needed
  • A/C cabin filters replaced, where needed
  • A/C drive belt replaced, where needed

Each package is quoted for your car. Call +971 50 216 0864 with the make and model for an estimate.

Google reviews

Trusted by Dubai drivers

Reviews left on our Google listing, shortened in places for length.

4.6

552 Google reviews

  • “Best garage I've ever visited. I'd had electrical issues with my car for almost 2 years. These guys told me straight away what the issue was. Very experienced, fair prices, and the car runs like it's brand new again.”
    SShehan Abeysinghe3 years ago
  • “Very professional, and the staff are polite and dedicated. Used to dealer service for my Nissan Patrol, I came here the first time and ended up taking a long-term service contract. Now I send all my other cars here too.”
    MM RazzaqiNissan Patrol · 3 years ago
  • “The best in town by all means. Honest, fair and professional. They repaired my Nissan well and did a great paint and detailing job, with continuous updates during the repair and follow-ups afterwards.”
    SShady ElashiNissan · 3 years ago
  • “I'd always had my Prado maintained at the dealer, but this time they wanted to charge a massive amount for some A/C work. I came here instead and couldn't be happier with the quality of service.”
    AAzhar JamilToyota Prado · 2 years ago
  • “Had a headlamp replaced and I'm extremely satisfied. The staff were professional, knowledgeable and efficient, diagnosed the issue quickly, and the pricing was fair.”
    AAdarsh Prabhasurendran2 years ago
  • “Very pleased with the customer service at the Royal Prince DIP branch. Professional and attentive throughout. Highly recommended.”
    SShoaib Hassan2 years ago

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Our workshop

Step inside our workshop

Dubai Investment Park 2. Ramps, a body shop and a detailing bay, all in one place.

Cars on the ramps inside the Royal Prince Auto Care workshop
A Royal Prince Auto Care technician working under a car
The Royal Prince Auto Care workshop in Dubai Investment Park 2
FAQs

Car Injector Replacement questions, answered

Do new fuel injectors need coding?

Yes. Each diesel common rail injector carries its own trim code, because no 2 injectors are exactly alike. The ECU uses the code to compensate for the differences. Direct petrol injectors are coded where the engine calls for it.

Is it safe to keep driving with a faulty fuel injector?

No. Hyundai tells Tucson NX4 owners to stop using the car while it misfires or has lost clear performance. A Jeep Wrangler whose engine light flashes is close to severe converter damage and lost power, and Jeep asks for service at once.

Which fault codes show a faulty fuel injector?

P0200 flags a fault on more than 1 injector, and P0201 to P0208 flag a problem with a specific injector. P0300 is a misfire across more than 1 cylinder. A leaking Jeep 1.3 MultiAir injector also sets P0087 for low rail pressure, and a worn diesel injector sets a drift code such as P0263.

Does car injector replacement in Dubai cover hybrid cars?

No. We refer hybrid fuel system work to the maker's dealer. We replace injectors on petrol, direct-injection and diesel cars without a hybrid drive.

Get in touch

Book Your Car Injector Replacement in Dubai

Call or send a WhatsApp message with the make, model and year and what the car is doing, and book it in at our Dubai Investment Park 2 workshop.

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