Hyderabad's Premier Fuel Injector Specialists

Written by Suresh Reddy, Service Advisor & Engine / Clutch Specialist · 12+ years

Ultrasonic Cleaning · Bench Flow Testing · Common-Rail Calibration

Bench-grade ultrasonic cleaning, flow and spray-pattern testing, common-rail calibration and GDI walnut blasting for petrol and diesel injectors — diagnosed on the engine and proven on the test rig before your car leaves our bay.

Ultrasonic Cleaning · Flow & Spray Testing · GDI Walnut Blasting · Common-Rail Calibration · Leak-Off Test · Bosch / Delphi / Denso. 1-Year Unconditional Warranty on Every Service

25,075+ Cars Serviced · 15+ Years Experience · 4.8 ★ 1,297+ Reviews · 1-Year Warranty

Quick answer

Injector service at Metre Per Second in Hyderabad is ₹1,200–₹3,500 per injector for ultrasonic cleaning and bench flow-testing, while a rebuilt or new common-rail injector runs ₹6,500–₹28,000 each depending on whether it is solenoid or piezo. Every job includes a back-leak test across all cylinders and injector coding after fitment, because an uncoded injector will misfire on a mechanically perfect engine. Book it when you get hard starting, a diesel knock at idle, black or white smoke, or a cylinder-specific misfire code.

Hyderabad's Injector Service Authority

Metre Per Second — Premium Car Service and Repair is Hyderabad's dedicated fuel-injection workshop. While general garages dump a bottle of additive in the tank and call it done, we pull the injectors, clean them ultrasonically and prove each one on a bench flow rig — so a rough idle, hard start or misfire is actually fixed, not masked.

Petrol and diesel injection are completely different worlds. A port MPFI injector, a high-pressure GDI/TSI/FSI direct injector and a Bosch, Delphi or Denso common-rail diesel injector each foul, leak and fail in their own way. Our technicians read live fuel-trim and injector-correction data on the OEM platform (VW/Audi ODIS, Mercedes XENTRY, BMW ISTA, Hyundai/Kia GDS), run cylinder-balance and leak-off tests, and only then decide whether a clean, a recalibration or a replacement is the honest answer.

Over 15 years and 25,075+ vehicles in Hyderabad, we've built our name on diagnosis you can trust, genuine Bosch/Delphi/Denso parts and a 1-year warranty. Free pickup and drop across KPHB, Kukatpally, Madhapur, Gachibowli, Hi-Tech City and Banjara Hills means your car reaches our injection bench without you losing a working day.

What We Repair

Ultrasonic Injector Cleaning

Injectors are removed and cleaned in an ultrasonic bath that lifts varnish, carbon and lacquer from the pintle and nozzle — restoring the correct spray cone instead of the dribble a clogged injector produces.

GDI / TSI / FSI Carbon & Walnut Blasting

Direct-injection engines (VW TSI, Audi FSI, BMW B48/B58, Mercedes GDI) bake carbon onto intake valves because no fuel washes them. We walnut-blast the ports and decarbonise the injectors to cure rough idle and cold-start misfires.

Common-Rail Diesel Injector Service

Bosch, Delphi and Denso CRDi/CRDI injectors — leak-off (return-line) testing, ultrasonic cleaning, nozzle and seat refurbishment and on-rig calibration to spec to fix hard starts, black smoke and knocking.

Flow, Spray & Cylinder-Balance Testing

Every injector is bench-tested for flow rate, spray pattern and leak-down so the set is balanced. On-car we run injector-correction and cylinder-contribution tests to find the weak cylinder before removal.

Injector Seals, O-Rings & Copper Washers

We renew combustion seals, lower O-rings and copper washers during refit to stop fuel weep, blow-by and the ticking 'chuff' of a leaking diesel injector seat.

Injector Replacement & Coding

When an injector is beyond cleaning, we fit genuine/OE units and write the new injector calibration (IMA/IQA) codes on the OEM tool so fuelling and emissions stay correct.

Our Repair Process

  1. Free Pickup & Symptom Logging: We collect your car anywhere in Hyderabad and log the exact symptoms — rough idle, hard start, misfire, smoke, poor mileage or a check-engine light.
  2. OEM Scan & Fuel-Trim Read: We read stored DTCs and live data (fuel trims, injector corrections, rail pressure) on ODIS / XENTRY / ISTA / GDS to confirm the fault sits in the injection system.
  3. Cylinder-Balance & Leak-Off Test: A cylinder-contribution test isolates the weak cylinder; on diesels a leak-off (return) test exposes injectors bleeding back excess fuel.
  4. Injector Removal: Injectors are removed carefully — seized diesel injectors are freed without damaging the head, and seats are inspected for carbon and erosion.
  5. Ultrasonic Clean & Bench Flow Test: Each injector is ultrasonically cleaned, then flow- and spray-tested on the rig. We share before/after numbers so you can see the difference.
  6. Fixed Quote & Your Approval: If any injector fails the rig, we quote a clear, itemised fixed price for cleaning, refurbishment or replacement. No work proceeds until you approve it.
  7. Refit, New Seals & Coding: Injectors go back with fresh seals/copper washers, torqued to spec, and we write new calibration codes where the system requires it.
  8. Road Test & 1-Year Warranty: We re-check fuel trims, road-test under load and hand the car back clean, with the work explained and a 1-year warranty.

Why Metre Per Second

Bench Flow Rig, Not Just Additives

We prove every injector on a flow and spray rig — measured numbers, not a fuel-tank cleaner and crossed fingers.

Petrol & Diesel Expertise

MPFI, GDI/TSI/FSI direct injection and Bosch/Delphi/Denso common-rail diesel — we service all of them in-house.

OEM Diagnostics & Coding

ODIS, XENTRY, ISTA, GDS and PIWIS for fuel-trim diagnosis and injector calibration (IMA/IQA) coding — dealer-accurate.

Genuine Bosch / Delphi / Denso Parts

Replacement injectors, nozzles and seals from the original suppliers — not the cheap remans that fail within months.

Free Pickup & Drop

Doorstep collection across KPHB, Kukatpally, Madhapur, Gachibowli, Hi-Tech City, Banjara Hills and Jubilee Hills.

1-Year Warranty

Every injector service and replacement is backed by a 1-year unconditional warranty.

Why Injector Service Is Needed — Common Causes

Poor-Quality & Adulterated Fuel

Contaminated or low-grade fuel leaves gum and varnish on the pintle, blocking the fine spray holes and skewing the spray pattern.

Short City Trips & Stop-Go Traffic

Hyderabad's stop-go driving never lets the engine fully clear deposits, so carbon and lacquer build up on injectors and intake valves.

GDI Intake-Valve Carbon

Direct-injection engines spray fuel straight into the cylinder, so no fuel washes the intake valves — carbon cakes up and causes misfires and rough idle.

Skipped Fuel-Filter Changes

An overdue fuel filter lets grit and water reach precision diesel injectors, eroding the nozzle and seat and triggering leak-off faults.

Worn Nozzles & Failed Seals

High mileage wears the nozzle and lets diesel injectors bleed back excess fuel; perished combustion seals cause weep, blow-by and the 'chuffing' tick.

Water & Moisture in the Fuel

Condensation and watered fuel rust internal injector components and rail parts, leading to imbalance, hard starts and rough running.

How To Avoid Injector Service — Prevention

Fuel From Trusted Pumps

Stick to reputed fuel stations and the correct octane/cetane grade — clean fuel is the cheapest injector insurance there is.

Change the Fuel Filter on Schedule

Renew the fuel filter at the maker's interval (more often on diesels) so grit and water never reach the injectors.

Periodic Injector Cleaning

A bench clean every 40,000–60,000 km keeps the spray pattern sharp and protects mileage and emissions before deposits cause damage.

Walnut-Blast GDI Engines Periodically

On direct-injection cars, decarbonise the intake ports periodically to stop valve carbon causing rough idle and cold-start misfires.

Don't Ignore Early Symptoms

Rough idle, hesitation, a faint fuel smell or a slight mileage drop are early injector warnings — treat them before a cylinder is damaged.

Run Quality Engine Oil & Service On Time

Fresh oil and on-time servicing keep combustion clean, which slows the carbon build-up that fouls injectors and valves.

Pricing

ServicePrice (₹)Notes
Injector Diagnostic & Fuel-Trim Scan₹999Adjusted into the job if you proceed
Ultrasonic Cleaning (Petrol MPFI)₹3,499 – 5,999Per set, after inspection
GDI / TSI / FSI Walnut Blasting₹7,999 – 14,999Direct-injection decarbonise
Common-Rail Diesel Injector Service₹2,500 – 6,000Per injector, clean & calibrate
Injector Flow & Spray Bench Test₹1,500Per set, with before/after report
Injector Replacement (genuine/OE)₹On inspectionBosch / Delphi / Denso + coding

All specialty repair prices are confirmed with a fixed quote after a free inspection. Flat-rate services are the same price regardless of car brand.

Cost, Turnaround and Warranty at a Glance

What injector service typically costs at our KPHB workshop, how long the car stays with us, and what the job is covered by.

Typical cost
₹1,200 – ₹28,000 per injector
Typical turnaround
1–2 working days
Warranty
1 year on cleaned and replaced injectors

Recent Repairs at Our Workshop

Diesel Hard-Start & Smoke Fixed Without New Injectors

Hyundai Creta · 1.5 CRDi (Bosch common rail)

Problem: Hard starting, black smoke and a knock on a high-mileage diesel. Another garage had quoted a full set of new injectors.

Work done: A leak-off test showed two injectors returning excess fuel. We ultrasonically cleaned the set, refurbished the nozzles and seats, calibrated on the rig and renewed the copper washers.

Outcome: Instant starts, no smoke and the knock gone — at a fraction of the four-injector replacement quote, with a 1-year warranty. (₹11,500)

TSI Rough Idle & Misfire Cured With Walnut Blasting

Volkswagen Polo · 1.0 TSI (GDI)

Problem: Persistent rough idle and intermittent cold-start misfire with a P0300 code. Owner feared a coil-pack or engine fault.

Work done: Inspection found heavy carbon on the intake valves and fouled direct injectors. We walnut-blasted the ports, ultrasonically cleaned the injectors, fitted new seals and cleared the adaptations.

Outcome: Misfire eliminated, idle smoothed out and throttle response restored — fuel economy improved noticeably. (₹12,000)

Petrol Hesitation & Mileage Drop Solved on the Bench

Maruti Baleno · 1.2 MPFI (Bosch)

Problem: Hesitation on acceleration and a steady drop in fuel economy with an occasional rough idle.

Work done: Bench flow testing showed two injectors flowing low with a poor spray cone. We ultrasonically cleaned the set, balanced the flow, renewed O-rings and road-tested.

Outcome: Smooth pick-up restored and mileage back to normal — a small fraction of replacement cost. (₹4,500)

Customer Reviews

★★★★★ Karthik Reddy, KPHB — Volkswagen Polo TSI

My TSI had a rough idle and cold-start misfire. They walnut-blasted the intake and cleaned the GDI injectors, showed me the carbon they pulled out. Idle is smooth again and mileage is back.

★★★★★ Sandeep Varma, Kukatpally — Hyundai Creta CRDi

Hard starting and black smoke on my diesel. A leak-off test found two injectors bleeding back. They cleaned and recalibrated them on the bench instead of selling me four new ones. Honest workshop.

★★★★★ Pooja Nair, Gachibowli — Maruti Baleno

Hesitation and poor mileage. Ultrasonic clean and flow test fixed it for far less than the dealer quote. They even shared the before/after flow numbers. Very transparent.

★★★★★ Imran Pasha, Banjara Hills — Mercedes-Benz C-Class

Misfire code on the GDI engine. They scanned on XENTRY, found the fouled injector, cleaned the set and recoded it. Free pickup from home made it effortless. Genuinely dealer-level.

★★★★★ Vamshi Krishna, Madhapur — Toyota Innova Crysta

Rough running and a faint fuel smell. Turned out to be a leaking injector seal. They replaced the seals and copper washers and balanced the set. Runs perfectly now.

★★★★★ Rohit Sharma, Jubilee Hills — BMW 330i

Cold-start stumble on the B48. They decarbonised and flow-tested the injectors, did the coding and road-tested it. Smooth from the first crank now, with a one-year warranty.

Technical terms explained

The injector service terms that appear on our estimates, job cards and diagnostic reports — in plain English, written by the technicians who use them.

Common rail
A diesel fuel system where a high-pressure pump keeps a shared rail at 1,600–2,500 bar and the ECU decides independently when each injector opens, allowing multiple injections per combustion event. Because pressure is decoupled from engine speed, it delivers quieter, cleaner combustion than older pump-line-nozzle systems. It is also unforgiving of contaminated or water-laden diesel, which erodes the injector nozzle seat within a few thousand kilometres.
Injector coding (IMA / ISA / IQA)
Every common-rail injector is flow-tested at the factory and stamped with a correction code that tells the ECU how this particular injector deviates from nominal. After fitting or exchanging an injector, that code must be written to the correct cylinder with a diagnostic tool. Skipping the coding step leaves the ECU commanding wrong fuel quantities, which produces rough idle, smoke and false misfire codes on a mechanically perfect engine.
Back-leak test
A workshop test that measures the fuel each injector returns to the tank through its leak-off line while the engine runs at a set speed. An injector with a worn control valve returns far more than its siblings, bleeding rail pressure and causing hard starting and low-power complaints. Comparing return volumes across cylinders identifies the faulty injector without removing anything from the engine.
Piezo injector
An injector actuated by a stack of piezoelectric crystals that expand within about 0.1 milliseconds when charged, instead of a slower solenoid. The speed allows up to seven injection events per cycle for quieter, lower-emission combustion. The trade-off is cost and sensitivity: piezo stacks must be tested on a calibrated bench and are only worth rebuilding when the nozzle rather than the stack has failed.

Frequently Asked Questions

How do I know if my car needs fuel injector service?

Watch for rough idle, hard starting, hesitation or jerks on acceleration, a drop in mileage, black smoke (diesel), a faint fuel smell, misfires or a check-engine light. Any of these points to fouled, leaking or imbalanced injectors.

Is injector cleaning by additive as good as ultrasonic cleaning?

No. A fuel-tank additive can help mild deposits, but it can't restore a badly clogged injector or prove the spray pattern. We remove the injectors and clean them ultrasonically, then flow- and spray-test each one so you get measured results.

Do you service GDI/TSI/FSI direct injectors and diesel common-rail injectors?

Yes — both. We walnut-blast and decarbonise GDI/TSI/FSI petrol engines and service Bosch, Delphi and Denso common-rail diesel injectors with leak-off testing, ultrasonic cleaning, nozzle refurbishment and on-rig calibration.

Will I always need new injectors?

No. Most injectors are restored by ultrasonic cleaning, seal renewal and recalibration. We only recommend replacement when a nozzle is worn beyond spec or an injector fails the flow rig — and we prove it on the bench first.

How much does injector service cost in Hyderabad?

Petrol ultrasonic cleaning typically runs ₹3,499–₹5,999 per set, GDI walnut blasting ₹7,999–₹14,999, and diesel common-rail injector service ₹2,500–₹6,000 per injector. You always get a fixed quote after a free inspection.

Do you offer pickup and drop?

Yes, free pickup and drop across KPHB, Kukatpally, Madhapur, Gachibowli, Hi-Tech City, Banjara Hills and Jubilee Hills.

How long does an injector service take?

A petrol ultrasonic clean is usually same-day to next-day. GDI walnut blasting and diesel common-rail injector work typically take 1–2 days depending on removal and parts availability.

Is there a warranty?

Yes — every injector service and replacement is backed by a 1-year unconditional warranty.

How To Book

  1. Call or WhatsApp: Reach us on 8555824915 and describe the symptoms. We confirm whether it's a petrol or diesel injection system.
  2. Free Pickup: We collect your car from your home or office anywhere in Hyderabad.
  3. Diagnosis & Fixed Quote: We scan, run a cylinder-balance/leak-off test, bench-test the injectors and send an itemised, fixed price for approval.
  4. Service & Warranty: We clean/calibrate or replace, road-test, deliver your car back, and back the work with a 1-year warranty.

Popular Models & Related Services

Volkswagen Golf · Skoda Kodiaq · Audi Q7 · Audi A6 · Mercedes-Benz C300 · BMW 330i · BMW 520d · Volvo XC60

Manual Carbon Cleaning · DPF Repair · ECM / TCM Repair · Engine Overhaul · Electrical Repair

Cars we most often do injector service on

Pick your brand for the full model coverage list, the systems fitted and what the job involves.