Quick answer
Engine Misfiring: the most common causes are worn or fouled spark plugs, faulty ignition coil, dirty fuel injector not delivering fuel to specific cylinder. Metre Per Second (KPHB, Hyderabad) diagnoses the exact fault and repairs it same-day — typical work runs ₹800 – ₹4,000, with free pickup and drop across Hyderabad, OEM-grade parts and a 1-year warranty. Call +91 8555824915.
What causes Engine Misfiring?
These are the faults we most often find behind this symptom on cars driven in Hyderabad's heat and stop-go traffic:
- Worn or fouled spark plugs (most common) – poor spark causing missed combustion cycle
- Faulty ignition coil – no spark to specific cylinder
- Dirty fuel injector not delivering fuel to specific cylinder
- Low compression in cylinder from worn piston rings or burnt valve
- Vacuum leak causing lean mixture in specific cylinder area
Repairs & indicative pricing (INR)
| Repair | Indicative price |
|---|---|
| Spark plug replacement (all cylinders) | ₹800 – ₹4,000 |
| Ignition coil testing & replacement | ₹2,000 – ₹8,000 per coil |
| Injector clean for misfiring cylinder | ₹3,000 – ₹6,000 |
| Compression test | ₹1,000 – ₹2,000 |
| OBD misfire diagnosis | ₹500 |
Final price depends on diagnosis. We share a written estimate before any work — no surprises. Free pickup & drop across Hyderabad, OEM-grade parts and a 1-year warranty.
Frequently asked questions
My car has a P0300 random misfire code — what should I check first?
P0300 (random misfire) should be diagnosed in this order: 1) Swap spark plugs — check if plugs are fouled or worn. 2) Test ignition coils — a faulty coil will misfire the same cylinder consistently. 3) Check injector operation — a blocked injector misfires under load. 4) Compression test — if one cylinder has low compression, it's a mechanical issue (worn rings or burnt valve). Metre Per Second performs all these checks starting with the OBD scan (₹500).
Related car problems we fix in Hyderabad
Why Hyderabad drivers choose Metre Per Second
- Factory-grade diagnostics — we read the real fault, not just a generic code.
- Free pickup & drop across all of Hyderabad — KPHB, Kukatpally, Miyapur, Hitech City, Gachibowli, Banjara Hills, Secunderabad and more.
- 1-year unconditional warranty on parts and labour.
- Transparent, written estimates — typically 30–50% below authorised dealers.