Emissions & Fuel-Injection Diagnostics
Stop Guessing—Start Diagnosing
Dealer-grade injector & emissions testing for Renault & Vauxhall vans
Black smoke, rough idle or a failed MOT opacity test usually trace back to injector imbalance or sensor faults. At DXR Motors we use OEM-level equipment to identify the real cause—saving you from costly “parts darts”.
Typical Symptoms We Solve
- Diesel knock or rough idle
- Excessive smoke (black or white)
- Flat spots on acceleration
- Poor MPG despite clean DPF / EGR
- P0201–P02XX injector circuit codes
- Failed smoke opacity test at MOT
Diagnostic Toolkit
| Tool | Purpose |
|---|---|
| Bosch KTS + OEM Clip/Tech 2 | Live rail pressure, injector correction, lambda & NOx readings |
| PicoScope | Crank/cam sync, injector waveform analysis |
| Injector Leak-Off Test | Measures return flow (balances within 10 % spec) |
| Smoke Meter (opacity) | Pre-MOT emission check |
Our Process
- Code Read & Freeze-Frame
- Live Data & Leak-Off Test
- Pressure / Waveform Analysis
- Targeted Repair – injector coding, sensor replacement, wiring fix
- Road-Test & Final Smoke Check
Result: Smooth idle, restored power, MOT-compliant emissions.
Pricing (Guide)
| Service | From* |
|---|---|
| Full injector & emissions diagnostic | £90 |
| Injector coding (per unit) | £35 |
| Injector removal / refit** | £75 |
| Smoke opacity pre-test | £30 |
*Prices exclude VAT & parts. **Removal labour varies by model; stuck injectors quoted separately.
Warranty: 12-month / 12 000-mile cover on injectors we supply & fit.
All coding documented for your service history.
Book Diagnostics Now
Call:
07751 216 895
Email:
[email protected]
Workshop: Unit 5, Goodview Road, Basildon, SS14 3DN (appointment only)
Trusted for safety, chosen for expertise — let’s get your van running clean and efficient again.