A check engine light or derate condition can mean anything from a minor sensor fault to a serious engine issue. Ontime Diesel Repair uses professional-grade diagnostic equipment to read fault codes, interpret data, and pinpoint the root cause — so you get the right fix the first time.
- Professional scan tools for all major diesel brands
- Full fault code reading and interpretation
- Engine misfire and injector fault diagnosis
- ECU and sensor diagnostics
- DEF/DPF and emissions system diagnosis
- On-site service — no shop visit required
Diagnostic Services We Offer
Fault Code Scanning
Complete ECM/ECU scan across all modules — engine, transmission, ABS, and body — to capture every active and pending fault.
Injector & Fuel System
Injector balance rate testing, fuel pressure checks, and injector fault isolation to restore proper combustion.
Sensor Diagnosis
MAF, MAP, O2, NOx, temperature, and pressure sensor testing to identify faulty readings causing derate or poor performance.
DEF/DPF System
Exhaust after-treatment diagnosis including DPF soot load, SCR catalyst efficiency, and DEF quality faults.
Turbocharger Diagnosis
Boost pressure testing, actuator checks, and turbo fault diagnosis to restore full power.
Electrical & Wiring Faults
Short circuit, open circuit, and CAN bus communication faults traced and repaired with precision.
Why Choose Ontime Diesel Repair?
- Professional-grade diagnostic tools — not generic code readers
- Experienced interpreting complex diesel fault codes
- We explain what we found in plain language
- On-site diagnosis saves you towing costs
- Available 24/7 for urgent derate or breakdown situations
24/7
Available
Fast
Response Time
Mobile
On-Site Service
All NB
Edmundston · Moncton & beyond
Check Engine Light On?
Don't guess — get a proper diagnosis. Call Ontime Diesel Repair and we'll come to you with the right tools to find the problem fast.