Toggle Side Panel

Shopping Cart

No products in the basket.

Shopping Cart

No products in the basket.

Close search
Home / DTC / P0363 — Ignition coil failure detection - fueling disabled

P0363 — Ignition coil failure detection - fueling disabled

Detailed page for trouble code P0363.

32,882codes
59brands
10,425generic
22,457specific
All codes P-codes (Powertrain) B-codes (Body) C-codes (Chassis) U-codes (Network/User) Tesla Alerts
Reset
Code

P0363

LAND ROVER P — Powertrain

Ignition coil failure detection - fueling disabled

Brand: LAND ROVER
Type: P — Powertrain
Views: UK: 1,141 EN: 272 RU: 619
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Failed ignition coil (open/short or intermittent)
  • Damaged coil harness or connector (corrosion, broken wire, poor pin contact)
  • Faulty crank/cam position signal causing misfiring detection
  • Short to voltage or ground in the coil driver circuit
  • Faulty engine control module (ignition driver)
  • Failed or fouled spark plug or high-voltage lead causing excessive coil load

Symptoms

  • Check Engine Light (MIL) illuminated
  • One cylinder or random misfire(s); rough idle
  • Reduced power or limp mode (fueling disabled or limited)
  • Engine may not start if fueling disabled for affected cylinder(s)
  • Stored misfire or ignition coil circuit DTCs for one or more cylinders

What to check

  • Read all stored and pending DTCs and review freeze-frame/live data for misfire counts and battery voltage
  • Perform a visual inspection of the coil, connector, wiring harness, and spark plug
  • Swap the suspected coil with another cylinder to see if the code follows the coil
  • Measure coil primary and secondary resistance with an ohmmeter (compare to service spec)
  • Check for proper B+ supply and ground at the coil connector with key on
  • Use an oscilloscope to view primary waveform and coil driver switching if available

Signal parameters

  • Coil primary resistance: typically low (approx. 0.3–3.0 ohms) — consult vehicle spec
  • Coil secondary resistance: typically hundreds to thousands of ohms (approx. 5k–15kΩ) — check spec
  • Supply (B+) at coil connector: battery voltage with key ON (approx. 11–14.5 V)
  • ECU driver: switching pulse from near 0 V to B+; primary waveform should show a clean dwell and collapse event
  • No high-voltage arcing or insulation breakdown on secondary lead under load

Diagnostic algorithm

  1. Retrieve freeze frame and all related DTCs. Note cylinder number(s) referenced.
  2. Verify battery voltage and charging system (low voltage can cause false faults).
  3. Perform a visual inspection of coil(s), connectors, wiring harness, and spark plug(s) for damage, oil, or corrosion.
  4. Swap the suspect coil with a known-good coil from another cylinder. Clear codes and crank/run. If code moves to the new cylinder, the coil is likely bad.
  5. With ignition off, measure coil primary and secondary resistances and compare to specification. Replace coil if out of range or open.
  6. With connector connected, check for B+ and ground at the coil connector (key ON). Wiggle wiring to check for intermittent faults.
  7. Use a scope to observe the primary waveform while cranking/running; look for irregular dwell, missing pulses, shorted turns (slow collapse), or driver faults.
  8. Inspect/replace spark plug and high-voltage lead where applicable. Re-test.
  9. If wiring and coil check good, inspect ECM/ignition driver circuits and related grounds. Check for software updates or known service bulletins.
  10. After repair, clear codes and road-test to verify the fault does not return and misfire counts are normal.

Likely causes

  • Internal coil windings open or shorted on the affected coil
  • Corroded or loose connector pins at the coil or ECM
  • Wire chafing causing intermittent short to ground or B+ on the coil primary
  • Spark plug shorting or excessive gap causing coil to overheat and fail
  • Defective ignition driver transistor in the ECU

Fault status

⚠️ Status
P0363 - Ignition coil failure detection - fueling disabled. MIL ON. Fueling/ignition to affected cylinder(s) limited or disabled.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

P0350 P0351 P0352 P0353 P0354 P0360
Workshop Manuals

Repair manuals for LAND ROVER

3

Land Rover Defender 300Tdi — Workshop Manual (1996 model year)

Workshop Manual
Defender 300Tdi Years: 1996 Manual in English 7.5 MB
Short description

Official workshop manual for the Land Rover Defender 300Tdi (from 1996 model year). Contains specifications, adjustment, fault diagnosis and step-by-step repair and overhaul procedures for engine, transmission, axles, suspension, brakes, electrical and body. Intended for dealer workshops and trained technicians.

Contents
Key sections:
  • 01 INTRODUCTION
  • 04 GENERAL SPECIFICATION DATA
  • 05 ENGINE TUNING DATA
  • 07 GENERAL FITTING REMINDERS
  • 09 LUBRICANTS, FLUIDS AND CAPACITIES
  • 10 MAINTENANCE
  • 12 ENGINE Tdi
  • - Description and operation
  • - Fault diagnosis
  • - Adjustment
  • - Repair and overhaul procedures
  • 19 FUEL SYSTEM Tdi
Download

Land Rover Defender Workshop Manual Supplement & Body Repair Manual (1999 & 2002 MY)

Workshop Manual
Defender Years: 1999–2002 Manual in English 7.6 MB
Short description

Workshop Manual Supplement and Body Repair Manual for the Land Rover Defender. Includes general specifications, maintenance schedules, tuning data and step‑by‑step repair procedures for engine, transmission, suspension, brakes, electrical and body repairs. Covers Defender models from 1999 and 2002 model years.

Contents
Key sections:
  • 01 - INTRODUCTION
  • - Introduction
  • - Dimensions
  • - References
  • - Repairs and replacements
  • - Poisonous substances
  • - Fuel handling precautions
  • - Synthetic rubber
  • - Recommended sealants
  • - Used engine oil precautions
  • - Accessories and conversions
  • - Wheels and tyres
Download

Land Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)

Workshop Manual
Manual in English Pages: 494 7.1 MB
Short description

Land Rover Range Rover Electrical Library (LRL 0453ENG). Comprehensive manual covering fuse details, earth points, system descriptions, diagnostics and connector pin-outs for electrical troubleshooting and repair. Intended for technicians and service workshops.

Contents
Key sections:
  • 1 INTRODUCTION
  • 1.1 About this document
  • 1.2 Battery voltage
  • 1.3 Electrical precautions
  • 1.4 Battery disconnecting / charging
  • 1.5 Disciplines / greases
  • 1.6 Abbreviations
  • 1.7 HeVAC, sensors abbreviations
  • 1.8 How to use this document
  • 1.9 Connector detail format
  • 1.10 Fault diagnosis
  • 1.11 Wire colour codes
Download
Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email

Report

Harassment or bullying behavior
Contains mature or sensitive content
Contains misleading or false information
Contains abusive or derogatory content
Contains spam, fake content or potential malware

Block Member?

Please confirm you want to block this member.

You will no longer be able to:

  • See blocked member's posts
  • Mention this member in posts
  • Invite this member to groups
  • Message this member
  • Add this member as a connection

Please note: This action will also remove this member from your connections and send a report to the site admin. Please allow a few minutes for this process to complete.

Report

You have already reported this .