misfire
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Theme
Midnight Workshop
Clinical Precision
Forge & Steel
Diagnostic Workspace2019 Honda Civic EX • Bay 3
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Active Theme: Midnight Workshop
Precision-dark. Inspired by PicoScope, Datadog, and Tesla. Optimized for indoor shop environments, under-hood use, and night shifts. Reduces eye strain under mixed lighting.
Color System
Background
#0C0F14
Card
#141820
Panel
#1A1F2A
Hover
#1E2433
Accent
#00B4D8
Green
#2DC653
Amber
#FFB302
Red
#FF3838
Text
#E8EDF5
Text Dim
#8B97A8
Text Muted
#4A5568
Border
#252D3A
Engine RPMrpm
1,850
Coolant Temp°C
92
Vehicle Speedkm/h
65
BatteryV
14.2
Diagnostic Trouble Codes
P0301critical
Cylinder 1 Misfire Detected
P0171warning
System Too Lean (Bank 1)
P0420warning
Catalyst Efficiency Below Threshold
Freeze Frame — P0301
Engine Load
68.2%
RPM
3,200
Speed
72 km/h
STFT B1
+8.6%
LTFT B1
+4.2%
Coolant
88°C
AI INTELLIGENCE
Claude
Primary Diagnosis
Cylinder 1 Misfire — Likely Ignition Coil Failure
87%
Evidence & Reasoning
DTC correlation35%
P0301 + P0171 suggest ignition-related lean condition
Freeze frame30%
Captured at 3200 RPM, 68% load — weak spark under load
Fuel trim analysis25%
STFT +8.6% Bank 1 — lean from unburnt O2
Verification Steps
1
Measure coil #1 primary resistance (0.5-0.7Ω)
2
Compare spark duration coil #1 vs #2-4
3
Check connector for corrosion
Recommended Parts
Ignition Coil (Denso 673-2318)
$32-45In stock
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