Section 143 (Engine Control System & Engine Mechanical - Testing & Troubleshooting)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2020 Honda Fit, 2019 Honda Fit, 2018 Honda Fit, 2017 Honda Fit, and 2016 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.
- Component Location Index
- Catalytic Converter System Component Location Index
- EGR System Component Location Index
- EVAP Control System Component Location Index
- Electronic Throttle Control System Component Location Index
- Engine Block Assembly Component Location Index
- PCV System Component Location Index
- PGM-FI System Component Location Index
- VTEC / VTC System Component Location Index
- Connector For Inputs And Outputs
- Overhaul
- Check
- General Information
- Troubleshooting
- How To Information
- How to Troubleshoot the Fuel and Emissions System
- Intermittent Failures
- Service Information
- Opens and Shorts
- Starter System Indication
- How to Use the HDS (Honda Diagnostic System)
- If the MIL did not stay on
- If you cannot duplicate the DTC
- HDS Clear Command
- Scan Tool Clear Command
- DTC Clear
- How to End a Troubleshooting Session (required after any troubleshooting)
- How to Troubleshoot Circuits at the PCM Connectors
- OBD Status
- How to Set Readiness Codes (KA / KC models)
- Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)
- Catalytic Converter Monitor and Readiness Code
- Evaporative Emission (EVAP) Control System Monitor and Readiness Code
- Air Fuel Ratio (A/F) Sensor Monitor and Readiness Code
- Air Fuel Ratio (A/F) Sensor Heater Monitor Readiness Code
- Misfire Monitor and Readiness Code
- Fuel System Monitor and Readiness Code
- Comprehensive Component Monitor and Readiness Code
- EGR Monitor and Readiness Code
- How to Troubleshoot the Fuel and Emissions System
- Symptom Troubleshooting
- After warming up, idle speed is above specifications without load (MIL works OK, no DTCs set) (KA / KC models)
- After warming up, idle speed is below specifications without load (MIL works OK, no DTCs set) (KA / KC models)
- Cold fast idle too high (MIL works OK, no DTCs set) (KA / KC models)
- Cold fast idle too low (MIL works OK, no DTCs set) (KA / KC models)
- Difficult to refuel (MIL works OK, NO DTCs set) (KA / KC models)
- Engine is hard to start (MIL works OK, no DTCs set) (KA / KC models)
- Engine starts but stalls immediately (MIL works OK, no DTCs set, immobilizer indicator stays on or flashes) (KA / KC models)
- Engine will not start (MIL works OK, no DTCs set) (KA / KC models)
- Engine will not start (MIL works OK, no DTCs set, immobilizer indicator stays on or flashes) (KA / KC models)
- Engine will not start and HDS does not communicate with the PCM (MIL comes on and stays on, no DTCs set) (KA / KC models)
- HDS does not communicate with the PCM or the vehicle (KA / KC models)
- Idle speed fluctuates (MIL works OK, no DTCs set) (KA / KC models)
- Low power (MIL works OK, no DTCs set) (KA / KC models)
- MIL comes on and stays on, or never comes on at all, no DTCs set (KA / KC models)
- Testing
- Description
- Catalytic Converter System Description - Overview
- EGR System Description - Overview
- EVAP System Description (KA / KC models)
- Electronic Throttle Control System Description
- PCV System Description - Overview
- PGM-FI System Description - Components (KA / KC models)
- PGM-FI System Description - Electronic Control
- PGM-FI System Description - Ignition Timing Control
- PGM-FI System Description - Injection Control
- PGM-FI System Description - OBD
- PGM-FI System Description - On-Board Snapshot
- VTEC / VTC System Description - VTC
- VTEC / VTC System Description - VTEC
- Inspection & Adjustment
- APP Sensor Signal Inspection
- Block and Piston Inspection
- Breather Line and Suction Line Inspection (KA / KC models)
- Cam Chain Inspection
- Camshaft Inspection
- Camshaft Timing Inspection
- Catalytic Converter Inspection
- Connecting Rod and Crankshaft End Play Inspection
- Cylinder Bore Honing
- Engine Compression Inspection
- Engine Oil Jet Inspection
- Idle Speed Inspection
- PCV Valve Inspection
- VTC Actuator Inspection
- Valve Clearance Adjustment
- Valve Inspection
- Valve Seat Reconditioning
- Valve Stem-to-Guide Clearance Inspection