Engine & fuel system
11 documented faults — symptoms, causes and workshop fixes.
Engine malfunction indicator lamp (MIL) illuminated
Symptoms
Loss of engine power. Trouble code stored: P1401.
Cause
Engine control module (ECM) software fault.
Repair
- Re-program ECM with upgraded software.
Data: Motorwise Workshop. Bulletin 2.
Excessive Diesel knock on light throttle at 1500-2000rpm
Overview
- Affects
- All models with Diesel engines.
- Remedy
- Software update
Cause
Engine control module (ECM) software fault.
Incorrect injector calibration code in engine control module (ECM).
Repair
- Carry out injector calibration code programming in engine control module (ECM).
- Re-program ECM with upgraded software.
Data: Motorwise Workshop. Bulletin 3.
Fuel filler flap will not open or fully close
Cause
Fuel filler flap spring plunger seized due to internal damage/corrosion.
Repair
- Fit modified fuel filler flap spring plunger.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Fuel filler flap spring plunger | 74486-TFO-013 | 1 |
Data: Motorwise Workshop. Bulletin 5.
Engine malfunction indicator lamp (MIL) illuminated
Overview
- Affects
- All models with 2.2 Diesel engine, →2010.
- Remedy
- Software update
Symptoms
Engine runs in limp home mode. Trouble code stored in engine control module (ECM) fault memory: P00AF.
Cause
Engine control module (ECM) software fault.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program ECM with upgraded software.
Data: Motorwise Workshop. Bulletin 6.
Engine malfunction indicator lamp (MIL) illuminated
Overview
- Affects
- All models with N22B1/N22B2 engine codes.
- Remedy
- Software update
Symptoms
Trouble code stored: P061B.
Cause
Engine control module (ECM) software fault.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program engine control module (ECM) with upgraded software.
Data: Motorwise Workshop. Bulletin 7.
Cruise control disengages by itself
Overview
- Affects
- All models with N22B1/N22B2 engine codes and cruise control.
- Remedy
- Software update
Cause
Engine control module (ECM) software fault.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program engine control module (ECM) with upgraded software.
Data: Motorwise Workshop. Bulletin 8.
Erratic engine running during DPF regeneration
Overview
- Affects
- All models with Diesel particulate filter (DPF) and engine code N22B1.
- Remedy
- Software update
Cause
Engine control module (ECM) software fault.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program engine control module (ECM) with upgraded software.
Data: Motorwise Workshop. Bulletin 9.
Diesel particulate filter (DPF) warning lamp illuminates prematurely
Overview
- Affects
- All models with Diesel particulate filter (DPF) and engine code N22B1: VIN →JHMCU3***AC200910. VIN →JHMCW3***AC200685.
- Remedy
- Software update
Cause
Engine control module (ECM) software fault.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Carry out DPF regeneration using suitable diagnostic equipment. Re-program engine control module (ECM) with upgraded software.
Data: Motorwise Workshop. Bulletin 10.
Engine malfunction indicator lamp (MIL) illuminated. Trouble code stored: P0087
Overview
- Affects
- All models with Diesel engines.
- Fault codes
P0087- Remedy
- Software update
Symptoms
Engine runs in limp home mode.
Cause
Engine control module (ECM) software fault.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program engine control module (ECM) with upgraded software.
Data: Motorwise Workshop. Bulletin 12.
Poor cold starting
Overview
- Affects
- All models with 2.2 Diesel engine: 4-door models: VIN →JHMCU3***DC200508. 5-door models: VIN →JHMCW3***DC200427.
- Remedy
- Software update
Symptoms
Engine runs erratically after cold start.
Cause
Engine control module (ECM) software fault.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program engine control module (ECM) with upgraded software.
Data: Motorwise Workshop. Bulletin 13.
Possible trouble codes stored
Engine control module (ECM) software fault. Fix: re-program with updated software.
Overview
- Affects
- All models with Diesel particulate filter (DPF) and engine codes N22B1/N22B2, →2012.
- Remedy
- Software update
Symptoms
Diesel particulate filter (DPF) warning lamp illuminated.
Repair steps
- Access ECM fault memory and erase trouble codes.
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program engine control module (ECM) with upgraded software.
- Carry out DPF regeneration using suitable diagnostic equipment.
Data: Motorwise Workshop. Bulletin 14.
Brakes
1 documented fault — symptoms, causes and workshop fixes.
Front brake judder
Overview
- Affects
- All models, 2005-08.
Cause
Excessive front brake disc runout.
Repair
- Check front brake disc runout is less than 0.04 mm. Reface or replace front brake discs as necessary.
- Check front brake disc thickness variation is less than 0.015 mm. Reface or replace front brake discs as necessary.
Data: Motorwise Workshop. Bulletin 1.
Suspension & drivetrain
1 documented fault — symptoms, causes and workshop fixes.
Cruise control distance range/lane departure warning system lamp illuminated
Overview
- Affects
- All models.
- Remedy
- Fit new part
Symptoms
Digital multifunction display shows 'ACC Err'. Trouble codes stored: 28, 70.
Cause
Non standard suspension configuration.
Incorrect tyre pressures or mismatched tyres, resulting in incorrect vehicle speed data.
Poor connection between lane departure warning system control module and harness multi-plug.
Lane departure warning system control module faulty.
Repair steps
- Erase trouble codes.
- Ensure manufacturer standard suspension fitted.
- Check suspension components for damage.
- Check tyre condition and tyre pressures.
- Ensure front and rear wheel alignment check/adjustment carried out.
- Carry out steering angle sensor calibration using diagnostic equipment.
- Test drive vehicle at a minimum speed of 40 mph (65 kph) for 2 minutes.
- If cruise control distance range/lane departure warning system lamp illuminated and trouble code 28 stored: Check electrical connection between lane departure warning system control module and harness multi-plug. If no fault found, fit new lane departure warning system control module.
Data: Motorwise Workshop. Bulletin 4.
Clutch & gearbox
1 documented fault — symptoms, causes and workshop fixes.
Noise/vibration from transmission when clutch pedal is slightly depressed
Cause
Hydraulic clutch pipe transmits noise into vehicle.
Repair
- Fit vibration damper to clutch hydraulic pipe.
Parts11 parts
| Part | Part number | Qty |
|---|---|---|
| Hydraulic clutch pipe | 46960-TLO-E05 | 1 |
| Clip | 46394-S04-003 | 1 |
| Foam pad | 46472-568-000 | 1 |
| Hydraulic clutch hose | 46961-TLO-E11 | 1 |
| Bolt | 46963-SD4-020 | 1 |
| Vibration damper | 46985-TL0-E01 | 1 |
| Bracket | 46995-TL0-E01 | 1 |
| Bolt | 90649-SB0-671 | 1 |
| Bolt | 95701-06012-08 | 2 |
| Hydraulic pipe mounting clip | 46997-S04-A01 | 2 |
| Hydraulic hose mounting clip | 46391-STK-A01 | 2 |
Data: Motorwise Workshop. Bulletin 11.
Glossary
Technical terms used in this guide.
- ECM
- Engine control module — the electronic unit that manages the engine
- VIN
- Vehicle identification number — 17 characters, found at the base of the windscreen and on the V5C logbook
- DPF
- Diesel particulate filter — traps soot in the exhaust and burns it off periodically
- Trouble Codes
- Standardised fault codes stored by the engine control module, read with a diagnostic tool
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- Disc Runout
- How much a brake disc wobbles; too much causes vibration or squeal
- DPF Regeneration
- The process that burns soot out of the diesel particulate filter, usually on a longer run
- Fault Memory
- The list of stored trouble codes in a control module
- Limp Home
- A protective mode that limits power so the vehicle can be driven to a workshop
- Multi-Plug
- A multi-pin electrical connector on a wiring harness
- Re-Program
- Update the software on a control module using the manufacturer's diagnostic tool
- Steering Angle Sensor
- Tells the stability-control system which way the steering wheel is pointing
- Trouble Code
- A standardised fault code stored by a control module, read with a diagnostic tool
- Calibration
- Setting a sensor or module so its readings match the real world
Frequently asked questions
What are the common faults with the Honda Accord 2.2 i-DTEC?
This guide contains 14 workshop bulletins for the Honda Accord 2.2 i-DTEC. Of these, 11 concern the engine and fuel system and one the brakes. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Honda Accord 2.2 i-DTEC have these faults?
No. These are patterns documented across the model by workshops, not predictions for an individual vehicle. Where a fault applies only to certain vehicles or VIN ranges, that is listed with the fault.
Can I check for Honda Accord 2.2 i-DTEC faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.