Engine & fuel system
2 documented faults — symptoms, causes and workshop fixes.
Poor idle
Symptoms
Engine stalls. Trouble codes stored in engine control module (ECM) fault memory: P0016, P0017.
Cause
Repair
- Check operation of camshaft position (CMP) actuators. Replace component(s) as necessary.
Data: Motorwise Workshop. Bulletin 1.
Squeaking noise from high-pressure fuel pump area when engine idling
Cause
Unsatisfactory design of high-pressure fuel pump.
Repair
- Fit modified high-pressure fuel pump.
Parts4 parts
| Part | Part number | Qty |
|---|---|---|
| High-pressure fuel pump | SU003-00328 | 1 |
| Fuel pipe | SU003-00342 | 1 |
| Gasket | SU003-00347 | 1 |
| O-ring | SU003-02187 | 1 |
Data: Motorwise Workshop. Bulletin 2.
Brakes
1 documented fault — symptoms, causes and workshop fixes.
Squeal from front brakes when braking lightly
Cause
Incorrect brake pad material characteristics.
Repair
- Fit modified brake pads.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Front brake pad kit | SU003-04678 | 1 |
Data: Motorwise Workshop. Bulletin 3.
Glossary
Technical terms used in this guide.
- ECM
- Engine control module — the electronic unit that manages the engine
- Trouble Codes
- Standardised fault codes stored by the engine control module, read with a diagnostic tool
- CMP
- Camshaft position — a sensor that tells the engine control module where the camshaft is
- Actuator
- A motor or solenoid that moves a mechanical part on command
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- Fault Memory
- The list of stored trouble codes in a control module
Frequently asked questions
What are the common faults with the Toyota GT-86 2.0 D-4S?
This guide contains three workshop bulletins for the Toyota GT-86 2.0 D-4S. Of these, two concern the engine and fuel system and one the brakes. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Toyota GT-86 2.0 D-4S 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 Toyota GT-86 2.0 D-4S faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.