Knocking/pinging under load
- Symptoms
- Ping on throttle in high gear
- Likely cause
- Low-octane fuel, carbon, knock sensor
- Fix
- Use the correct RON (91 NZ/1ZZ, 95 3ZZ per toyota-club); decarbonise; check the sensor
- Applies to
- All petrol
- Related fault codes
- P0325
- Confidence
- low
Sources
- toyota-club.net/files/faq/03-08-16_engine_eng.htm
- pakwheels.com/forums/t/toyota-corolla-model-e-120-2002-2008-owners-and
- toyotamanuals.gitlab.io/RM01J1E/htmlweb/rm01j1e/rm/rm821e/m_05_0063.pd
Related problems on this car
- Idle hunting / stalling when the clutch is pressed (IACV/throttle body)
- ZZ oil consumption (1ZZ-FE/3ZZ-FE, worse on early builds)
- Ignition coil-on-plug failure / misfire
- Intake manifold gasket vacuum leak (1ZZ)
Similar problems on other cars
- 1.5 Turbo knocking and the 2017 production stop · Honda Civic (10th gen, FC)
- Stalling at idle with A/C + brake, hard start · Toyota Passo (1st gen)
Where the parts are · Warning lights · Fault codes · Maintenance
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