If this occurred, the cam sprocket needed to be replaced.
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Furthermore, the electronically controlled throttle regulated idle speed, traction control, stability control and cruise control functions.
Through the use of oil pressure and spring force, the lash adjuster maintained a constant zero valve clearance.
The triple ground electrode type iridium-tipped spark plugs had 60,000 mile 96,000 km maintenance intervals.
According to Toyota, port and direct injection increased performance across the revolution range compared with a port-only injection engine, increasing power by up to 10 kW and torque by up to 20 Nm.