Engine Toyota 1ZZ under the hood

Engine Toyota 1ZZ

The first Toyota 1ZZ engines began to be produced in 1998. They were made until December 2007. 1ZZ used a multipoint injection system. The gas distribution path provided high fuel efficiency at low revs. A big plus is the excellent thrust of the 1ZZ engine at high revs. Design features include forged connecting rods, an all-die-cast crankshaft and a plastic intake manifold.


Manufacturer Tianjin FAW Toyota Engines Plant No. 1
Toyota Motor Manufacturing West Virginia
Shimoyama Plant
Also called Toyota 1ZZ
Production years 1998-2007
Cylinder block alloy aluminum
Fuel system injector
Configuration inline
Number of cylinders 4
Valves per cylinder 4
Piston stroke, mm 91.5
Cylinder bore, mm 79
Compression ratio 10
Displacement, cc 1794
Power output, hp 120/5600
Torque output, Nm / rpm 165/4400
Fuel type 92
Euro standards Euro 4
Weight, kg 135
Fuel consumption, L/100 km
— city
— highway
— combined
Oil consumption, gr/1000 km up to 1000
Recommended engine oil 5W-30 / 10W-30
Engine oil capacity, liter 3.8
Oil change interval, km 10000
(better 5000)
Normal engine operating temperature, °C ~95
Engine lifespan, km
— official information
— real


Frequent problems

    Engine Toyota 1ZZ

  1. The motor is eating a lot of oil. The reason – the broken oil scraper rings (especially the release before 2002). Decarbonization, as a rule, does not solve the problem.
  2. Knock inside the unit. The timing chain has been loosened, which is important after passing more than 150 thousand kilometers. The belt tensioner may also be defective. The valves practically do not knock.
  3. Turnovers floated. Flush the throttle-gate and valve compartment at idle speed.
  4. Vibrations. Perhaps the rear cushion is to blame, or this is the specificity of the 1ZZ motor.

In addition, the unit reacts poorly to overheating. As a result, the structure of the cylinder block deteriorates, which requires its complete replacement (liner and grinding are not officially carried out). Engine versions released after 2005, especially with less than 200 thousand km mileage, have very good performance characteristics. On the basis of 1ZZ were released series – sports 2ZZ-GE, as well as 1.4- and 1.6-liter 4ZZ-FE and 3ZZ-FE, respectively. 2ZR-FE is a newer, more advanced model of the unit, released after 2007.

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