The 2ZR engine began production in 2007 to replace the popularly disliked 1ZZ engine and took an intermediate position in the ZR series, between junior 1ZR and older 3ZR. The Toyota 2ZR engine differs from the younger one by the increased crankshaft stroke (from 78.5 mm to 88.3 mm), in the 3ZR, respectively, the crankshaft with a large stroke. In addition, the 2ZR has modifications based on the Atkinson cycle.
Specifications
| Manufacturer | Toyota Motor Manufacturing West Virginia Shimoyama Plant |
| Also called | Toyota 2ZR |
| Production years | 2007 |
| Cylinder block alloy | aluminum |
| Fuel system | injector |
| Configuration | inline |
| Number of cylinders | 4 |
| Valves per cylinder | 4 |
| Piston stroke, mm | 88.3 |
| Cylinder bore, mm | 80.5 |
| Compression ratio | 10 10.5 13 |
| Displacement, cc | 1797 |
| Power output, hp | 128/6000 132/6000 136/5200 136/6000 140/6000 144/6400 147/6400 |
| Torque output, Nm / rpm | 171/4400 207/4000 172/4400 175/4400 174/4400 176/4400 180/4000 |
| Fuel type | 95 |
| Euro standards | Euro 5 |
| Weight, kg | 97 (dry) |
| Fuel consumption, L/100 km (for Corolla E170) — city — highway — combined |
8.3 5.3 6.4 |
| Oil consumption, gr/1000 km | up to 1000 |
| Recommended engine oil | 0W-20 / 5W-20 / 5W-30 / 10W-30 |
| Engine oil capacity, liter | 4.2 |
| Oil change interval, km | 10000 (better 5000) |
| Normal engine operating temperature, °C | — |
| Engine lifespan, km — official information — real |
– ~250 |
Frequent problems
- Excessive consumption of engine oil. This disadvantage is typical for the first releases of the unit. It can be eliminated if W30 analogues are used instead of oils with viscosity W0 – W5 recommended by the manufacturer. Compression can be checked for high mileage.
- The motor began to knock. At medium speed, you need to change the timing chain tensioner, otherwise the drive alternator belt is to blame.
- Negative manifestations at idle speed. Instability of revolutions and other problems often arise due to dirt in the throttle-valve module, as well as a malfunction of its sensor.
The pump also produces troubles after every 50-60 thousand kilometers traveled. It needs to be changed. The thermostat may break down, causing the motor to stop heating to operating temperature. Often the VVTi valve overwhelms – the motor loses power and creeps. Despite all this, the Toyota 2ZR engine turned out to be relatively good. With constant maintenance, it can normally travel more than 250 thousand km.
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