Toyota 2ZR-FAE Specifications
| Engine Model: Toyota 2ZR-FAE |
| Engine Type: 4-cycle inline 4-cylinder DOHC 16-valve VVT-i liquid-cooled gasoline |
| Total Displacement: 109.7 cu.in (1.79 L) |
| Rated Engine Power: 139-148 Hp (104-110 kW) at 6500 rpm |
| Fuel System Type: Multi-point fuel injection |
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The Toyota 2ZR-FAE is a 1.8-liter, naturally aspirated
inline-four engine from the ZR family, introduced in 2008 as an advanced
derivative of the 2ZR-FE. This engine represents Toyota's application of
Valvematic technology - a continuously variable intake valve lift system -
combined with Dual Variable Valve Timing with intelligence (Dual VVT-i).
The Valvematic system distinguishes the 2ZR-FAE from its counterparts by
controlling intake air volume through valve lift modulation rather than a
traditional throttle plate, substantially reducing pumping losses and improving
thermal efficiency. The engine retains the fundamental architecture of the ZR
family: an aluminum alloy cylinder block with cast-iron liners, a chain-driven
DOHC valvetrain, and a long-stroke configuration optimized for low-end torque.
With a power output ranging from 139 to 148 horsepower and a thermal efficiency
reaching 37 percent, the 2ZR-FAE was engineered to deliver superior fuel economy
and a broader torque curve compared to the standard 2ZR-FE. The engine was
widely deployed across Toyota’s compact and mid-size platforms, including the
Corolla, Auris, and Avensis, and served as a benchmark for naturally aspirated
four-cylinder efficiency in its generation.
The 2ZR-FAE is a transverse-mounted, inline-four engine utilizing a wet-sump
lubrication system. Its long-stroke architecture - with stroke exceeding bore by
nearly 8.0 mm - prioritizes mid-range torque production for urban driving and
compatibility with continuously variable transmissions. The Valvematic system on
the intake side operates in conjunction with Dual VVT-i, allowing the engine
control unit to manage load without a conventional throttle plate under most
operating conditions. All variants employ sequential multi-point fuel injection.
Engine Type: Inline-4, 4-stroke, water-cooled petrol.
Displacement: 1,798 cc / 109.7 cu.in.
Bore: 80.5 mm / 3.17 in.
Stroke: 88.3 mm / 3.48 in.
Compression Ratio: 10.5:1 (early variants); 10.6:1 (later variants).
Fuel System: Multi-Point Fuel Injection (MPFI), sequential.
Firing Order: 1-3-4-2.
Maximum Power: 139-148 hp / 104-110 kW at 6,400-6,600 rpm.
Maximum Torque: 126-129 lb-ft / 171-175 Nm at 4,000 rpm.
Thermal Efficiency: 37%.
Engine Oil Capacity (with filter): 4.2 L / 4.4 US qt.
Oil Grade: 0W-20 or 5W-20, API SN or ILSAC GF-5.
Coolant Capacity: 5.5 L / 5.8 US qt.
Valvetrain: DOHC, 4 valves per cylinder, 16 valves total. Dual VVT-i on intake
and exhaust camshafts; Valvematic continuously variable intake valve lift.
The cylinder block is constructed from aluminum alloy
using an open-deck design to reduce weight and improve cooling around the
cylinder bores. The block incorporates cast-iron cylinder liners that are
integrally cast during the manufacturing process, providing the wear resistance
necessary for long-term durability while maintaining the weight advantages of
aluminum construction. The block features a ladder-frame structure integrated
with the main bearing caps, forming a rigid lower crankcase that enhances
bottom-end stiffness and reduces noise, vibration, and harshness. Within the
block, a cast iron crankshaft is supported by five main bearings.
The crankshaft incorporates eight counterweights for optimal balance. Connecting
rods are forged powder metal with a fracture-split design on the big end. The
pistons are aluminum alloy castings with a low-friction skirt coating and
feature a recessed crown design to accommodate the high compression ratio. The
oil pump is a gear-type unit mounted within the timing cover and driven directly
by the crankshaft.
The cylinder head is a cross-flow aluminum alloy
casting housing the dual overhead camshafts and the Valvematic mechanism on the
intake side. The Valvematic system replaces the conventional intake camshaft
with a hollow shaft containing an internal control shaft. A set of eccentric
cams, actuated by an electric motor through a reduction gear and a control
shaft, varies the fulcrum point of the roller rocker arms.
This mechanism continuously alters intake valve lift from 1.0 mm at idle to 11.0
mm at full load, eliminating the need for a throttle plate under most operating
conditions. The exhaust camshaft is equipped with VVT-i for independent timing
control. The valvetrain utilizes roller rocker arms with integrated hydraulic
lash adjusters, which automatically maintain zero valve clearance and eliminate
the need for periodic valve adjustments. The combustion chambers are of the
compact pent-roof design with a narrow valve angle optimized for tumble
generation and flame propagation.
Valve Configuration: DOHC, 16 valves
Intake Valve Diameter: 31.5 mm / 1.24 in
Exhaust Valve Diameter: 27.5 mm / 1.08 in
Valvematic Lift Range: Continuously variable from 1.0 mm to 11.0 mm intake valve
lift. Dual VVT-i Range: Intake: 40-50 degrees of camshaft adjustment; Exhaust:
35-45 degrees of camshaft adjustment. Camshaft Drive: Single-row timing chain
with hydraulic tensioner; maintenance-free for the engine’s service life.
The 2ZR-FAE employs a sequential multi-point fuel
injection system with injectors positioned in the intake ports. Fuel is
delivered by an electric in-tank pump operating at a regulated pressure of 3.5
bar / 51 psi to a fuel rail mounted on the intake manifold. The injectors are
high-impedance, 12-hole type designed for fine fuel atomization to support the
high tumble combustion system.
The intake manifold is a two-piece composite plastic construction incorporating
the Acoustic Control Induction System (ACIS), which uses a butterfly valve to
change the effective intake runner length based on engine speed and load,
optimizing torque characteristics across the operating range. The system
utilizes a returnless fuel delivery configuration where the pressure regulator
is integrated into the fuel pump assembly, reducing fuel heating in the engine
bay.
Lubrication is provided by a gear-type oil pump located
within the timing cover and driven directly by the crankshaft. The pump is of
the variable-displacement design on later variants, adjusting oil pressure based
on engine operating conditions to reduce parasitic losses. The system
incorporates a full-flow spin-on oil filter and, on select applications, an oil
cooler integrated into the filter housing.
The lubrication circuit supplies pressurized oil to the crankshaft main
bearings, connecting rod bearings, camshaft journals, Valvematic control
mechanism, Dual VVT-i actuators, hydraulic lash adjusters, and the timing chain
tensioner. The oil pan is a stamped steel unit with internal baffling to
maintain oil pickup during cornering.
The cooling system is a forced circulation, pressurized
design engineered to maintain consistent operating temperatures across varying
load conditions. A belt-driven water pump with a stamped steel impeller
circulates coolant through the cylinder block, cylinder head, and the heater
core. The system utilizes a cross-flow aluminum radiator with plastic end tanks
and an electric cooling fan controlled by the engine control unit via a coolant
temperature sensor.
A wax-type thermostat, rated at 82°C / 180°F, regulates coolant flow to the
radiator. The system is designed for Toyota Super Long Life Coolant (SLLC), an
ethylene-glycol based coolant with extended service intervals. A separate
coolant circuit supplies the heater core and, on automatic transmission
applications, the transmission oil warmer.
The intake system incorporates a large-volume air
cleaner housing with a paper element and a mass air flow (MAF) sensor. The
Valvematic system controls intake airflow through valve lift modulation, with
the electronic throttle body serving primarily as a backup control device and
for idle stability. The ACIS system within the intake manifold switches between
long and short runner paths to optimize volumetric efficiency.
Ignition System: The ignition system is a
distributorless, coil-on-plug design with individual ignition coils mounted
directly over each spark plug. The engine control unit manages ignition timing
based on inputs from the crankshaft position sensor, camshaft position sensors,
knock sensor, and air-fuel ratio feedback.
Timing System: The camshafts are driven by a single-row roller chain with a
hydraulic tensioner. The timing chain system is designed for the life of the
engine and does not have a scheduled replacement interval. The water pump is
driven by the accessory belt, not by the timing chain.
Valvematic Control System: The Valvematic actuator is an electric motor mounted
on the intake side of the cylinder head. The engine control unit commands the
motor to rotate a control shaft within the hollow intake camshaft, changing the
relative position of eccentric cams that act on the roller rocker arms. This
mechanism continuously varies valve lift without the use of a throttle plate,
reducing pumping losses by up to 10 percent under part-load conditions.
Dual VVT-i System: Both intake and exhaust camshafts are equipped with vane-type
phasers actuated by oil pressure. The engine control unit modulates oil flow
through solenoid valves to advance or retard cam timing independently,
optimizing valve overlap for fuel efficiency, emissions control, and power
output.
Emissions Control: The engine employs a three-way catalytic converter with
closed-loop lambda feedback. A heated oxygen sensor upstream of the catalyst
provides air-fuel ratio data to the engine control unit. A secondary oxygen
sensor downstream monitors catalyst performance. Positive Crankcase Ventilation
(PCV) and Evaporative Emission Control (EVAP) systems are incorporated.
Overall Length: 24.8 in / 630 mm
Overall Width: 22.0 in / 560 mm
Overall Height: 26.4 in / 670 mm
Engine Weight (dry, without ancillaries): 220 lb / 100 kg
Engine Weight (fully dressed with intake, exhaust, and alternator): 286 lb / 130
kg
Engine Oil and Filter: Replace every 5,000-10,000 miles
/ 8,000-16,000 km or 12 months, depending on driving conditions. Use 0W-20 or
5W-20 fully synthetic oil meeting API SN or ILSAC GF-5 standards. Timing Chain:
No specified replacement interval. Inspect for noise or slack if engine exhibits
timing correlation diagnostic trouble codes. Spark Plugs: Replacement interval
is 60,000-120,000 miles / 100,000-190,000 km depending on market and operating
conditions. Use Denso SC20HR11 or NGK DILKAR7G11GS iridium spark plugs.
Coolant: Replace at 100,000 miles / 160,000 km or 10 years, then every 50,000
miles / 80,000 km or 5 years thereafter. Use Toyota Super Long Life Coolant
(SLLC) or equivalent phosphate-free ethylene glycol coolant. Drive Belt
(Accessory Serpentine): Inspect at each oil change; replace every 60,000 miles /
100,000 km or if cracking, glazing, or fraying is evident.
Air Cleaner Element: Replace every 30,000 miles / 48,000 km; more frequent
replacement in dusty environments. Fuel Injector Cleaning: No specified
interval; fuel system cleaners may be used if injector deposits are suspected.
Valve Clearance: Not required due to hydraulic lash adjusters. Valvematic
System: No routine maintenance required. System diagnosis requires specialized
scan tool access to monitor valve lift angle and control motor operation.
Cylinder Head Bolts (M10 x 1.25): 29 lb-ft / 40 Nm.
Crankshaft Pulley Bolt: 181 lb-ft / 245 Nm.
Camshaft Sprocket Bolts: 59 lb-ft / 80 Nm.
Camshaft Bearing Cap Bolts, Step 1: 8 lb-ft / 11 Nm.
Camshaft Bearing Cap Bolts, Step 2: 18 lb-ft / 25 Nm.
Connecting Rod Bearing Cap Bolts (M7 x 1.0): 15 lb-ft / 20 Nm.
Main Bearing Cap Bolts (M10 x 1.25): 29 lb-ft / 40 Nm.
Cylinder Head Cover Bolts (M6 x 1.0): 7-9 lb-ft / 10-12 Nm.
Intake Manifold Bolts: 18 lb-ft / 25 Nm.
Exhaust Manifold Nuts: 22 lb-ft / 30 Nm.
Spark Plugs: 18 lb-ft / 25 Nm.
Oil Filter (Spin-on): 18 lb-ft / 25 Nm.
Oil Pan Bolts (M6 x 1.0): 7-9 lb-ft / 10-12 Nm.
Timing Chain Tensioner Bolt: 18 lb-ft / 25 Nm.
Water Pump Bolts (M6 x 1.0): 7-9 lb-ft / 10-12 Nm.
Valvematic Control Motor Bolts: 7-9 lb-ft / 10-12 Nm.
Flywheel / Drive Plate Bolts: 36 lb-ft / 49 Nm.
The 2ZR-FAE engine was deployed across Toyota’s compact
and mid-size vehicle ranges, with Valvematic technology providing enhanced fuel
economy and drivability characteristics.
Toyota Corolla (ZRE152, ZRE182): 2008-2018 (select markets, particularly Europe,
Asia, and Australia).
Toyota Corolla (MZEH12): 2013-2018 (hybrid variant using 2ZR-FAE architecture in
conjunction with electric motor).
Toyota Auris / Corolla iM (ZRE152, ZRE182): 2008-2018 (European and Asian
markets).
Toyota Avensis (ZRT271): 2008-2018 (European market, 1.8-liter Valvematic
variant).
Toyota Wish (ZGE20, ZGE21): 2009-2017 (Japanese and Asian markets).
Toyota Prius V (ZVW40): 2011-2017 (select markets, utilizing the 2ZR-FAE as the
gasoline engine in hybrid system).
Lotus Elise (S3): 2010-2021 (1.6-liter and 1.8-liter variants derived from the
ZR family, including Valvematic-equipped versions in certain specifications).
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