Toyota1990–1994Technical specifications

MR2 2.0: Technical specifications

Workshop data for the 2-litre petrol (engine code 3S-GE). Covers engine, fluids, brakes, service, torques and air conditioning: the figures to check before a job or a parts order.

Summary

Match the engine code (3S-GE) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Toyota
Model: MR2
Years: 1990–1994
Fuel: Petrol
Engine code: 3S-GE

Performance & efficiency

Power: 116 kW (158 hp)
Engine size: 1,998 cc
Cylinders: 4 · DOHC
Compression ratio: 10.0:1
Fuel system: Toyota

Fluids & capacities

Engine oil (with the filter): 3.9 litres

All 122 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/DOHC
Capacity (Fiscal) cc	1998 (1984)
Compression ratio :1	10,0
Suitable for unleaded petrol	Yes
Minimum octane rating RON	95
Ignition system Type	ESA
Ignition system Description	Map-i
Trigger location	Distributor
Fuel system Make	Toyota
Fuel system Type	TCCS
Fuel system Description	MFI-i
Air metering Type	MAP
Combined ignition and fuel ECM	Yes
Diagnostic socket	Yes

Ignition system

Ignition coil Make	Denso
Ignition coil supply voltage + with ballast V	11,0
Primary resistance Ohm	0,4-0,5
Secondary resistance Ohm	10000-14000
Distributor (ECM) Make	Denso
Contact breaker gap/trigger air gap mm	0,2-0,4

Firing order

The firing order for the Toyota MR2 2.0 (1990–1994) is 1-3-4-2.

Firing order	1-3-4-2

Valve clearances

Valve clearances for the Toyota MR2 2.0 (1990–1994) are 0,15-0,25 mm inlet and 0,20-0,30 mm exhaust, measured cold.

Valve clearance - INLET mm	0,15-0,25 cold
Valve clearance - EXHAUST mm	0,20-0,30 cold

Engine oil & fluids

Engine oil

The Toyota MR2 2.0 (1990–1994) takes 3.9 litres of engine oil with the filter.

A listed engine oil option is SAE 5W-30 for cold climates, with API/ACEA classification SJ/A1.

A listed engine oil option is SAE 10W-30 for moderate climates, with API/ACEA classification SJ/A1.

A listed engine oil option is SAE 10W-40 as an alternative for moderate climates, with API/ACEA classification SJ/A1.

A listed engine oil option is SAE 10W-40 for hot climates, with API/ACEA classification SJ/A1.

Manual gearbox

The manual gearbox has a listed capacity of 2.6 litres. The specified oil is Dexron II.

Coolant

The listed total cooling-system capacity is 13.6 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	Cold climate
Engine oil grade SAE	5W-30
Engine oil classification API/ACEA	SJ/A1
Ambient temperature range	Moderate climate
Engine oil grade SAE	10W-30
Engine oil classification API/ACEA	SJ/A1
Ambient temperature range	Moderate climate alternative
Engine oil grade SAE	10W-40
Engine oil classification API/ACEA	SJ/A1
Ambient temperature range	Hot climate
Engine oil grade SAE	10W-40
Engine oil classification API/ACEA	SJ/A1
Engine with filter(s) litres	3.9
Other lubricants and capacities
Manual transmission oil grade SAE	Dexron II
Manual transmission litres	2.6
Cooling system - total capacity litres	13.6
Brake fluid Type	DOT 3
Power steering fluid Type	Dexron II
Power steering fluid litres	0.6

Brakes & wear limits

Brake disc thickness

Brake discs on the Toyota MR2 2.0 (1990–1994) are replaced at a minimum thickness of 24 mm (ventilated) front and 15 mm rear.

Minimum disc thickness for replacement - ventilated Front	24 mm
Minimum disc thickness for replacement Rear	15 mm

Brake disc and drum dimensions

Disc runout Front	0,07 mm
Disc runout Rear	0,10 mm
Minimum pad thickness Front	1 mm
Minimum pad thickness Rear	1 mm
Parking brake travel No. of notches	5-8

Service & electrical

Ignition timing

Basic ignition timing for the Toyota MR2 2.0 (1990–1994) is 10° BTDC at 650 rpm.

CO level - non-Cat
Ignition timing - basic BTDC °Engine/rpm	10/650

Battery

The Toyota MR2 2.0 (1990–1994) uses a 12 V, 60 Ah battery (reserve capacity 90 minutes).

Battery V/RC(Ah)	12/90 (60)

Spark plugs

The Toyota MR2 2.0 (1990–1994) uses NGK BKR6EYA spark plugs with a 0,8 mm electrode gap.

Spark plugs Original equipment	NGK
Spark plug Type	BKR6EYA
Electrode gap mm	0,8
Spark plugs Make	Bosch
Spark plug Type	FR7DC
Electrode gap mm	0,8
Spark plugs Make	Champion
Spark plug Type	RC9YCC4
Electrode gap mm	1,1
Spark plugs Make	NGK
Spark plug Type	BKR6EYA
Electrode gap mm	0,8

Tuning and emissions

CO level - non-Cat
Tuning conditions	—
View more information	—
Ignition advance checks °Engine/rpm	ECM Controlled
Idle speed rpm	800±50
Oil temperature °C	80
CO level at idle speed - tailpipe Vol. % CO	1,0±0,5
HC level at idle speed ppm	300
HC level at idle - alternative ppm	Kat=100
CO2 level at idle speed Vol. % CO2	13-16
O2 level at idle speed Vol. % O2	0,5-2,0

Starting and charging

Starter motor Make	Denso
Starter motor Type	1,4 kW
Maximum cranking amps A	162-198
Alternator Make	Nippon Denso
Alternator Type	70A
Alternator output A/V/rpm	30/14/2000
Regulated voltage V	13,9-15,1

Service checks and adjustments

Compression pressure bar	10,8-13,2
Oil pressure bar/rpm	2,5-4,9/3000
Radiator cap bar	0,74-1,03
Thermostat opens °C	80-84
Drive belt tension - alternator/PAS/AC mm	10-15

Fuel system

System pressure bar	2,7-3,1
Regulated pressure with vacuum bar	2,1-2,6
Engine coolant temperature (ECT) sensor Ohm/°C	200-400/80
Crankshaft position (CKP) sensor/engine speed (RPM) sensor Ohm	140-220
Injector Ohm	13,8
Idle air control (IAC) valve/idle speed control (ISC) actuator Ohm	19,3-22,3

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Toyota MR2 2.0 (1990–1994) are tightened in 3 stages: 25 Nm, then 49 Nm, then a final 90°.

Cylinder head
Renew bolts	No
Tighten	25 Nm
Tighten	49 Nm
Tighten	90°

Other engine tightening torques
Cylinder head instructions	—
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	30 Nm
Main bearings Stage 2	59 Nm
Big end bearings Renew bolts/nuts	No
Big end bearings Stage 1	33 Nm
Big end bearings Stage 2	67 Nm
Oil pump to cylinder block	9 Nm
Sump bolts	6 Nm
Sump drain bolt	37 Nm
Flywheel/driveplate	108 Nm/83 Nm
Clutch pressure plate	19 Nm
Crankshaft pulley/damper centre bolt	108 Nm
Camshaft sprocket/gear	59 Nm
Camshaft carrier/cap	19 Nm
Camshaft/rocker cover	2,5 Nm
Inlet manifold to cylinder head	21 Nm
Exhaust manifold to cylinder head	50 Nm
Spark plugs	18 Nm
Chassis tightening torques
Front hub	123 Nm
Rear hub	206 Nm
Steering track rod end	49 Nm
Brake caliper to carrier Front	34 Nm
Brake caliper/carrier to hub Front	88 Nm
Brake caliper to carrier Rear	20 Nm
Brake caliper/carrier to hub Rear	59 Nm
Road wheels	103 Nm

Air conditioning

Refrigerant type
Air conditioning refrigerant Type	R12
Air conditioning refrigerant quantity grams	850±50
Air conditioning oil Type	Dens Oil 6

Frequently asked questions

What is the firing order of the Toyota MR2 2.0?

The firing order for the Toyota MR2 2.0 (1990–1994) is 1-3-4-2.

What spark plugs does the Toyota MR2 2.0 use?

The Toyota MR2 2.0 (1990–1994) uses NGK BKR6EYA spark plugs with a 0,8 mm electrode gap.

How much oil does the Toyota MR2 2.0 take?

The Toyota MR2 2.0 (1990–1994) takes 3.9 litres of engine oil with the filter. A listed engine oil option is SAE 5W-30 for cold climates, with API/ACEA classification SJ/A1. A listed engine oil option is SAE 10W-30 for moderate climates, with API/ACEA classification SJ/A1. A listed engine oil option is SAE 10W-40 as an alternative for moderate climates, with API/ACEA classification SJ/A1. A listed engine oil option is SAE 10W-40 for hot climates, with API/ACEA classification SJ/A1.

What are the valve clearances for the Toyota MR2 2.0?

Valve clearances for the Toyota MR2 2.0 (1990–1994) are 0,15-0,25 mm inlet and 0,20-0,30 mm exhaust, measured cold.

What is the cylinder head torque for the Toyota MR2 2.0?

The cylinder head bolts on the Toyota MR2 2.0 (1990–1994) are tightened in 3 stages: 25 Nm, then 49 Nm, then a final 90°.

What is the ignition timing for the Toyota MR2 2.0?

Basic ignition timing for the Toyota MR2 2.0 (1990–1994) is 10° BTDC at 650 rpm.