🏷️ Basic Information

Make:

Mitsubishi

Model:

Lancer Evolution IV

Model Code:

CN9A

Chassis Code:

CN9A

Engine Code:

4G63T

Production Years Covered:

1996, 1997, 1998

👋 Introduction

Market Position:

The Mitsubishi Lancer Evolution IV (Evo 4) was a highly sought-after performance compact sedan, positioned as a rally-bred homologation special. It competed directly with other iconic performance cars of its era like the Subaru Impreza WRX STI and Ford Escort Cosworth. Its reputation for exceptional handling, powerful turbocharged engine, and advanced all-wheel-drive system made it a legend in the automotive world.

Competitive Analysis:

The Evo 4 stood out with its Active Yaw Control (AYC) system, which significantly enhanced cornering stability and agility, differentiating it from many competitors. Its robust 4G63T engine offered immense tuning potential, a key draw for enthusiasts.

Key Features:

Turbocharged 2.0L DOHC 16-valve engine, Mitsubishi's Super All-Wheel Control (S-AWC) including Active Yaw Control (AYC), twin-scroll turbocharger, intercooler, close-ratio 5-speed manual transmission, Brembo brakes (optional on some trims), aggressive aerodynamic body kit, Recaro sport seats.

📋 Manual Details

Manual Type:

Workshop Service Repair Manual

Language:

English

Format:

PDF

Delivery Method:

Instant Download

Page Count:

665

📖 Manual Coverage

Engine:

Complete engine overhaul, assembly, disassembly, lubrication system, cooling system, fuel system, ignition system, emissions control, engine management system (ECU), turbocharger system, performance tuning.

Transmission:

Manual transmission (5-speed), clutch system, drivetrain, transfer case, viscous coupling unit (VCU), rear differential, all-wheel drive system (4WD).

Suspension And Steering:

Front and rear suspension systems (MacPherson struts front, multi-link rear), shock absorbers, springs, control arms, anti-roll bars, power steering system, steering rack, wheel alignment specifications.

Brakes:

Front and rear disc brakes, ABS (Anti-lock Braking System), brake calipers, brake pads, brake rotors, brake lines, parking brake system, hydraulic system bleeding procedures.

Electrical System:

Battery, charging system (alternator), starting system (starter motor), ignition system, lighting system, instrument cluster, wiring diagrams, fuses, relays, power windows, mirrors, central locking.

Body And Chassis:

Body construction, exterior panels, interior trim, doors, hood, trunk, bumpers, chassis components, corrosion protection, structural integrity.

HVAC:

Heating, Ventilation, and Air Conditioning (HVAC) system, climate control, refrigerant, compressor, evaporator, condenser, cabin filter.

Fuel System:

Fuel tank, fuel pump, fuel injectors, fuel filter, fuel pressure regulator, electronic fuel injection (EFI) control.

Exhaust System:

Exhaust manifolds, catalytic converter, mufflers, exhaust pipes, O2 sensors.

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks and replacements, spark plug replacement, belt replacement, tire rotation, brake inspection.

Troubleshooting:

Diagnostic procedures for common and complex issues, fault codes interpretation, electrical system diagnostics, engine performance problems, drivetrain issues.

Repair:

Detailed step-by-step repair instructions for all major components, including engine rebuilds, transmission overhauls, brake system repairs, suspension component replacement, electrical component repair.

Diagnostics:

On-Board Diagnostics (OBD-II) information, specific diagnostic trouble codes (DTCs), sensor testing, actuator testing, ECU diagnostics.

Specifications:

Torque specifications for all fasteners, engine timing specifications, valve clearance specifications, fluid capacities and types, electrical component resistance values.

Engine Rebuild:

Detailed instructions for complete engine disassembly, inspection, machining, and reassembly, including piston and ring installation, bearing replacement, crankshaft and connecting rod assembly, cylinder head service.

Transmission Overhaul:

Comprehensive guide to dismantling, inspecting, and rebuilding the 5-speed manual gearbox, including gearset service, synchronizer replacement, and bearing maintenance.

Drivetrain Service:

Procedures for servicing the transfer case, front and rear differentials, and the Active Yaw Control (AYC) system, including fluid changes and component inspection.

Electrical Diagnostics:

Extensive wiring diagrams for all vehicle systems, diagnostic procedures for ECU, sensors, actuators, and various electrical components, troubleshooting for common electrical faults.

Bodywork Repair:

Instructions for body panel alignment, repair of minor collision damage, interior trim removal and installation, door and window mechanism service.

Wheel Alignment And Suspension:

Detailed specifications and procedures for wheel alignment (camber, caster, toe), suspension component replacement (struts, control arms, bushings), and steering system service.

HVAC System Service:

Procedures for air conditioning system servicing, including refrigerant handling, component replacement (compressor, evaporator), and troubleshooting.

Depth:

Comprehensive. Covers everything from basic maintenance and fluid changes to complete engine and transmission rebuilds, advanced electrical diagnostics, and structural repairs. Suitable for professional mechanics and advanced DIY enthusiasts.

📊 Manual Specifications

File Format:

PDF

Searchability:

Likely searchable text within the PDF for quick access to information.

Print Quality:

High resolution, suitable for printing individual pages or sections.

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Type:

Inline 4-cylinder, DOHC, 16-valve with Turbocharger and Intercooler

Engine Code:

4G63T

Displacement:

1997 cc (2.0 Liters)

Bore X Stroke:

85.0 mm x 88.0 mm

Compression Ratio:

8.5:1

Horsepower Ps:

280 PS @ 6500 rpm (JDM spec)

Horsepower Hp:

276 hp @ 6500 rpm (approx. JDM spec)

Torque Nm:

350 Nm @ 3000 rpm (JDM spec)

Torque Lb-Ft:

258 lb-ft @ 3000 rpm (approx. JDM spec)

Fuel Delivery:

Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded gasoline (premium recommended)

Turbocharger Details:

Mitsubishi TD05H-16G twin-scroll turbocharger with air-to-air intercooler.

🔧 Transmission

Transmission Type:

5-speed Manual

Optional Transmission:

N/A (Manual only for Evo IV)

Drivetrain:

All-Wheel Drive (AWD) with Active Yaw Control (AYC)

Ayc Functionality:

Electronically controlled torque distribution to rear wheels for enhanced cornering performance.

📐 Dimensions

Length:

4350 mm (171.3 in)

Width:

1770 mm (69.7 in)

Height:

1405 mm (55.3 in)

Wheelbase:

2600 mm (102.4 in)

Track Width Front:

1510 mm (59.4 in)

Track Width Rear:

1505 mm (59.3 in)

Curb Weight:

Approx. 1450 kg (3197 lbs)

Gross Weight Rating:

Not specified, typically above curb weight.

🛡️ Safety Features

Safety Ratings:

Specific crash test ratings for the 1996-1998 Evo IV are not as widely published as modern vehicles. However, it was built to rally homologation standards which imply robust construction. Japanese NCAP or equivalent would be relevant.

Active Features:

Anti-lock Braking System (ABS), Active Yaw Control (AYC), limited-slip differentials (front and rear).

Passive Features:

Three-point seat belts with pretensioners, front airbags (driver and passenger), reinforced safety cell, impact-absorbing steering column.

💡 Technology Features

Infotainment System:

Basic factory radio with cassette player and AM/FM tuner. CD player optional on some trims. Later models/aftermarket installations may feature more advanced systems.

Driver Assistance Features:

ABS, AYC (Active Yaw Control), LSD (Limited Slip Differential).

Connectivity Options:

Very limited by modern standards. Primarily focused on vehicle performance and mechanical systems rather than digital connectivity.

🔧 Maintenance

Oil Change Interval:

Typically every 5,000 - 7,500 km (3,000 - 5,000 miles) or 6 months, especially under spirited driving conditions. Consult manual for precise intervals based on usage.

Timing Belt Interval:

Typically every 96,000 km (60,000 miles) or 5-7 years. Crucial due to interference engine design.

Spark Plug Replacement:

Refer to manual, often around 40,000 - 60,000 km (25,000 - 37,500 miles).

Engine Oil Type:

API SG or higher, viscosity usually 10W-30 or 10W-40. High-performance synthetic oil recommended for turbo engines. Manual specifies specific grades.

Engine Oil Capacity:

Approx. 4.5 Liters (4.8 US Quarts) with filter change. Consult manual.

Coolant Type:

Ethylene glycol-based coolant, typically a 50/50 mix with distilled water. Consult manual for specific type (e.g., Mitsubishi Super Long Life Coolant).

Transmission Fluid Type:

Manual Transmission Fluid (MTF), API GL-4 or GL-5, specific viscosity grade (e.g., 75W-90). Consult manual for precise specifications.

Transfer Case Fluid Type:

Hypoid gear oil, API GL-5, SAE 75W-90 or 80W-90. Consult manual.

Rear Differential Fluid Type:

Hypoid gear oil, API GL-5, SAE 75W-90 or 80W-90. Consult manual.

Brake Fluid Type:

DOT 3 or DOT 4, preferably DOT 4 for higher performance. Consult manual.

Known Issues:

AYC pump failure (common with age), turbocharger wear (especially if maintenance neglected), rod knock (if oil starvation occurs), differential wear, rusting (particularly in certain climates), clutch wear.

📚 Vehicle History

Brand Heritage:

Mitsubishi has a strong heritage in motorsport, particularly in rallying. The Lancer Evolution series was born from this passion, designed to meet World Rally Championship (WRC) homologation requirements. This lineage directly influenced the Evo IV's engineering and performance focus.

Model Evolution:

The Evo IV, introduced in August 1996, represented a significant step forward from the Evo III. It featured a completely redesigned chassis, a more powerful engine, and the groundbreaking Active Yaw Control (AYC) system, which actively managed torque distribution to the rear wheels to improve cornering grip and responsiveness. It also received a distinctive new front fascia with larger headlights and fog lights, and a revised rear bumper and spoiler.

Production Period:

1996-1998

Major Variants:

GSR (more luxury-oriented with AYC), RS (lighter, more focused for motorsport, often without AYC and ABS).

Production Location:

Mizushima, Okayama, Japan

🏆 Awards & Recognition

Recognitions:

While the Evo IV itself may not have specific 'awards' listed in the same way as modern consumer cars, its predecessor (Evo III) and successor (Evo V onwards) were highly acclaimed and often featured in performance car roundups and motorsport publications. The Evo IV is celebrated for its technological advancements, particularly AYC, and its significant impact on the sport compact and rally-inspired performance car market.