Engine Code

NISSAN E16S engine (1985–1990) – Specs, Problems & Compatibility Database

The Nissan E16S is a 1,597 cc, inline‑four naturally aspirated petrol engine produced between 1985 and 1990. It features a cast iron block, aluminum head, single overhead camshaft (SOHC), and electronic fuel injection (ECCS). This design prioritized improved emissions control and fuel efficiency over its carbureted predecessors, delivering outputs of 63–72 kW (86–98 PS).

Fitted to models such as the Nissan Sunny (B12) and Pulsar (N13), the E16S was engineered for dependable urban commuting and economical highway cruising. Emissions compliance for its era was managed through the ECCS system and basic catalytic converter, meeting pre‑Euro standards.

One documented concern is failure of the ECCS (Electronic Concentrated Control System) ignition module, highlighted in Nissan Service Bulletin ESM‑E16S‑002. This issue, often linked to heat stress or moisture ingress, can cause intermittent misfires, stalling, or complete no‑start conditions.

BMW N47D20A Engine
Compliance Note:

Production years 1985–1990 meet applicable emissions standards for their respective model years and markets (VCA UK Type Approval data for relevant chassis codes).

E16S Technical Specifications

The Nissan E16S is a 1,597 cc inline‑four naturally aspirated petrol engine engineered for compact hatchbacks and sedans (1985-1990). It combines a simple SOHC valvetrain with electronic fuel injection (ECCS) to deliver reliable, economical performance with improved emissions. Designed to meet the pre‑Euro emissions standards of its production era, it prioritizes durability and serviceability.

ParameterValueSource
Displacement1,597 cc
Fuel typePetrol
ConfigurationInline‑4, SOHC, 8‑valve
AspirationNaturally aspirated
Bore × stroke76.0 mm × 88.0 mm
Power output63–72 kW (86–98 PS)
Torque125–135 Nm @ 3,600 rpm
Fuel systemElectronic Fuel Injection (ECCS)
Emissions standardPre‑Euro (Market specific)
Compression ratio9.4:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemChain‑driven
Oil typeSAE 10W‑40 (Mineral/Semi‑Synthetic)
Dry weight115 kg
Practical Implications

The ECCS fuel injection provides more consistent performance and easier cold starts than carburetors but relies on sensors and the ECU. Regular oil changes (every 10,000 km) with quality 10W-40 oil are critical to prevent timing chain tensioner wear. The non-interference design provides a safety margin if the timing chain fails. Valve clearances need manual adjustment every 40,000 km. The ECCS ignition module is a known failure point; keeping the ECU compartment dry and ensuring good electrical grounds is recommended per Nissan SIB ESM-E16S-002.

Data Verification Notes

Oil Specs: Requires SAE 10W-40 specification (Nissan ESM B12 Sunny). API SF/CC or equivalent recommended.

Emissions: Pre-Euro certification applies to all models (VCA Type Approval Database for chassis B12/N13).

Power Ratings: Measured under JIS D 1001 standards. Output varies by specific ECU calibration and market (Nissan ESM B12 Sunny).

Primary Sources

Nissan Electronic Service Manual (ESM): B12 Sunny, N13 Pulsar

VCA Type Approval Database (Search by Chassis Code)

JIS D 1001 Engine Power Measurement Standards

E16S Compatible Models

The Nissan E16S was used across Nissan's B12/N13 platforms with transverse mounting. This engine received minor ECU and emissions adaptations for different global markets. All adaptations are documented in OEM technical bulletins.

Make:
Nissan
Years:
1985–1990
Models:
Sunny (B12)
Variants:
Super Saloon, Milano
View Source
Nissan ESM B12 Sunny
Make:
Nissan
Years:
1986–1990
Models:
Pulsar (N13)
Variants:
Milano, Supersaloon
View Source
Nissan ESM N13 Pulsar
Identification Guidance

Locate the engine code stamped on the flat machined surface at the front of the cylinder block, near the exhaust manifold (Nissan ESM B12). The code will read "E16S". Visual identification: Features a single cam cover and a fuel injection intake manifold with throttle body (not a carburetor). Critical differentiation from E16: E16 is carbureted; E16S has electronic fuel injection. Critical differentiation from GA16: GA16 is a later 16-valve engine with a different cylinder head. Service parts for the fuel injection system are specific to the E16S variant.

Identification Details

Evidence:

Nissan ESM B12 Sunny

Location:

Stamped on the front of the cylinder block, near the exhaust manifold (Nissan ESM B12).

Visual Cues:

Single cam cover, electronic fuel injection throttle body (not carburetor).
Compatibility Notes

Evidence:

  • Nissan ESM B12 Sunny
  • Nissan Parts Catalogue

Timing Chain:

The timing chain and tensioner are consistent across all E16S applications. Replacement kits are universal for the E16S engine code.

Fuel Injection:

The ECCS system components (ECU, injectors, sensors) are specific to the E16S and not interchangeable with carbureted E16 or later GA16DE engines.

Common Reliability Issues - NISSAN E16S

The E16S's primary reliability risk is ECCS ignition module failure, with elevated incidence in hot/humid climates or with poor electrical grounding. Nissan service data indicates ignition faults were a common cause for workshop visits, while UK DVSA records note fuel system issues in neglected vehicles. Ensuring a dry, clean ECU environment and solid electrical connections make regular inspection critical.

ECCS ignition module failure
Symptoms: Intermittent misfires, engine stalling, difficulty starting, or complete no-start condition.
Cause: Heat stress or moisture ingress damaging the internal circuitry of the ignition module, preventing spark generation.
Fix: Replace the faulty ignition module with a new OEM-specified unit; inspect and clean all associated electrical connectors and grounds.
Throttle position sensor (TPS) malfunction
Symptoms: Hesitation on acceleration, rough idle, poor fuel economy, erratic engine behavior.
Cause: Wear or contamination of the TPS potentiometer track, leading to inaccurate throttle position signals sent to the ECU.
Fix: Clean the TPS contacts with electronic cleaner or replace the sensor with a new OEM part; perform ECU relearn procedure if required.
Valve clearance issues
Symptoms: Ticking noise from the top of the engine (valve train), reduced power, increased fuel consumption.
Cause: Wear on valve stems, rocker arms, or cam lobes causing clearances to grow beyond specification, reducing valve lift duration.
Fix: Adjust valve clearances to factory specification using feeler gauges during routine maintenance (every 40,000 km).
Oil leaks from valve cover gasket
Symptoms: Oil residue on the top/rear of the engine, burning smell, drips on the garage floor or exhaust manifold.
Cause: Age-hardened or shrunken valve cover gasket losing its seal, or overtightened cover bolts warping the cover.
Fix: Replace the valve cover gasket with a new OEM part; clean mating surfaces thoroughly and torque bolts to spec in sequence.
Research Basis

Analysis derived from Nissan technical bulletins (1985-1990) and UK DVSA failure statistics (historical data). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about NISSAN E16S

Find answers to most commonly asked questions about NISSAN E16S.

Research Resources

Comprehensive technical documentation and regulatory references

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Primary Sources

NISSAN Official Site

Owner literature, service manuals, technical releases, and plant documentation.

EUR-Lex

EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).

GOV.UK: Vehicle Approval & V5C

UK vehicle approval processes, import rules, and MoT guidance.

DVLA: Engine Changes & MoT

Official guidance on engine swaps and inspection implications.

Vehicle Certification Agency (VCA)

UK type-approval authority for automotive products.

Official Documentation

Regulatory Compliance

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Framework and processes ensuring data accuracy and compliance

Regulatory Context

Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

WLTP and RDE testing procedures for emissions certification.

GOV.UK: Vehicle Approval

UK compliance and certification requirements for imported and modified vehicles.

VCA Certification Portal

Type-approval guidance and documentation.

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialNISSAN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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