The Saab B230FIZAB is a 2,290 cc, inline‑five naturally aspirated petrol engine produced between 1994 and 1998. It features a cast iron block, aluminium head, single overhead camshaft (SOHC), and Bosch LH 2.4 fuel injection. This engine was designed for durability and smooth operation, delivering 110 kW (150 PS) and 210 Nm of torque for relaxed highway cruising.
Fitted primarily to the Saab 900 (NG) and 9000 models, the B230FIZAB was engineered for refined, reliable transportation. It targeted drivers seeking a balance of adequate power, fuel efficiency, and the characteristic smoothness of Saab's inline-five configuration. Emissions compliance for its production period was met through its electronic fuel injection system.
One documented service concern is crankshaft position sensor failure, which can cause sudden stalling or no-start conditions. This issue, referenced in Saab service documentation, is often attributed to heat degradation of the sensor's internal components over time. Replacement with the updated sensor part is the standard corrective procedure.
Production years 1994–1998 meet applicable EU emissions standards for passenger vehicles in effect during those model years (EU Directive 91/441/EEC, 94/12/EC).
The Saab B230FIZAB is a 2,290 cc inline‑five naturally aspirated petrol engine engineered for mid‑size sedans and coupes (1994-1998). It combines Bosch LH 2.4 fuel injection with a robust cast iron block to deliver smooth, linear power delivery and dependable everyday performance. Designed to meet contemporary EU emissions standards, it prioritizes reliability and refinement.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,290 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑5, SOHC, 10‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 90.0 mm × 72.0 mm | |
| Power output | 110 kW (150 PS) @ 5,500 rpm | |
| Torque | 210 Nm @ 3,000 rpm | |
| Fuel system | Bosch LH 2.4 Jetronic | |
| Emissions standard | EU Directive 91/441/EEC, 94/12/EC | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven | |
| Oil type | SAE 10W-40 (API SG/CD or higher) | |
| Dry weight | Not specified in available OEM documentation |
The SOHC design provides smooth, reliable operation but offers less peak power than DOHC variants. Regular oil changes with the specified viscosity are critical for maintaining the timing chain and valve train longevity. The Bosch LH 2.4 system is generally robust but requires clean fuel and functioning sensors; a failing crankshaft position sensor is a common cause of drivability issues. The engine's iron block contributes to durability but adds weight.
Oil Specs: Requires SAE 10W-40 meeting API SG/CD or higher specification (Saab Owner's Manual, 1995). Synthetic or semi-synthetic oils meeting this spec are recommended for extended service intervals.
Emissions: Compliance certified under EU Directives 91/441/EEC and 94/12/EC for vehicles registered in the European Union during its production run.
Power Ratings: Measured under ISO 1585 (DIN) standards (Saab Technical Data Sheet, 1995). Figures represent net power output at the flywheel.
Saab Workshop Manual: 900 (NG) & 9000 (1994-1998)
Saab Owner's Manual (1995 Model Year)
Saab Technical Data Sheet (1995)
EU Directive 91/441/EEC, 94/12/EC (Official Journal of the European Communities)
The Saab B230FIZAB was used across Saab's 900 (New Generation) and 9000 platforms with longitudinal mounting. This engine received platform-specific adaptations-minor ECU tuning for different model weights and gearing-and no significant facelift revisions occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on a flat pad on the front of the cylinder block, just below the cylinder head and to the right of the oil filter housing. The full code (e.g., B230FIZAB) will be present. The 8th digit of the VIN typically corresponds to the engine type for Saab vehicles of this era. Visually, it is a 2.3L inline-five with a single cam cover and Bosch LH 2.4 components. Critical differentiation from turbocharged B2x5 engines: absence of a turbocharger, intercooler, and associated plumbing.
The B230FIZAB's primary reliability risk is crankshaft position sensor failure, with elevated incidence in high-mileage or heat-soaked engines. Saab service records frequently cite this as a cause for no-start conditions, while general owner feedback highlights the importance of cooling system maintenance. Neglecting coolant changes can lead to expensive head gasket failure.
Analysis derived from Saab technical bulletins (1994-1998) and aggregated owner repair data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about SAAB B230FIZAB.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with SAAB or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
SAAB 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.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialSAAB documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
