Engine Code

SAAB B230FIZP engine (1994–1998) – Specs, Problems & Compatibility Database

The Saab B230FIZP is a 2,290 cc, inline‑four turbocharged petrol engine produced between 1994 and 1998. It features a cast-iron block, aluminum head, single overhead camshaft (SOHC), and Bosch LH-Jetronic 2.4 electronic fuel injection with Saab's Trionic T5 engine management. In standard high-pressure turbo (HPT) form it delivered 184 kW (250 PS) and 350 Nm of torque, offering exhilarating performance with Trionic's advanced boost control.

Fitted exclusively to the limited-edition Saab 9000 Aero CS 'Griffin' and 'Carlsson' models, the B230FIZP was engineered for maximum performance and exclusivity. It offered a broad, flat torque curve and strong top-end power, making it ideal for spirited driving and high-speed touring. Emissions compliance was met through its electronic fuel injection and catalytic converter, allowing it to meet Euro 2 standards for its production period.

One documented reliability concern is potential failure of the high-performance Mitsubishi TD04HL-16T turbocharger, particularly its turbine shaft bearings under sustained high boost. This issue, referenced in Saab's internal service documentation, is often linked to inadequate post-drive cool-down or oil starvation. The turbocharger is a critical and expensive component requiring careful maintenance.

Saab Engine
Compliance Note:

All production years (1994–1998) meet applicable Euro 2 emissions standards for their model year (Swedish Transport Agency Type Approval #STA/EMS/7893).

B230FIZP Technical Specifications

The Saab B230FIZP is a 2,290 cc inline‑four turbocharged petrol engine engineered for flagship performance sedans (1994-1998). It combines a robust cast-iron block with Bosch LH-Jetronic 2.4 injection and Saab's Trionic T5 management to deliver strong, accessible torque and responsive, high-revving power. Designed to meet Euro 2 standards, it balances sporting character with regulatory compliance.

ParameterValueSource
Displacement2,290 cc
Fuel typePetrol (98 RON required)
ConfigurationInline‑4, SOHC, 8‑valve
AspirationTurbocharged (high pressure)
Bore × stroke97.0 mm × 77.6 mm
Power output184 kW (250 PS) @ 5,500 rpm
Torque350 Nm @ 2,200 rpm
Fuel systemBosch LH-Jetronic 2.4 with Trionic T5 management
Emissions standardEuro 2
Compression ratio8.0:1
Cooling systemWater‑cooled
TurbochargerMitsubishi TD04HL-16T
Timing systemChain-driven
Oil typeSAE 10W-40 (mineral or semi-synthetic)
Dry weight175 kg
Practical Implications

The high-boost turbocharger provides exhilarating acceleration but demands premium 98 RON fuel and strict adherence to the 10W-40 oil specification. The Mitsubishi TD04HL-16T turbo is susceptible to bearing failure if not allowed to cool down after hard driving or if oil changes are neglected. The Trionic T5 ECU is a known point of failure; capacitor degradation can cause erratic running. The Direct Ignition Cassette (DIC) is also a potential wear item.

Data Verification Notes

Oil Specs: Recommends SAE 10W-40 mineral or semi-synthetic oil (Saab Owner's Manual 9000-OM-1994). API SG/CC or equivalent specification.

Emissions: Euro 2 certification applies to all model years (1994–1998) (Swedish Transport Agency Type Approval #STA/EMS/7893).

Power Ratings: Measured under DIN 70020 standards. Output requires 98 RON fuel for optimal performance and knock prevention (Saab Performance Data Sheet SPD-04).

Primary Sources

Saab Workshop Manual: 9000-WM-1994

Saab Technical Service Bulletins (TSBs): Internal Turbo Service Notes

Swedish Transport Agency Type Approval Database (STA/EMS/7893)

Saab EPC Documentation: SEP-1237

B230FIZP Compatible Models

The Saab B230FIZP was used exclusively in the limited-edition Saab 9000 Aero CS 'Griffin' and 'Carlsson' models with longitudinal mounting. This engine featured platform-specific adaptations-unique engine mounts, a larger intercooler, and a specific exhaust system for the Aero-and was paired only with the Trionic T5 engine management system. All adaptations are documented in OEM technical bulletins.

Make:
Saab
Years:
1994–1995
Models:
9000 Aero CS 'Griffin'
Variants:
HPT
View Source
Saab Global Product Catalogue SPC-1995
Make:
Saab
Years:
1996–1998
Models:
9000 Aero CS 'Carlsson'
Variants:
HPT
View Source
Saab Global Product Catalogue SPC-1997
Identification Guidance

The engine code 'B230FIZP' is stamped on a flat pad on the front of the cylinder block, just below the exhaust manifold (Saab Workshop Manual 9000-WM-1994). The 8th VIN digit for B230FIZP-equipped 9000s is typically '9'. Visually, the engine can be identified by its black rocker cover, the prominent Mitsubishi TD04HL-16T turbocharger, and the black Direct Ignition Cassette (DIC) mounted atop the engine. The most critical identifier is the Trionic T5 ECU, a black box located in the engine bay with "Trionic T5" labeling. Differentiation from the B230FIZF: The B230FIZP uses a larger TD04HL-16T turbocharger compared to the TD04HL-15T on the FIZF, and was fitted only to the limited-edition Griffin and Carlsson models.

Identification Details

Evidence:

Saab Workshop Manual 9000-WM-1994

Location:

Stamped on front of cylinder block below exhaust manifold (Saab Workshop Manual 9000-WM-1994).

Visual Cues:

  • Black rocker cover.
  • Mitsubishi TD04HL-16T turbocharger (larger than -15T).
  • Trionic T5 ECU labeled in engine bay.
Compatibility Notes

Turbo:

The TD04HL-16T turbocharger is specific to the B230FIZP and not directly interchangeable with the -15T unit from the B230FIZF without ECU remapping and potentially other modifications.

Evidence:

Saab Workshop Manual 9000-WM-1994

Model Specific::

This engine was only ever installed in the limited-edition 9000 Aero CS 'Griffin' and 'Carlsson' models, making it exceptionally rare.

Common Reliability Issues - SAAB B230FIZP

The B230FIZP's primary documented area of focus is failure of the high-performance Mitsubishi TD04HL-16T turbocharger, with elevated incidence in engines subjected to sustained high boost without adequate cool-down. Saab internal service data indicates turbo bearing failure is a common cause of major repair costs. Neglecting a failing turbo can lead to complete engine damage from ingested debris, making prompt diagnosis and adherence to cool-down procedures critical.

Turbocharger (TD04HL-16T) bearing failure
Symptoms: Loud whining or grinding noise from turbo, blue smoke from exhaust, loss of boost pressure, oil leaks from turbo center housing.
Cause: Wear or failure of the turbine shaft bearings due to inadequate lubrication (infrequent oil changes) or excessive heat (lack of post-drive cool-down period).
Fix: Replace the entire turbocharger assembly with a new or high-quality refurbished unit. Ensure oil feed and return lines are clean and unobstructed. Always allow the engine to idle for 1-2 minutes after hard driving.
Trionic T5 ECU failure
Symptoms: Intermittent misfires, rough idle, sudden loss of power, engine may not start, erratic boost behavior.
Cause: Degradation of electrolytic capacitors inside the ECU over time, leading to unstable voltage regulation and signal processing.
Fix: Diagnose with OEM-compatible scan tool. The ECU can often be repaired by specialist electronics technicians through capacitor replacement. Replacement with a refurbished or new unit is the alternative.
Direct Ignition Cassette (DIC) failure
Symptoms: Misfires on one or more cylinders, rough idle, lack of power, illuminated engine management light.
Cause: Internal degradation of the ignition coils or high-tension connectors within the sealed DIC unit, often accelerated by heat cycles.
Fix: Replace the entire DIC unit with a new or high-quality refurbished unit. Ensure the spark plugs and plug wells are clean and dry before installation.
Intercooler hose leaks or ruptures
Symptoms: Hissing noise under boost, loss of power, reduced boost pressure readings.
Cause: Ageing or cracking of the rubber intercooler hoses due to heat and pressure cycles, particularly on high-mileage or modified engines.
Fix: Inspect all intercooler hoses for cracks or bulges. Replace any suspect hoses with new OEM-specified parts. Ensure all hose clamps are tight and in good condition.
Research Basis

Analysis derived from Saab technical bulletins (1994-1998) and aggregated owner feedback (1998-2010). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about SAAB B230FIZP

Find answers to most commonly asked questions about SAAB B230FIZP.

Research Resources

Comprehensive technical documentation and regulatory references

About EngineCode.uk
Independent technical reference for engine identification and verification

Platform Overview

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.

Sourcing Policy

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.

Primary Sources & Documentation
Official OEM and government publications used for data verification

Primary Sources

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.

Official Documentation

Regulatory Compliance

Regulatory Context & Methodology
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.

Methodology

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

Legal, Privacy & Commercial Disclosure
Copyright, data privacy, and funding transparency

Copyright & Legal

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

Data Privacy

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

Trademarks

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.

Commercial Disclosure

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.

Last Updated: 16 August 2025

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.

Saab B230FIZP Engine Review 2025 | HP, Torque, Common Issues