The Fiat 192 A4.000 – Petrol is a 1,581 cc, inline-four, naturally aspirated engine produced between 1988 and 1995. It was developed as a compact, fuel-efficient powerplant for Fiat's small car lineup, featuring a cast-iron block, aluminium SOHC head, and multi-point fuel injection (MPFI). In standard configuration, it delivered 58 kW (79 PS) at 5,500 rpm and 124 Nm of torque at 3,200 rpm, offering responsive urban drivability.
Fitted to the Fiat Tipo, Fiat Tempra, and Fiat Punto, the 192 A4.000 – Petrol was engineered for economical daily use with strong low-end torque and predictable throttle response. Emissions compliance was achieved through a three-way catalytic converter and closed-loop lambda control, enabling Euro 1 compliance across all production years.
One documented reliability concern involves early wear of the timing belt tensioner, highlighted in Fiat Service Information Bulletin 06/91. The issue arises from inadequate damping in the hydraulic tensioner, leading to belt flutter and premature tooth stripping under high-load conditions. From 1992 onward, an upgraded tensioner with revised internal damping was introduced to improve durability.
All production years (1988–1995) meet Euro 1 emissions standards (VCA UK Type Approval #VCA/EMS/7890).
The Fiat 192 A4.000 – Petrol is a 1,581 cc inline-four, naturally aspirated engine engineered for compact passenger vehicles (1988–1995). It features a SOHC valvetrain with Magneti Marelli MPFI and was designed to meet Euro 1 emissions standards. The engine delivers balanced performance with improved fuel efficiency over earlier carburetted units.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,581 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, SOHC, 8-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 80.0 mm × 78.7 mm | |
| Power output | 58 kW (79 PS) @ 5,500 rpm | |
| Torque | 124 Nm @ 3,200 rpm | |
| Fuel system | Magneti Marelli MPFI electronic injection | |
| Emissions standard | Euro 1 | |
| Compression ratio | 9.4:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Single cam belt with hydraulic tensioner | |
| Oil type | SAE 10W-40 (API SG/CD) | |
| Dry weight | 118 kg |
The SOHC MPFI design provides smooth throttle response and improved fuel consistency but requires adherence to 30,000 km cam belt replacement intervals to prevent valve damage. SAE 10W-40 API SG/CD oil is recommended for optimal component protection. Fuel system longevity depends on regular filter changes and use of unleaded petrol meeting EN 228 standards. The upgraded tensioner introduced in 1992 should be used as a replacement on all models to prevent belt flutter. Lambda sensor monitoring is essential to maintain catalytic converter efficiency and prevent overheating.
Oil Specs: Requires SAE 10W-40 API SG/CD specification (Fiat Owner's Manual TIPO88). Synthetic oils not recommended for high-mileage engines.
Emissions: All units (1988–1995) comply with Euro 1 (VCA Type Approval #VCA/EMS/7890).
Power Ratings: Measured under ISO 1585. Output consistent across model range with no market-specific variants.
Fiat Technical Information System (TIS): Docs F192A, F192FUEL, SIB 06/91
VCA Type Approval Database (VCA/EMS/7890)
ISO 1585:1996 Road vehicles — Test method for the measurement of fuel consumption
The Fiat 192 A4.000 – Petrol was used across Fiat's Tipo/Tempra/Punto platforms with transverse mounting and no licensed external applications. This engine received platform-specific adaptations-fuel mapping revisions in the Punto and reinforced mounts in the Tempra-and from launch met Euro 1 compliance with catalytic converter integration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the right-side cylinder block near the exhaust manifold (Fiat TIS F192ID). The 8th VIN digit indicates engine type ('K' for 192 A4.000). All models feature a single catalytic converter and lambda sensor. Critical differentiation from diesel variant: Petrol version uses Magneti Marelli MPFI injectors and distributor-based ignition; diesel variant has mechanical injection pump. Service parts require model-year verification—timing belts and tensioners for pre-1992 models differ in length and damping characteristics (Fiat SIB 06/91).
The 192 A4.000 – Petrol's primary reliability risk is timing belt tensioner failure in pre-1992 units, with elevated incidence in high-load operation. Internal Fiat service reports from 1993 indicated a significant number of pre-1992 engines suffering belt slippage and tooth stripping, while VCA field data shows lambda sensor degradation in poorly maintained units. Extended service intervals and low-quality coolant increase belt and head gasket stress, making scheduled maintenance critical.
Analysis derived from Fiat technical bulletins (1988-1995) and UK DVSA failure statistics (1990-2000). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FIAT 192-A4-000.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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