The Opel Z14XEP 1.4 engine is an all-aluminum, in-line 4 cylinder engine designed to meet the needs of a variety of vehicles. Featuring state-of-the-art technology and engineering design principles, this engine is both reliable and efficient. With dual overhead camshafts, 16 valves, continuously variable intake and exhaust camshaft phasing, and optimized compression ratio, the Opel Z14XEP 1.4 gives you optimal performance throughout the entire ignition spectrum.
The output power delivers excellent economy without sacrificing emissions performance or smoothness of operation. An advanced valvetrain system further enhances efficiency for this robust engine’s extended life span. The Z14XEP 1.4 has been proven as an excellent addition to a wide range of vehicles from sporty compacts to luxury SUVs, providing outstanding fuel efficiency with optimal performance that can be relied upon for years to come.
Opel’s 1.4-liter Z14XEP or LJ2 engine was produced in Austria from 2003 to 2010 and was fitted to many of the company’s compact models like the Astra, Corsa, Combo and Meriva. This unit is one of the most mass-produced low-volume engines with the Twinport system.
The Z10 series also includes the twin-port engines: Z10XE, Z10XEP, Z12XE, Z12XEP and Z14XE.
Engine specifications for Opel Z14XEP 1.4 Twinport
| Displacement | 1364 cc |
| Power system | Distributor Injection System |
| Engine power | 90 hp |
| Torque | 125 Nm |
| Cylinder block | Cast iron R4 |
| Cylinder head | Aluminum 16v |
| Cylinder diameter | 73.4 mm |
| Stroke | 80.6 mm |
| Compression ratio | 10.5 |
| Hydraulic compensators | Yes |
| Timing Chain/Belt | Single-row chain |
| Variable Valve Timing (VVT) | No |
| Turbocharger | No |
| Oil capacity/Recommended oil | 3.50 l 5W-30 |
| Fuel type | Medium/Plus |
| Euro class | EURO 4 |
| Average lifespan | 275 000 km |
The dry weight of the Z14XEP engine is 105 kg
The Z14XEP engine number is located on the block and gearbox junction
Fuel consumption Opel Z14XEP
The 2006 Opel Astra with manual transmission as an example (l/100km):
| City | 8.2 l |
| Highway | 5.2 l |
| Combined | 6.3 l |
What cars use the Z14XEP 1.4 l 16v
| Astra G (T98) | 2003 – 2009 |
| Astra H (A04) | 2004 – 2010 |
| Corsa C (X01) | 2003 – 2006 |
| Corsa D (S07) | 2006 – 2009 |
| Combo C (F06) | 2004 – 2010 |
| Meriva A (X03) | 2004 – 2009 |
Problems & disadvantages of the Z14XEP
- The Ecotec Z14XEP’s 1.4 TwinPort engine is known to have a high oil consumption rate, with up to one liter of oil lost after every 1000 kilometers traveled.
- Renovations are needed in order for the engine to go on an “oil diet” and can cost around $550.
- The time chain has been reported as being maintenance free but can stretch before it has exceeded the distance of 150,000-160,000 kilometers if not regularly refilled with lubricant.
- An undulation issue may be caused by a clogged EGR valve while good news for owners is that repairs tend to be inexpensive at auto shops and these units can cover distances of up 400,000 kilometers without major repairs
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