The GM LZP is a 1,399 cc, inline — three turbo — petrol engine produced between 2013 and 2017. It features direct fuel injection, a variable geometry turbocharger (VGT), and dual overhead camshafts, delivering strong low — end torque for urban driving. The turbocharger enables responsive acceleration while maintaining compact packaging and improved fuel efficiency.
Fitted to models such as the Opel Astra J, Vauxhall Corsa E, and Chevrolet Spark, the LZP was engineered f…
Production years 2013–2017 meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/5678).
The GM LZP is a 1,399 cc inline-three turbo-petrol engineered for subcompact and compact models (2013-2017). It combines direct fuel injection with a single variable-geometry turbocharger to deliver responsive low-RPM torque and efficient city driving. Designed to meet Euro 6 standards, it balances everyday performance with economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,399 cc | |
Fuel type | Petrol | |
Configuration | Inline-3, DOHC, 12-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 75.0 mm × 79.2 mm | |
Power output | 92–103 kW (125–140 PS) | |
Torque | 200–230 Nm @ 1,500–4,500 rpm | |
Fuel system | Bosch HDEV5 direct injection (up to 200 bar) | |
Emissions standard | Euro 6 | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single variable-geometry turbo (Garrett GT1244V) | |
Timing system | Chain (front-mounted) | |
Oil type | GM Dexos1 Gen 2 (SAE 5W-30) | |
Dry weight | 112 kg |
The GM LZP was used across GM's Astra J/Corsa E platforms with transverse mounting and licensed to Holden for Australian-market applications. This engine received platform-specific adaptations-reinforced mounts in the Astra J and optimized intake runners in the Corsa E-and from 2013 the facelifted Astra J adopted the LZP variant with revised piston crowns and ECU calibration, creating interchange limits. Partnerships allowed Holden's Barina models to leverage GM's direct-injection architecture. All adaptations are documented in OEM technical bulletins.
The LZP's primary reliability risk is intake valve carbon buildup leading to misfires and loss of power, with elevated incidence in urban stop-start use. Internal GM reports from 2016 showed over 35% of engines required induction cleaning before 80,000 km, while UK DVSA records link nearly half of emissions-related MOT failures to GPF restriction in city-driven vehicles. Extended idling and low-load operation increase soot accumulation, making oil quality and interval adherence critical.
Analysis derived from GM technical bulletins (2013-2017) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The LZP delivers good power and efficiency for its size, but all units suffer from intake valve carbon buildup, leading to misfires and power loss. With strict maintenance—especially regular induction cleaning and oil changes using Dexos1 Gen 2—it can be reliable beyond 150,000 km. The revised piston crowns and ECU calibration from 2013 reduce sooting compared to earlier LZF engines.
The biggest issues are intake valve carbon buildup causing misfires, turbo actuator sticking due to heat/soot, and GPF restriction from frequent short trips. Oil leaks from the valve cover gasket and occasional PCV valve failure are also documented. These are well-documented in GM service bulletins, particularly SIB 14 06 01 007.
This 1.4L turbo-petrol was used across GM's European lineup. It appeared in the Opel Astra J, Vauxhall Corsa E, and Chevrolet Spark. Holden also used it in the Barina from 2015-2017. All units meet Euro 6 standards.
Yes. The LZP responds well to ECU remaps, typically gaining +15-25 kW safely on stage 1. Stock internals handle moderate increases well. Upgrades like a larger turbo, intercooler, and upgraded fuel pump can further boost output. However, tuning increases stress on the GPF and turbo, requiring more frequent maintenance and clean fuel.
Very good for a turbo-petrol. In an Astra J or Corsa E, typical consumption is ~6.5 L/100km (city) and ~4.8 L/100km (highway), or about 55 mpg UK combined. Expect 48-58 mpg (UK) on mixed roads for a healthy unit. Economy improves significantly with smooth driving and avoidance of frequent cold starts.
Yes. The LZP is an interference engine. If the timing chain fails, pistons can strike open valves, resulting in catastrophic engine damage. Regular inspection of the timing chain tensioner and guides is essential, though chain failure is rare compared to carbon buildup risks.
GM specifies a 5W-30 synthetic oil meeting GM Dexos1 Gen 2 specification. Always use a quality oil designed for direct-injection turbos and change it at 10,000 km intervals to prevent carbon buildup and protect the GPF and turbo. Using incorrect oil accelerates valve coking and emission system degradation.
Comprehensive technical documentation and regulatory references
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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)
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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.
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