The QG engine is a , , and straight-4 piston engine from Nissan. It is a lean-burn aluminum DOHC 4-valve design with variable valve timing and optional NEO Di direct injection.

The QG engines were designed by Nissan's Aichi Kikai division Aichi Machine Industry in Japan. Nissan websites state the QG as standing for "Quality and Green".

QG13DE The QG13DE is a DOHC 16-valve with 4-cylinder. It produces at 6000 rpm and at 4400 rpm in the initial trim. Bore x Stroke=

It is used in the following vehicles: 1999-2006 Nissan AD Van (Y11) 1998-2004 Nissan Sunny (B15) 2005-2012 Nissan Sentra N16 series for low-end models (Philippines)

QG15DE Water-cooled straight 4 cylinder engine with capacity and DOHC control. Bore and stroke are . Output is at 5600 rpm and at 2800 rpm in initial, European specifications, and later at 6000 rpm and at 4400 rpm.

This engine is used in: 1999-2004 Nissan Sunny (B15) 1999-2008 Nissan Wingroad/AD (Y11) 2002-2009 Samsung SM3 (G10)

Power outputs for N16 Almera: '00-'02: 90ps '02-'06: 98ps

QG16DE The QG16DE is a straight 4-cylinder engine with double over head camshafts with 16 valves. The cylinder head also features Nissan Variable Cam Timing (N-VCT) and micro-polished camshafts. A new water pump assembly has been designed for the QG16DE; the design is based on the water pump from the GA16DE, the changes made it more efficient and reliable than its predecessor. The engine produces at 6000 rpm and at 4000 rpm, although a variety of other power figures are shown for other years and in other installations. Bore and stroke is .

Specifications

Displacement - Layout - DOHC inline-four with Nissan Variable Cam Timing Valves - 16, 4 for each cylinder Power - at 6000 rpm Torque - at 4000 rpm Redline - 6500 rpm Fuel Delivery System - Electronic fuel injection (EFI) Ignition system - 4 coils, 1 for each cylinder Fuel Compression Ratio - 9.5:1 It is used in the following vehicles: Nissan Sunny NEO with 5-speed manual or 4-speed automatic transmission Nissan Sunny N16 series sold in Sri Lanka Nissan Primera (P11.144) 2000-2002 Nissan Primera (P12) edition sold in various countries across Europe Nissan Sentra N16 series in the Philippines and the N16 series Pulsar sold in Australia and New Zealand Renault Scala sold in Mexico and Colombia Nissan Almera sold in South Africa

QG18DD The 1.8 L direct-injection QG18DD produces at 6000 rpm and at 2800 rpm.

It is used in the following vehicles: 1999-2004 Nissan Sunny

QG18DE The QG18DE was designed for Nissan by Aichi Machine Industry, Japan. It is manufactured both in Japan and the Mexican city of Aguascalientes. Bore and stroke is . The engine is tuned to achieve most of its torque at low revs at the expense of raw power at high revs, making the engine very responsive in day-to-day driving. It has a cast-iron engine block, aluminum DOHC cylinder head, uses Multi-port fuel injection, forged-steel connecting rods, two single-piece cast camshafts and a cast-aluminum intake manifold. It also features N-VCT (Nissan's Valve Timing Control technology). This engine received the RJC Technology of The Year Award of 2001.Nissan press release, November 20, 2000: http://www.nissan-global.com/GCC/Japan/NEWS/20001120_10e.html

Specifications Displacement - Layout - DOHC Inline-4 (Straight-4) with VVT tech (called NVTC). Valves - 16, 4 for each cylinder Power - at 6000 rpm Torque - to at 2800 rpm Redline - 6500 rpm Fuel Delivery System - electronic fuel injection Fuel compression ratio - 9.5:1 Emissions Control Devices OBDII - On-board Diagnostic System. Nissan Pulsar N16 Models without EuroOBD in Australia do not have OBDII. EGR - Exhaust Gas Recirculation HO2S - (4) Oxygen Sensors (2 before exhaust catalyst, 2 after) - note a series 2 1.8l has only 2 O2 sensors: 1 pre-catalytic-converter and 1 downstream from it. TWC - Three Way Catalyst (2 in exhaust manifold, 1 under car). EVAP - Charcoal Evaporative Purge Canister. Ignition Timing: 9 degrees BTDC (can be altered +/- 2 degrees using CONSULT-II handheld diagnostic tester, e.g. ). Knock Sensor - located on engine block; retards timing if pinging/detonation is detected. Heated Throttle Body - heated by engine coolant.

The QG18DE is used in the following vehicles: 2000-2006 Nissan Sentra B15 and N16 2000-2005 Nissan Pulsar N16 1999-2002 Nissan Primera P11.144 2002-2007 Nissan Primera P12 2000-2006 Nissan Almera N16 2000-2006 Nissan Almera Tino 1999-2006 Nissan Primera 2000-2006 Nissan Expert 1998-2006 Nissan Avenir 1999-2005 Nissan Wingroad/AD van Y11 1999-2005 Nissan Bluebird Sylphy G10 1998-2004 Nissan Sunny B15

QG18DEN The QG18DEN is the natural gas version of the QG18DE. It produces at 5600 rpm and at 2800 rpm. Bore and stroke are . It was used in the Nissan AD Van from 2000 to 2008.

See also List of Nissan engines

References