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Nissan QG engine
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==QG18DE== The {{convert|1769|cc|L|1|abbr=on|disp=flip}} '''QG18DE''' was designed for Nissan by [https://web.archive.org/web/20020601122512/http://www.aichikikai.co.jp/english/index.html Aichi Machine Industry], [[Japan]]. It is manufactured both in [[Japan]] and the [[Mexico|Mexican]] city of [[Aguascalientes, Aguascalientes|Aguascalientes]]. Bore and stroke is {{convert|80x88|mm|in|2|abbr=on}}. 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 rod]]s, 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 Car of the Year|RJC Technology of The Year Award]] of 2001.<ref>Nissan press release, November 20, 2000: http://www.nissan-global.com/GCC/Japan/NEWS/20001120_10e.html {{Webarchive|url=https://web.archive.org/web/20131029203342/http://www.nissan-global.com/GCC/Japan/NEWS/20001120_10e.html |date=2013-10-29 }}</ref> Specifications * [[Engine displacement|Displacement]] - {{convert|1769|cc|L|1|abbr=on|disp=flip}} * Layout - DOHC Inline-4 (Straight-4) with [[Variable valve timing|VVT]] tech (called NVTC). * [[Valves]] - 16, 4 for each cylinder * [[Power (physics)|Power]] - {{Convert|115|hp|kW|0|abbr=on}} to {{Convert|128|hp|kW|0|abbr=on}} at 6000 rpm * [[Torque]] - {{convert|122|lbft|Nm|0|abbr=on}} to {{convert|130|lbft|Nm|0|abbr=on}} 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 (codes can be read/erased by a variety of readers, e.g. {{Proper name|Actron blaZt}}). 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. {{Proper name|blaZt}}). * 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|Nissan Wingroad/AD van]] Y11 * 1999-2005 [[Nissan Bluebird Sylphy]] G10 * 1998-2004 [[Nissan Sunny]] B15
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