The GA engine is a 1.3 to 1.6 L inline 4piston engine from Nissan. It has a cast iron block and an aluminum head. There are SOHC & DOHC versions, 12 valve & 16 valve versions, carbureted, single-point and multi-point injected versions, and versions with variable valve timing. The GA was produced from August 1987 through 2013. Since 1998 it was only available from Mexico in the B13. In the code of the engine, the first two initials indicate engine class, the two numbers indicate engine displacement, the last two initials indicate cylinder-head style and induction type. In the case of a single-initial suffix, the initial indicates induction type.
GA13
GA13S
The GA13S is a SOHC engine, carbureted, with 12 valves.
GA13DS
The GA13DS is a DOHC engine with a carburetor. It produces at 6000 rpm and at 3600 rpm. Bore and stroke are. Applications:
The GA13DE is a engine with DOHC and electronic gasoline injection. Bore and stroke are. It produces at 6000 rpm and at 4400 rpm. It was used in the 1995-1999 Nissan Sunny.
GA14
GA14S
The GA14S is a engine, SOHC, carbureted, with 12 valves. It produces at 6200 rpm and at 4000 rpm. It was used in the B12 Sentra and the N13 Sunny/Sentra. Compression ratio is 9.4:1.
GA14DS
The GA14DS is a 16V DOHC engine with carburetor and a 9.5:1 compression ratio. It produces at 6000 rpm and at 4000 rpm. Redline is at 6500 rpm. Catalyzed models come with electronically controlled carburetors. In this version the most common problem is the air/fuel ratio solenoid in the carburetor. Applications:
1990-1998 Nissan Sunny N14
1990-1994 Nissan Sunny B13
1992-1995 Nissan Sentra B13 Series JX and EX models.
1996-1997 Nissan Sentra B14 series EX models.
GA14DE
The GA14DE is a 16V DOHC fuel injection engine. The bore x stroke is the same as for other GA14 family engines:. It produces at 6000 rpm and at 4000 rpm. Redline is at 7200 rpm. Applications:
The GA15E is a multi point fuel injected SOHC engine. It produces at 6000 rpm and at 4400 rpm. It was used in the Nissan Pulsar, including such models as the 1988 X1-E Milano.
GA15DE
The GA15DE is a engine with DOHC and electronic throttle-body fuel injection. It was introduced in December 1993 and uses Nissan's ECCS engine control system admission. In Japanese market passenger car specification it produces at 6000 rpm and at 4000 rpm. Commercial vehicle-spec engines produce at 6000 rpm and at 4000 rpm. Applications:
The GA16S is a SOHC engine with a bore and stroke of. The GA16S has twelve valves, solid valve rockers, and is fitted with a carburetor. It produces . For some markets, such as South Africa, there was also an eight-valve version which produces at 5500 rpm. In the New Zealand market N13 Sentra, it produces at 6000 rpm and at 3200 rpm, with a compression ratio of 9.4:1.
GA16E
The GA16E is a multi-point fuel injected SOHC engine. It produces.
GA16i
The GA16i is a throttle-body fuel-injected engine produced from August 1987 through June 1990, which produces. It is a single-cam, 12-valve design, with manually adjustable rocker arms. 1989 and 1990 North-American market Sentras and European N13 Sunnys received the hydraulic-rocker version which produced and of torque. Applications:
The GA16DE is a engine produced from November 1990 through 1999. All GA16DEs have sixteen valves and a DOHC head. There are three versions: the North-American first-generation NVCS, which produces at 6000 rpm and at 4000 rpm, the North-American second-generation NVCS, which produces at 6000 rpm and at 4000 rpm, and a non-NVCS version which makes. The two variants of the North American NVCS engine are distinguished as such: in addition to differences in the intake manifolds and the heads, earlier motors used pistons with two compression rings and a single oil ring and put out five less horsepower, while later GA16DEs have a single compression ring and a single oil ring. The GA16DE shares its block and crankshaft with its predecessor, the GA16i; however, their timing chain covers, connecting rods and pistons are altogether different. It is possible to interchange connecting-rod/piston assemblies between the GA16i and GA16DE with no danger to the valve train. Some engines have siamesed exhaust manifolds, while others keep the exhausts separated until the catalytic converter. Earlier ECUs contained the fuel & ignition maps on a discrete ROM IC, making retuning relatively easy, later ECUs buried the maps on a larger more integrated microcontroller's firmware, making retuning require the use of a daughterboard. Applications:
The GA16DS is a carbureted only engine with a 16-valve DOHC head. Models equipped with a catalyst use the electronically controlled carburetor. It produces between and. Without catalyst:. ;Applications:
Also fitted to the Nissan Sentra B13 from Japan, called EX Saloon.
GA16DNE
The GA16DNE is a Mexican-specification engine, which produces. The main differences between the DE and DNE are: the DNE has no VTC and no ECCS plenum. The DNE has a vertical throttle body with an MAF inside; the air filter is diagonally oriented in its air filter housing. This variant also was released in some southeast Asian models The "N" in its nomenclature means "New EGI", meaning this engine does not have an EGR system like the GA16DE. Since 2003, the DNE variant comes with a new ECU and 3 oxygen sensors. Applications:
