Misc: Legend Glossary

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Contents

Generations

1st Generation, G1 - Any Acura Legend with model year of 1986 to 1990.
2nd Generation, G2 - Any Acura Legend with model year of 1991 to 1995.
3rd Generation, G3 - Any Acura RL/Legend with model year of 1996 to 2004. May also be called G1 RL.
4th Generation, G4 - Any Acura RL/Legend with a model year of 2005-2012. May also be called G2 RL.

Chassis Codes

These codes are part of the VIN number on every Legend and RL. More on VIN #'s can be found here: G2: FAQ: General: VIN # Decoding. Only USDM codes are listed here.

KA2 - 1986 to 1987 Sedans
KA3 - 1987 to 1990 Coupes
KA4 - 1988 to 1990 Sedans
KA7 - 1991 to 1995 Sedans
KA8 - 1991 to 1995 Coupes
KA9 - 1996 to 2004 RL
KB1 - 2005 to 2008 RL
KB2 - 2009 to 2012 RL

Engines

More detailed information on these engines can be found in these pages (broken up by Generations): G1, G2, G3, G4.

C25A - 2.5 Liter SOHC V6. Used in G1 Legends.
C27A - 2.7 Liter SOHC V6. Used in G1 Legends.
C32A1 - 3.2 Liter SOHC V6. Used in G2 Legends. Commonly known as "Type 1" or "Type I".
C32A5 - 3.2 Liter SOHC V6. Used in G2 Legends. Commonly known as "Type 2" or "Type II".
C32A6 - 3.2 Liter SOHC V6. Used in G1 Acura TL. Not used in any Acura Legend or RL. It is a slightly modified C32A1, with upgrades to make it OBDII compatible.
C32B - 3.2 Liter DOHC V6. Used in the Acura NSX. Not used in any Acura Legend or RL. Engines are not at all compatible, no parts are interchangeable. If you have to ask about swapping this engine into your Legend, you can't handle it.
C35 - 3.5 Liter SOHC V6. Used in G1 Acura RL. Commonly swapped into the G2 Legend. See here: G2: DIY: Engine Swaps

Markets

USDM - United States Domestic Market. This refers to any OEM part that was produced for the Legends sold in the US.
JDM - Japanese Domestic Market. This refers to any OEM part that was produced for the Legends sold in Japan.
EDM- European Domestic Market. This refers to any OEM part that was produced for the Legends sold in Europe.
CDM - Canadian Domestic Market. This refers to any OEM part that was produced for the Legends sold in Canada.

Manufacturers

OEM - Original Equipment Manufacturer. This refers to any part that was made by original manufacturer, it is an exact duplication of the part that was originally used on the car. These parts are typically purchased directly from Honda and Acura dealers. It does not necessarily mean the manufacturer is Honda, as they outsource many parts to other manufacturers.
AEM - Aftermarket Equipment Manufacturer. AEM manufacturers make "clones" of the OEM parts for sale at parts stores. The quality of the part in comparison to OEM varies. May also refer to AEM Electronics, a company that makes an engine management system (EMS) compatible with many cars. Their NSX EMS can be adapted to the Legend.

Misc

T1/T2, Type 1/Type 2, Type I/Type II - These terms can refer to any part that is paired with a certain engine in the G2 Legend. For example, some parts are used only on Legends that have Type 2 engines, such as the dual-piston front brake calipers. These terms are also very often erroneously used to when referring to parts that are different between 1991-1992 and 1993-1995, or between 1991-1993 and 1994-1995, but are not in any way related to the installed engine. See G2: About The Car: Engines for details on which models the Type 2 engine was installed in. Type 1 is not an official designation, it is only used to specify that a part is not Type 2. The name "Type II" comes from the badge on the intake manifold of the C32A5 engine.
BHG/SHG - Blown HeadGasket, or Seeping HeadGasket. Both are different degrees of the same thing. This means the graphite gasket that is between the block and cylinder head is leaking. There is no specification for when a SHG becomes a BHG. SHG is only meant to suggest that the leak is not yet serious.
ECU/ECM/PCM - Engine Control Unit, Engine Control Module, or Powertrain Control Module. The ECU is the main "computer" of the car. Technically, the ECM is the computer in a Legend with a manual transmission, and a PCM is the computer in a Legend with an Automatic transmission. We use ECU to refer to either or both. You can read more on the ECU here: G2: FAQ: ECU.
ICU - Integrated Control Unit. This is an electronic control module that is located behind the interior fusebox. Its primary function involves the interior lighting.
CEL/MIL - Check Engine Light, or Malfunction Indicator Lamp. This is the light in your gauge cluster that lights up when the ECU detects a problem and stores and error code in memory.
Pulling Codes - This means to read/retrieve the error codes that are stored in the ECU memory by watching the warning lights in the gauge cluster and counting how they flash. You can read a guide on how to do this here: G2: DIY: Diagnosis: Pulling Codes
VSS - Vehicle Speed Sensor. This part is used by a number of systems in the car to detect the road speed. It is installed in the differential. It's known to fail, which most notably causes the speedometer to stop functioning or give erratic readings.
Clockspring - This is the component inside the steering wheel that allows the buttons and controls on the wheel to function while the wheel is turning. If it fails, the buttons on the wheel may stop working, or they may work only when the wheel is in a certain position.
Type A, C, E, F, or J - These are interior color codes. They are printed on the door jamb sticker. You can find details for each color, interior and exterior, here: G2: About The Car: Colors

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