Differences

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--- techtalk:evo:engctl03 [2021/07/17 00:13]
ixl2relax [BAS - Bank Angle Sensor]
+++ techtalk:evo:engctl03 [2022/05/29 02:06]
ixl2relax [VSS - Vehicle Speed Sensor]
@@ Line 29: / Line 29: @@
 The ECM has protection against transient voltages, continuous reverse voltage protection, and damage due to jump starts. It is fully enclosed to protect it from vibration, dust, water or oil.
-The CKP sensor generates an AC signal which is sent to the ECM where it is used to reference engine position (TDC) and speed. It functions by taking readings off the 32-2 teeth on the left side flywheel (two teeth are missing to establish a reference point).
+The CKP sensor generates an AC signal which is sent to the ECM where it is used to reference engine position (TDC) and speed. It functions by taking readings off the 32minu2 teeth on the left side flywheel (two teeth are missing to establish a reference point).
 The TMAP sensor is located on top of the intake manifold. The TMAP sensor monitors the intake manifold pressure (vacuum) and intake air temperature and sends the information to the ECM where the module adjusts the spark timing and fuel curve for optimum performance.
@@ Line 119: / Line 119: @@
 The Cam Sensor Plate is used to set the base timing of the engine, from which the ICM will advance or retard the spark according to its determined needs. See the [[techtalk:evo:engctl01#ignition_timing|Ignition Timing]] information in the Sportsterpedia.
-The 1980-1993 models use CPS P/N 32400-80B (current superceding P/N) and the 1994-1997 (and 1200S models, 1998-2003) use CPS P/N 32400-94A (current superceding P/N).
+The 1980-1993 models use CPS P/N 32400-80B (current superceding P/N) and the 1994-1997 (and 1200S models, 1998-2003) use CPS P/N 32400-94A (current superceding P/N). (You can test fire the ICM from this connector: [[techtalk:evo:engctl01#manually_trigger_the_ignition_control_module_for_testing_spark|See Here]].)
-(You can test fire the ICM from this connector: [[techtalk:evo:engctl01#manually_trigger_the_ignition_control_module_for_testing_spark|See Here]].)
-{{techtalk:evo:engctl:camsensorconnpins-evo1.jpg|}}((Illustration created by IXL2Relax at the XLForum)) {{techtalk:evo:engctl:camsensorconnpins-evo2.jpg|}}((Illustration created by IXL2Relax at the XLForum))\\
 On Connector 14B (3-pins), the wires function as follows:
    * Pin(A) Red/White - 12v Power from ICM to Cam Sensor - 5v power for 1998-2003 'S' Models (( IXL2Relax at XLForum.net ))
    * Pin(B) Green/White - Rotor Signal from Cam Sensor to ICM
    * Pin(C) Black/White - Ground from ICM to Cam Sensor
+These diagrams show the CPS mating connector on the Main Harness:\\
+{{techtalk:evo:engctl:camsensorconnpins-evo1.jpg|}}((Illustration created by IXL2Relax at the XLForum)) {{techtalk:evo:engctl:camsensorconnpins-evo2.jpg|}}((Illustration created by IXL2Relax at the XLForum))\\
 (Note: the 1998-2003 Sport model uses the same Cam Sensor & Connector as the 1994-1997 models. The slotted rotor cup is different on the Sport models, having additional slots to allow for the single-fire ignition. Note also, with the new ICM module and the addition of a MAP Sensor, the power to the CMP Sensor is 5v (also to the MAP Sensor) for the 1998-2003 'S' models.)
@@ Line 138: / Line 138: @@
 When the engine is rotated, the slotted cup rotor (in the 'nosecone') on the end of the camshaft will pass thru the cam sensor creating an alternating output on Pin(B). Since the sensor has a 12v power source, the measured voltage is predicted to be from below 2v to above 10v, alternating.
-Being in an enclosed area (nosecone) of the engine, the Cam Sensor is subject to high temperatures. The potting material is subject to melting and may cause erratic timing. (This location for the Ignition Module on the 1998-2003 models also created high heat failure issues.)
+Being in an enclosed area (nosecone) of the engine, the Cam Sensor is subject to high temperatures. The potting material is subject to melting and may cause erratic timing. (This location for the Ignition Module on the 1998-2003 models also created high heat failure issues for the module.)
 |  {{:techtalk:evo:engctl:camsensorplate.jpg?300|}}\\ 1986-1993 All Models - 32400-80B Sensor Plate\\ 1994-1997 All Models - 32400-94A Sensor Plate  |  {{:techtalk:evo:engctl:camsensorplate-97-melted.jpg?200|}}((Pic from BowOnly at http://xlforum.net/forums/showthread.php?t=2076330)) \\ 1997 Cam Position Sensor Melted  |
@@ Line 178: / Line 178: @@
 ** RESULT **\\
-If any test fails - remove the CKP sensor from engine, clean any debri from sensor, reinstall properly - Recheck your results - If the unit still fails (especially if no voltage), replace the CKP.\\
+If any test fails - remove the CKP sensor from engine, clean any debris from sensor, reinstall properly - Recheck your results - If the unit still fails (especially if no voltage), replace the CKP.\\
 {{ :techtalk:evo:engctl:ckp-32707-01c.jpg?200|}}
@@ Line 483: / Line 483: @@
 Check [[http://xlforum.net/forums/showthread.php?t=800778|this XLForum thread]] for a 'FIX' to erratic speedo operation for 1995-2003 models.
-**(2004-2013)** (2004-2012 = P/N 74402-04A - 2013 = P/N 74402-05B)\\
+**(2004-2013)** (2004 only = P/N 74402-04A - 2005-2013 = P/N 74402-05B)\\
 The VSS is a 5v-based hall-effect sensor. The 5v power source for the sensor (BLACK/RED wire of the twisted pair) comes from the ICM/ECM and the pulsing output from the sensor (BLACK/BLUE wire of the twisted pair) goes to the ICM/ECM for processing. The ground connection (BLACK wire) is part of the main harness.
@@ Line 496: / Line 496: @@
 If you are able to observe the above voltage variations from the sensor, but the speedometer is still erratic or otherwise malfunctioning, be sure to test all the wiring between the sensor and the ICM/ECM as well as the Serial Data Bus connection. As a last resort, replacement of the VSS or the speedometer may be in order.
+(The 74402-04A sensor has a long attached cable while the later 74402-05B has a connector built on the sensor with the wiring being part of the main harness.)
 **(2014-on)** (P/N 74402-05B)\\
-The VSS sensor is the same 5v-based hall-effect sensor as 2013. The ECM (Engine Control Module) handles all the processing of the signals and sends data to the speedometer over the new CANbus communications connection.
+The VSS sensor is the same 5v-based hall-effect sensor as for 2013 models and the ECM (Engine Control Module) handles all the processing of the signals. The speedometer now utilizes the new CANbus to send the calculated data to the speedometer.
 Note this very informative [[http://xlforum.net/forums/showthread.php?t=1883180|__XLForum Thread__]] regarding the VSS.
@@ Line 507: / Line 508: @@
 ==== BAS - Bank Angle Sensor ====
-{{techtalk:evo:engctl:98-03-a-bankanglesensor.jpg?150|}}{{techtalk:evo:engctl:98-03-b-bankanglesensor.jpg?150|Image from Shu XLForum threadid=619957}} {{:techtalk:evo:engctl:98-03-c-bankanglesensor-internal.jpg?150|}}((pic from Diogenes415 of the XLForum http://xlforum.net/forums/showthread.php?t=2079288))\\
+{{techtalk:evo:engctl:98-03-a-bankanglesensor.jpg?150|}}{{techtalk:evo:engctl:98-03-b-bankanglesensor.jpg?150|}} ((Image from Shu XLForum threadid=619957)) {{:techtalk:evo:engctl:98-03-c-bankanglesensor-internal.jpg?150|}}((pic from Diogenes415 of the XLForum http://xlforum.net/forums/showthread.php?t=2079288))\\
 The Bank Angle Sensor, as an individual, external component, was used on Sportsters from 1998 to 2003. Using an internal v-shaped channel and steel ball, it is intended to kill the ignition if the bike lean angle exceeded 55 degrees, such as in an accident or tip over. It is attached upright, on those models, to the side of the battery box, toward the rear, using a locating pin and one screw. It has a 3-wire connector.

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