Diagnostic Process for Solving Typical Engine Problems
Diagnosis of engine problems is facilitated by using either an engine scan tool, or PCHUD software on a laptop computer.
Compatible Scan Tools for Delphi MT05 ECU
1. Delphi Scan Tool KF90121
2. ED100 Motorcycle Scan Tool
Connect the scan tool/computer to the diagnostic port, and check the system with the engine off. Check the following values.
ENGINE OFF VALUES
Throttle Position
The closed throttle position should read zero. The wide open throttle position should read 100. Throttle position values should smoothly transition from closed throttle, to the wide open throttle position.
Barometric Pressure
With the engine off, the barometric pressure should read the actual atmospheric pressure.
Battery Voltage
The battery voltage should normally read between 12.5 volts to 13.0 volts, with the engine off.
Coolant Temperature
With the engine off, the coolant temperature should read the value of the ambient air temperature. If the reading is different, recheck the reading after changing the coolant temperature sensor.
Intake Air Temperature
With the engine off, the intake air temperature should read the value of the ambient air temperature. If the reading is different, recheck the reading after changing the MAP/MAT sensor.
Desired Motor Step
With the engine off, the desired motor step should read 135. Otherwise, turn off the engine for 15 seconds, and recheck the value. If the value is still incorrect, recheck the value after changing the idle stepper motor.
Current Fault Code
The current fault code should be zero.
Historic Fault Code
The historic fault code should be zero.
Otherwise, clear the fault codes. If a fault code reappears after clearing the fault codes, fix the problem, or change the faulty component. Then recheck the fault codes.
__________________
Spud
"Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain
2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220
Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
|