Diagnosis Port Error Codes

Use either a LED or an analog voltmeter to monitor the pulses from these 2 terminals. A long pulse counts as 10, a short pulse as 1.

Output Order	Error Code	Item	Visual Code
1		Engine Control Unit
2	11	Oxygen Sensor
3	12	Air Flow Sensor
4	13	Intake Air Temperature Sensor
5	14	Throttle Position Sensor
6	15	Motor Position Sensor
7	21	Engine Coolant Temperature Sensor
8	22	Crank Angle Sensor
9	23	No 1 Top dead center sensor
10	24	Vehicle Speed Sensor (Reed Switch
11	25	Barometric Pressure Sensor
12	31	Detonation Sensor
13	36	Ignition Timing Adjustment Signal
14	41	Fuel Injector
15	42	Fuel Pump
16	43	EGR (California)	This is also a common code when the ecu capacitors have to be replaced.
17	44	Ignition Coil	This is also a common code when the ecu capacitors have to be replaced.
		Normal Operation