[Mk2] [Turbo] Error codes

[THE DUKE]

rev 3 turbo

codes:

14 - Ignition indicator
21 - Dx indicator????
31 - Air flow meter

Whats a dx indicator? Rev3 has no AFm so why the codes?

[THE DUKE]

Code: System Diagnosis
11 ECU (+B) Momentary interruption in power to ECU
12 RPM Signal No NE or G signal to ECU within 2 seconds after engine has been cranked.
13 Ignition Signal No NE signal to ECU when engine speed is above 1,000 rpm
14 Ignition Signal No IGF signal to ECU 8-11 times in succession
21 Oxygen Sensor/Heater cct Detection of oxygen sensor deterioration or open or short in oxygen sensor heater.
22 Water Temp Signal Open or short in water temp. sensor signal (THW).
24 Intake Air Temp. Sensor Open or short in intake air temp. sensor signal (THA).
25 Air-fuel Ratio Lean Malfunction Oxygen sensor outputs a lean signal continuously for several seconds during air-fuel ratio correction. Open or short in oxygen sensor (OX).
26 Air-fuel Ratio Rich Malfunction Oxygen sensor outputs a rich signal continuously for several seconds during air-fuel ratio correction.
31 Air-Flow Meter Signal Open cct in VC signal or short cct between VS and E2 when idle contacts are closed.
32 Air-Flow Meter Signal Open cct in E2 or short cct between VC and VS.
34 Turbocharging Pressure Signal Fuel cut-off due to high turbocharging pressure.
35 Turbocharging Pressure Sensor Signal Open or short in turbocharging sensor pressure signal (PIM).
41 Throttle Position Sensor Signal Open or short in throttle position sensor signal (VTA).
42 Vehicle Speed Sensor Signal No SPD signal for 8 seconds when engine speed is between 2,500rpm and 6,000rpm and coolant temperature is below 80C (176F) except when racing the engine.
43 Starter Signal No STA signal to ECU until engine speed reaches 800rpm with vehicle not moving.
52 Knock Sensor Signal Open or short in knock sensor signal (KNK).
53 Knock Sensor Control Signal in ECU Knock control in ECU faulty.
51 Switch Signal No IDL signal or A/C signal to ECU, with check terminals TE1 and E1 shorted.

[THE DUKE]

14 Ignition Signal No IGF signal to ECU 8-11 times in succession
21 Oxygen Sensor/Heater cct Detection of oxygen sensor deterioration or open/ short in oxy sensor heater.
31 Air-Flow Meter Signal Open cct in VC signal or short cct between VS and E2 when idle contacts are closed.


Anyone know any fixes