S14 AFM testing

[AE82 FXGT]

Hey does anyone know how to test the afm on an s14 silvia K?

Don't know what type it is either.
I can't find much info on google, just going to look at some silvia or nissan clubs now, but if anyone can save me sometime it would be appreciated.

Thanks

[gepsk8]

lol, local auto sparky got good scan tool?
or rock over the hutt i'll get the boss's for the nite to check it,
or send it away to get bench tested.

[4agepwr]

The air flow meter is a hot wire type, you could do a self diagnostic test to see if any codes come up to do with the afm.

[AE82 FXGT]

rather not pay for an auto sparky if I can test it myself, if it needs special tools then theres not much of a choice.

Anyone know how to run a self diag on them (hopefully without special equipment)?

[4agepwr]

Find the ecu if its accessible, On the back of it there should be an led and a plastic flat type screw. Turn it clock wise. The computer will start flashing the diode and the check light on the dash board.

The code is revealed using a series of long (0.6 second) and short (0.3 second) flashes of the instrument panel engine check light and the red LED on the right-hand side of the control unit. The long flashes, which indicate the first digit of the fault code, will be given out first, then after a gap of approximately 0.9 seconds, the short flashes, which indicate the second digit of the fault code, will follow. There will be a gap of 2.1 seconds before any other codes are revealed. Once all codes have been revealed, the ECU will continuously run through the code(s) stored in its memory, revealing each one in turn with a gap of 2.1 seconds between each code. The fault codes are as follows.
Code Number Faulty circuit

11 Crank angle sensor/circuit (1988 to 1990); Crankshaft position sensor (1991 to 1996)
12 Air flow Meter/circuit open or shorted
13 Coolant temperature sensor circuit
14 Vehicle Speed Sensor signal circuit is open
15 Mixture ratio is too lean despite feedback control; fuel injector clogged
21 Ignition signal in the primary circuit is not being entered to the ECU during cranking or tuning
22 Idle speed control valve or circuit
23 Idle switch (throttle valve switch) signal circuit open
24 Park/netural switch malfunctioning
25 Idle speed control valve circuit is open or shorted
26 Turbo boost
28 Cooling fan
29 Fuel system rich
31 ECU internal problem
32 Check starter system/ EGR malfuntion
33 Oxygen sensor or circuit / EGR malfunction
34 Detonation (Knock) sensor
35 Exhaust gas temperature sensor
36 EGR transducer
37 Closed loop control/front oxygen sensor
41 Fuel temp sensor circuit. / Air temperature sensor circuit
42 Fuel temperature sensor circuit / throttle sensor circuit
43 The mixture ratio is too lean despite feedback control; fuel injector clogged / Throttle position sensor circuit is open or shorted
44 No trouble codes stored in ECU
45 Injector fuel leak
51 Fuel injector circuit open
53 Oxygen sensor
54 Short between automatic transmission control unit(TCU) and ECU
55 Normal engine management system operation is indicated All ok
63 Misfire detected - cylinder no. 6
64 Misfire detected - cylinder no. 5
65 Misfire detected - cylinder no. 4
66 Misfire detected - cylinder no. 3
67 Misfire detected - cylinder no. 2
68 Misfire detected - cylinder no. 1
71 Misfire detected - random
72 Catalytic converter malfunction (right side)
74 EVAP pressure sensor
75 EVAP leak
76 Fuel injection system
77 Rear oxygen sensor
81 Vacuum cut bypass valve
82 Crankshaft sensor
84 Automatic trans-to-fuel injection communication
85 VTC solenoid
87 EVAP canister purge control
91 Front oxygen sensor
95 Crankshaft sensor
98 Coolant temperature sensor
101 Camshaft sensor
103 Park/neutral switch
105 EGR and canister control valve
108 EVAP volume control