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Discussion Starter #1
Hey fellas,

Anyone have a list of ECU codes for a '95 G20? The codes I got were:

33 - Oxygen Sensor
77 - ?
91 - ?
105 - ?

I need help with the last three. The European Primera manual and a 1993 FSM I borrowed from BritcG20 don't list those codes. Thanks for any help. :-\
 

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Oh, nevermind...I found a complete list. Here's the list for anyone's reference. This is for Nissan until 1997:

CODE PROBABLE CAUSE for Nissan vehicles until 1997:

11 Crank angle sensor/circuit (1988 to 1990); Crankshaft position sensor (1991 to 1996)
12 Air flow Meter/circuit open or shorted
13 Cylinder head temperature sensor(Maxima and 300ZX models); all others 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 Fuel pump circuit (Maxima and 1987 and later 300ZX models); all others 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 1984 through 1986 EFI models; Problem in air conditioning system; all other models: ECU internal problem
32 1984 through 1986 EFI models; check starter system. All other models: EGR malfuntion (California models)
33 Oxygen sensor or circuit (300ZX left side) - all other models EGR malfunction
34 Detonation (Knock) sensor
35 Exhaust gas temperature sensor (California models)
36 EGR transducer
37 Closed loop control/front oxygen sensor (Maxima)
41 Maxima and 1984 through 1987 300ZX models; fuel temp sensor circuit. All other models: air temperature sensor circuit
42 1988 and later 300ZX models; fuel temperature sensor circuit; all other models: throttle sensor circuit
43 The mixture ratio is too lean despite feedback control; fuel injector clogged (1987 Sentra only): All others; Throttle position sensor circuit is open or shorted
44 No trouble codes stored in ECU
45 Injector fuel leak (California models only)
51 Fuel injector circuit open (California models only)
53 Oxygen sensor (300ZX right side)
54 Short between automatic transmission control unit(TCU) and ECU
55 Normal engine management system operation is indicated
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



Damn, so it's just stupid emissions crap making my engine light come on. I can deal with that.:p
 

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Mike.Com said:
Hey fellas,

Anyone have a list of ECU codes for a '95 G20? The codes I got were:

33 - Oxygen Sensor
So the 33 is actually a EGR malfunction on our cars and not a O2 sensor. Huh! That's what I got about a month ago. I reset the ECU, it came back 2 days later, reset the ECU again and it has not come back again. Hmm? Makes me wonder. I was about to go buy a O2 sensor when it happened the 2nd time. Guess I don't have to buy it now.
 
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Sorry for the random bump, but I need to subscribe to this thread. I think I am getting either a 43 or 34. I dont remember the order of the flashes. Thanks Mike for the info.
 

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Where can I get a code reader at???
 
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You can read codes just by looking at them. reset your ecu and then look at the led that blinks.

EDIT: Be sure to turn the screw back after your done.
 

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Heh, oh that kinda code...ok i thought you were tlaking about the underside of the dash plug in code reader.....thx for the kick in the ass.
 
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they will blink in a pair, i think its like first one is slow then the second one fast, are vice versa. there is a little pause in between them. So, if it blinks fast the first time liek 3 times, then pauses then blinks slow 4 times you have a code of 34.
 

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I just reset my ECU because my CEL went on for some reason, replacing my starter? Anyway, I got code(s) 84 & 98. Now, I need to know where exactly the location of auto trans-to-fuel injection communication thing & the coolant sensor. I got rid of the light..., how do I solve the problem codes? Please help me out folks.
Thanks ;)
 

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Thanks a lot for the codes

Thanks a lot for the ECU trouble codes. I have FSM for 1993+ G20, but it does not list any codes above 55. My '95 G20 got codes 34 and 105, and I can't get them anywhere.
Really appreciate your code list.
Regards, ee5.
 
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