90 ecu HELP - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

NakayamaKiyoshi · 03-02-2005, 05:11 PM

i was checking my ecu on my 90 240sx. Can someone please tell me what this means
2(slow) 3(fast) 4(fast) 5(fast) 1(slow)
and then it just repeats that. It also starts in that order.

F3600 · 03-02-2005, 09:03 PM

The codes are indicated by the number of both red and green lamps. First the red lamp flashes and then the green one. The red lamp correspond to units of ten and the green lamp to units of one. For example, when the red lamp flashes once and the green lamp flashs twice, this signifies the number "12".

The codes are:
11 Crank angle sensor circuit
12 Air flow meter circuit
13 Engine temperature sensor circuit
14 Vehicle speed sensor circuit
21 Ignition signal missing in primary coil
31 E.C.U. (E.C.C.S. control unit)
32* EGR function
33 Exhaust gas O2 sensor circuit
35* Exhaust gas temperature circuit
43 Throttle position sensor circuit
45* Injector leak
55 No malfunction

Its from the faq on 240sx.org ...

NakayamaKiyoshi · 03-03-2005, 01:13 AM

i just figured something out. I do not believe that the faq has it. What i was talking about was the initial blinking before you acually get any codes. It is to select the mode you want, 1-5.

F3600 · 03-03-2005, 07:29 AM

You need the mode 3

turn the dial fully clockwise .. wait for the led to flash 3 time and turn counter clockwise.

i hope you dont have any code hehe

NakayamaKiyoshi · 03-06-2005, 05:11 PM

i dont have any codes, except 55 of course, but my car is still not starting. all of the cylinders have good compression, fuel pump works, spark plugs work, injectors work. what else could it be?

03-02-2005, 05:11 PM	#1
NakayamaKiyoshi Leaky Injector Join Date: Feb 2005 Location: San Jose Posts: 83 Trader Rating: (0) Feedback Score: 0 reviews	90 ecu HELP i was checking my ecu on my 90 240sx. Can someone please tell me what this means 2(slow) 3(fast) 4(fast) 5(fast) 1(slow) and then it just repeats that. It also starts in that order. __________________ IMG exceeds forum limit of 400x200

03-03-2005, 01:13 AM	#3
NakayamaKiyoshi Leaky Injector Join Date: Feb 2005 Location: San Jose Posts: 83 Trader Rating: (0) Feedback Score: 0 reviews	i just figured something out. I do not believe that the faq has it. What i was talking about was the initial blinking before you acually get any codes. It is to select the mode you want, 1-5. __________________ IMG exceeds forum limit of 400x200

03-06-2005, 05:11 PM	#5
NakayamaKiyoshi Leaky Injector Join Date: Feb 2005 Location: San Jose Posts: 83 Trader Rating: (0) Feedback Score: 0 reviews	i dont have any codes, except 55 of course, but my car is still not starting. all of the cylinders have good compression, fuel pump works, spark plugs work, injectors work. what else could it be? __________________ IMG exceeds forum limit of 400x200

03-02-2005, 09:03 PM	#2
F3600 Zilvia Junkie Join Date: Apr 2002 Posts: 364 Trader Rating: (0) Feedback Score: 0 reviews	The codes are indicated by the number of both red and green lamps. First the red lamp flashes and then the green one. The red lamp correspond to units of ten and the green lamp to units of one. For example, when the red lamp flashes once and the green lamp flashs twice, this signifies the number "12". The codes are: 11 Crank angle sensor circuit 12 Air flow meter circuit 13 Engine temperature sensor circuit 14 Vehicle speed sensor circuit 21 Ignition signal missing in primary coil 31 E.C.U. (E.C.C.S. control unit) 32* EGR function 33 Exhaust gas O2 sensor circuit 35* Exhaust gas temperature circuit 43 Throttle position sensor circuit 45* Injector leak 55 No malfunction Its from the faq on 240sx.org ...

03-03-2005, 07:29 AM	#4
F3600 Zilvia Junkie Join Date: Apr 2002 Posts: 364 Trader Rating: (0) Feedback Score: 0 reviews	You need the mode 3 turn the dial fully clockwise .. wait for the led to flash 3 time and turn counter clockwise. i hope you dont have any code hehe