Nissans built in code reader - Nissan 350Z Forum, Nissan 370Z Tech Forums
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post #1 of 24 (permalink) Old 07-29-2008, 01:28 PM Thread Starter
 
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Not sure if this is common knowledge or not (I did a search and couldn't find it), but our z's have a built in code reader. No need to go to autozone, or buy a reader anymore.

Here is how it works:

By following the ECU reset procedure outlined in this site, when the SEL light starts blinking, the blinks actually mean something.

The first number of the code are long blinks, and the subsequent short blinks are the other numbers. a blink of 10 is zero. The code will keep repeating itself as long as you let it.

So 10 long blinks followed by 4 short blinks, followed by 4 short blinks, followed by 2 short blinks = code (P)0442 EVAP control system.

If you turn off the ignition while this is going on, the code is still stored, and upon start up the SEL light will appear in its normal soild state, but if you follow the reset procedure after you are done counting the blinks (Hold the accelerator pedal down for more then 10 seconds, then release pedal and turn key to off), then upon starting the car, the SEL light will be off and the code reset.
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post #2 of 24 (permalink) Old 07-29-2008, 02:01 PM
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hey, i would like to try this, but i am confused, how do u know what the codes r? like how did u know what 0442 meant?

And how did u do it again? to get something to blink?
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post #3 of 24 (permalink) Old 07-29-2008, 02:17 PM Thread Starter
 
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Follow this link for the manual ECU reset procedure, and scroll down the bottom for the codes.


https://www.350z-tech.com/zwiki/ECU_Reset

When you are following the reset procedure, they mention that the SEL light will blink, those are the blinks you count for the code.

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post #4 of 24 (permalink) Old 07-29-2008, 03:14 PM
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Well. That was interesting. Followed the instructions ..

1 (one) Long Blink
2 (two) Short Blinks
8 (eight) Short Blinks
3 (three) Short Blinks

This repeated .. the same several times. This gives me then .. I would assume ..

(P)1283

Uhhh. Don't see that code.

Edit:

Searching on the net, that error code shows on a Titan forum ..

P1283 - A/F Sensor

 Air fuel ratio (A/F) sensor 1
 Air fuel ratio (A/F) sensor 1 heater
 Fuel pressure
 Injector
 Intake air leaks


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post #5 of 24 (permalink) Old 07-29-2008, 03:50 PM Thread Starter
 
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QUOTE (eTraxx @ Jul 29 2008, 01:14 PM)
Quote:
Well. That was interesting. Followed the instructions ..

1 (one) Long Blink
2 (two) Short Blinks
8 (eight) Short Blinks
3 (three) Short Blinks

This repeated .. the same several times. This gives me then .. I would assume ..

(P)1283

Uhhh. Don't see that code.

Edit:

Searching on the net, that error code shows on a Titan forum ..

P1283 - A/F Sensor

 Air fuel ratio (A/F) sensor 1
 Air fuel ratio (A/F) sensor 1 heater
 Fuel pressure
 Injector
 Intake air leaks

Yes P1283 is a code for lean condition A/F sensor 1 bank 2

the link above does not show all the codes, but some of the more common ones, but the procedure works
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post #6 of 24 (permalink) Old 07-29-2008, 04:46 PM
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Molehalf .. post up your first name in the area under your handle if you wish .. that way I could say "Thanks much" .. Frank, or Joe or Ricardo .. (or Jane ..)

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post #7 of 24 (permalink) Old 07-29-2008, 04:49 PM
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Very good info, great to know Mole. I Stickied the thread.
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post #8 of 24 (permalink) Old 07-29-2008, 09:42 PM
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Here's the list of codes: https://www.350z-tech.com/zwiki/OBD-II_Code...Engine_Codes%29

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post #9 of 24 (permalink) Old 07-29-2008, 11:42 PM
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come on that has to be the worst way to read codes, I can just see missing a fast blink along the way and get the wrong code LOL

you have 30 bucks? buy one of these and you can read and clear the codes http://www.digimoto.com/shop/p-20-ctool-obd-ii.aspx

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post #10 of 24 (permalink) Old 07-30-2008, 11:52 PM
 
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This procedure was used with pre 1996 vehicles with OBD1 ECU's. Cycle the ignition a few times holding the gas all the way down and count the check engine light flashes. Same Sh1t Different Decade.
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