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Post Info TOPIC: Board identification


Guru

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RE: Board identification
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Thats correct, the ignition system is the same as that fitted to the carb models. The serial interface is not usable by external devices and is not taken to the connector.



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1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine
2000 Suzuki Vitara 1.6 8V, many mods
2004 Suzuki Ignis 1.5VVT 4Grip
2006 Suzuki Jimny 1.3VVT JLX+
and many more.



Veteran Member

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Thank you for explanation.
I was sure, that all EFI vitaras was equiped with fully functional controller. What's surprise...
So, the ignition in this case is mechanic/vacum operated like in carb models?

As I understand, serial interface is used to communication between ECU and ADC, so is not usable for externally connected devices?


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Guru

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Thats a very early Vitara 1.6 ECU, it controls injection only. I'm not aware of any diagnostic link, I would expect that serial link to go to a serial ADC as the processor hasn't got one built in. I've not yet pulled the code from one of these although its fairly straightforward to do. Thats quite an interesting ECU as it has an OTP processor rather than the more common Masked ROM.

http://rhinopower.activeboard.com/t47810180/33920-60a70-suzuki-vitara16l-8v-1988-to-1990/

Edit: If you look just below the processor there is a TC35095 which is an 8-ch serial ADC



-- Edited by Rhinoman on Tuesday 21st of August 2012 08:58:58 PM

__________________

1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine
2000 Suzuki Vitara 1.6 8V, many mods
2004 Suzuki Ignis 1.5VVT 4Grip
2006 Suzuki Jimny 1.3VVT JLX+
and many more.



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Hi,
I received ecu from unknown vitara.
I can not connect to this ecu using RV nor other software.
It has old-fashion cpu and mysterious CLK and DATA pads. Is it possible, that it uses I2C or similar protocol?
It has 33920-60A70 number on the chassis sticker.

Check out the photo. I put red arrow to point the clk/data pins.
http://zapodaj.net/10845c11c5b0b.jpg.html

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Guru

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You can download the EFI section of the service manual here:

http://www.rhinoman.org/manuals/Vitara/Vitara8V_6E

I can't find the schematic for the 56B30 PCB but its not a complex circuit to trace out. The hybrid circuit controls the injector current based on the voltage across the ceramic resistor.



__________________

1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine
2000 Suzuki Vitara 1.6 8V, many mods
2004 Suzuki Ignis 1.5VVT 4Grip
2006 Suzuki Jimny 1.3VVT JLX+
and many more.



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Rhinoman wrote:

56B30 is a US FED spec. ECU, very similar to the 56B70 and uses the same software but it is configured differently, I have lots of information here:

http://rhinopower.activeboard.com/t43171026/reverse-engineering-the-8v-tracker-sidekick-and-vitara-ecus/

I will send you the pinout, it is different to the 96-on ECUs.


 Hi,

Any chance to get this pinout?

By the way. You provided link to diagram of this unit in seetrax format.

I downloaded seetrax xl demo, but I can not open your diagram.

Can you provide it for example in pdf format? I have no injector signal and such diagram would be helpful to diagnose.



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Guru

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56B30 is a US FED spec. ECU, very similar to the 56B70 and uses the same software but it is configured differently, I have lots of information here:

http://rhinopower.activeboard.com/t43171026/reverse-engineering-the-8v-tracker-sidekick-and-vitara-ecus/

I will send you the pinout, it is different to the 96-on ECUs.



__________________

1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine
2000 Suzuki Vitara 1.6 8V, many mods
2004 Suzuki Ignis 1.5VVT 4Grip
2006 Suzuki Jimny 1.3VVT JLX+
and many more.



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Thank you.
Do you have maybe pinout description? I have only for vitaras with three sockets.


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SE416 - Vitara/Sidekick - 89~95 (8V TBI engines)



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Newbie

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Its Suzuki Vitara 1,6l 8v/no16V/, cca. 1996 year.



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Veteran Member

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Hi,

Can you help me to identify ecu, please? I've got this unit for free, but I know nothing about source. It was in chassis marked 33920-56B30 (vitara?), but connectors looks like from samurai?

See the picture:

http://pliczek.eu/images/694CIMG0317.jpg



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