[Diy_efi] Nissan engine

[Tom Visel]

Many thanks.  That will (hopefully) help me avoid headaches during 
diagnosis.
TomV

Torbj?rn Forsman wrote:

> Well, I took the information from a "service message" from the swedish 
> Bosch organization (Group 250 no 5, 1982.04.21). Now when i read it 
> another time, it seems like also the earlier ECUs were manufactured by 
> JECS, but pin compatible to Bosch L-jetronic.
> It says the following (directly translated from swedish):
>
> "
> Usage of Bosch L-jetronic tester on Datsun
> ------------------------------------------
> Datsun model S 130 = 280ZX  is imported to Sweden with L-jetronic of 
> the JECS brand. Model 910 (Bluebird) is available in Sweden only with 
> carburetor or diesel. Model S 110 is not imported to Sweden.
>
> Bosch L-jetronic tester ETJ 002.02 (analogue) can not directly be 
> connected to the L-jetronic system on Datsun S 130 manufactured from 
> July 1981 on due to changed connections in the ECU and connector. To 
> test wiring harness and ECU of the new model, two adapter cables are 
> necessary. On cars before July 1981, the tester can be directly 
> connected.
>
> WARNING:
> Connection of the tester without adapter cables to the L-jetronic 
> system in cars manufactured from July 1981 on will cause damage to the 
> ECU and wiring harness due to short circuit!
>
> Identification on ECUs of the new model:
> ----------------------------------------
> 1. Instruction decal with english text on the bottom side of the ECU.
> 2. The connector of the wiring harness BLUE instead of earlier BLACK.
>
> Adapter cable 1, part number EG 113 10 100, for connection of the 
> vehicle's harness to L-jetronic tester ETJ 002.02
>
> Adapter cable 2, part number EG 113 50 100, for connection of the ECU 
> to L-jetronic tester ETJ 002.02
>
> The adapter cables can be ordered at a Datsun/Nissan representative.
> "
>
> Best regards
>
> Torbj?rn Forsman
>
> Tom Visel wrote:
>
>> How certain are you on this?  I have a reason for asking - another 
>> shop just asked me to come over and resurrect their 1978 (11/'77) 
>> 280Z restoration project.  They have two ECUs, both JECS, neither of 
>> which run the car.  Are you saying that Nissan used straight L-jet 
>> before July '81, and these two ECUs are both incorrect?  This might 
>> be consistent, as the car never ran the whole time they had it in 
>> their shop.  Now that I got the plug wires in order, it will run on 
>> brake cleaner.  Both of the ECUs are p/n A11-601 000.
>>
>> Thanks for the help,
>> TomV
>>
>>
>> Torbj?rn Forsman wrote:
>>
>>> The 280 ZX used Bosch L-jetronic on cars manufactured up to June 
>>> 1981. From July 1981 on, they use a japanese injection system (made 
>>> by JECS, Japan Electronic Control Systems) which is very similar to 
>>> L-jetronic. But beware, although the japanese ECU uses the same 
>>> 35-pin connector as L-jetronic, the pinning is completely different!
>>>
>>> Best regards
>>>
>>> Torbj?rn Forsman
>>>
>>> Ian Molton wrote:
>>>
>>>> Hey there.
>>>>
>>>> Well, I've taken on another project (despite my daily driver being 
>>>> in such bad shape - I must be mad).
>>>>
>>>> I've acquired a Datsun 280 ZX as a restoration project.
>>>>
>>>> Questions about the engine (which I havent seen yet).
>>>>
>>>> 1) Is it a Bosch L-Jet as I've seen mentioned on some sites ?
>>>> 2) Can the injection system be replaced with something more modern 
>>>> (I know the existing one is in bad shape) like Megasquirt? Has this 
>>>> 'been done' on this engine ?
>>>> 3) I know the engine can be turbo'd so any solution I add now I 
>>>> would like to be able to use after adding the turbo.
>>>> 4) I have zero experience of petrols - this one has been standing 
>>>> for 6 years so I assume its going to need some TLC to get it 
>>>> running again. A friend has said SOP is to pull the plugs and pour 
>>>> a little oil in each cylinder then turn by hand before cranking, 
>>>> then reinserting plugs, then going for a start. That seems sensible 
>>>> - but is it enough ?
>>>>
>>>> any and all advice would be appreciated.
>>>> _______________________________________________
>>>> Diy_efi mailing list
>>>> Diy_efi at diy-efi.org
>>>> http://lists.diy-efi.org/mailman/listinfo/diy_efi
>>>>
>>>
>>> _______________________________________________
>>> Diy_efi mailing list
>>> Diy_efi at diy-efi.org
>>> http://lists.diy-efi.org/mailman/listinfo/diy_efi
>>>
>>>
>> _______________________________________________
>> Diy_efi mailing list
>> Diy_efi at diy-efi.org
>> http://lists.diy-efi.org/mailman/listinfo/diy_efi
>>
>
> _______________________________________________
> Diy_efi mailing list
> Diy_efi at diy-efi.org
> http://lists.diy-efi.org/mailman/listinfo/diy_efi
>
>