[Diy_efi] Nissan engine

[Tom Visel]

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.
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