How to make 86 jetronic work in 79 930

[Mikesavina]

I’m a newb when it comes to CIS and 911’s. I am building a 79 930 that I purchased as a rolling chassis. I then purchased an 86 3.3 turbo engine with harness and jetronic box. I can’t find any reminents of such a control unit on the 79 chassis. So my questions are

1) what does the jetronic ECU control? Is it just 02 sensor?

2) does the ECU get its power from the engine? What all needs happen Ike’s up to make it run?

3) Can you identify the connectors in the pic marked with an arrow and tell me what their function is?

Thanks for your help. I’m pulling out my already rapidly decreasing hair. I’ll include a pic of the unit and wiring for reference

[Mikesavina]

Originally Posted by Mikesavina

I’m a newb when it comes to CIS and 911’s. I am building a 79 930 that I purchased as a rolling chassis. I then purchased an 86 3.3 turbo engine with harness and jetronic box. I can’t find any reminents of such a control unit on the 79 chassis. So my questions are

1) what does the jetronic ECU control? Is it just 02 sensor?

2) does the ECU get its power from the engine? What all needs happen Ike’s up to make it run?

3) Can you identify the connectors in the pic marked with an arrow and tell me what their function is?

Thanks for your help. I’m pulling out my already rapidly decreasing hair. I’ll include a pic of the unit and wiring for reference

[Alan L]

Those look like standard plugs.
From memory I am running an 86 engine in my 82 chassis.
There was a TPS on the engine - which I don't use.
Alan

[Mikesavina]

Originally Posted by Alan L

Those look like standard plugs.
From memory I am running an 86 engine in my 82 chassis.
There was a TPS on the engine - which I don't use.
Alan

Do you have anything else in the cabin under the seat that is hooked up to the module?


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[Alan L]

Nope.

[Mikesavina]

Originally Posted by Alan L

Nope.

That helps. Thanks Alan

[OSI930]

Take a look at this post. Very informative.

Made a fuse box label for my 88

[Mikesavina]

Originally Posted by OSI930

Take a look at this post. Very informative.

Made a fuse box label for my 88

Thank you!!! I was looking for that and couldn’t find it

[Alan L]

Mine is a RoW car (ex Japan), so I think it is missing some bits yours may have - incl that box.
Alan

[Mikesavina]

Originally Posted by Alan L

Mine is a RoW car (ex Japan), so I think it is missing some bits yours may have - incl that box.
Alan

Yeah from what I understand the RoW cars were different

[Alan L]

My wiring is for the 82 engine type (same as your 79). And it has all it needs to run the basics on the 86. There is no lambda loop, TPS, speed limiter thing etc. Doesn't need it.
Alan

[Mikesavina]

Originally Posted by Alan L

My wiring is for the 82 engine type (same as your 79). And it has all it needs to run the basics on the 86. There is no lambda loop, TPS, speed limiter thing etc. Doesn't need it.
Alan

I talked to Brian @rarly8 and he’s going to convert my stuff so I’m all good thankfully

[Alan L]

Thats a good plan. Can't go wrong.
Alan