hack the gibson
03-18-2008, 08:30 AM
#1
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Thread Starter
Join Date: Feb 2005
Location: IL
Posts: 129
hack the gibson
Hey, i was wondering if anyone out there has heard of or knows anything about connecting a laptop to the onboard computer in a 80 280zx. Im sure theres all kinds of wonderful misc. info that can be gleaned from it and tinkered with to get the most out of malaise era cars like that. Just wondering.
03-18-2008, 08:41 AM
#2
The Evil Twin
Join Date: Mar 2001
Location: Seattle, WA
Posts: 9,294
The 80's computer was so primitive that it can not be hacked or hooked up to. Its approx a 4 bit calculator. There is nothing to hack.
Swap it out for a 1989 300ZX ECU and you can have it re-programmed professionally.
Swap it out for a 1989 300ZX ECU and you can have it re-programmed professionally.
03-18-2008, 08:49 AM
#4
The Evil Twin
Join Date: Mar 2001
Location: Seattle, WA
Posts: 9,294
It controls all six injectors together as one. It opens the one bank of injectors in pulses based on 3 main in puts. (I think)
Air flow meter: how far the flap has moved
Throttle position sensor: idle, cruise, or full throttle. (only 3 positions)
Oxygen sensor: minor adjustment for exhaust richness
Its not a very precise fuel injection system so there's really not a lot that tweaking will do. Going to something with a better oxygen sensor and a far better metering device will do wonders for power and economy.
The common (and cheap) upgrade is to use late 80's Nissan 300ZX components. This is a Z31 ECU swap.
The last 2.5 years (mid 1987 to 1989) had 16bit digital ECUs and could be re-programed. Their factory function was very simular to the 1984-86 ECUs though. The late ECU opperates only two banks of 3 injectors. Better than just one bank though.
If you want someting programable by your laptop, search for info on MegaSquirt. Its a fuel injection computer you can build youself. You may like it since you're in IT.
Air flow meter: how far the flap has moved
Throttle position sensor: idle, cruise, or full throttle. (only 3 positions)
Oxygen sensor: minor adjustment for exhaust richness
Its not a very precise fuel injection system so there's really not a lot that tweaking will do. Going to something with a better oxygen sensor and a far better metering device will do wonders for power and economy.
The common (and cheap) upgrade is to use late 80's Nissan 300ZX components. This is a Z31 ECU swap.
The last 2.5 years (mid 1987 to 1989) had 16bit digital ECUs and could be re-programed. Their factory function was very simular to the 1984-86 ECUs though. The late ECU opperates only two banks of 3 injectors. Better than just one bank though.
If you want someting programable by your laptop, search for info on MegaSquirt. Its a fuel injection computer you can build youself. You may like it since you're in IT.
03-19-2008, 02:00 AM
#12
eff good grammar
Join Date: Dec 2007
Location: Deadford OR
Posts: 1,578
Originally Posted by duowing
There, I broke it.
03-19-2008, 06:27 AM
#13
Originally Posted by Niku-Sama
i dont see why you would want to go more with a more complicated computer on a simple car. and i thought my wanting to use a bladed fuse box was picky
03-19-2008, 11:22 AM
#16
NisTuner
Join Date: Sep 2005
Location: Cleveland, Ohio
Posts: 2,800
ECCS analyzer, and pretend you have control?
What do you need to do to the later ECUs exactly to be able to access them. Also if I'm not mistaken I think you can use Nistune with the earlier Z31 ECUs. I think primarily because it's their own board that just goes inside the ECU.
What do you need to do to the later ECUs exactly to be able to access them. Also if I'm not mistaken I think you can use Nistune with the earlier Z31 ECUs. I think primarily because it's their own board that just goes inside the ECU.
Last edited by duowing; 03-19-2008 at 11:24 AM.
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