1stGen.org

by **cougar** » Sat Oct 31, 2009 9:10 am

Has any one been into the 92 automatic computer? A circuit diagram would be helpful.

by **dpuckett** » Mon Nov 09, 2009 9:33 pm

As far as I know, they are a sealed, solid-state style computer- they are fixed or pitched as a unit. But, if you have the background and equipment, go for it.

DP

by **okie** » Fri Nov 13, 2009 9:35 pm

O'rilies will send them off and rebulid them, for about 250.00 or so depends whats wrong with yours I just had mine done. they have to look so don't take no for a answer. hope that helps I had no luck finding a wiring diagram.

by **cougar** » Sat Nov 14, 2009 10:16 am

I bought a spare. I want to modify it for the fun of it.

by **burnt_servo** » Sat Nov 14, 2009 11:53 am

what is there to modify ??? seriously ......

the engine is mechanicly injected , the auto trans is hydraulically controlled , except for when overdrive kicks in / out .

did i miss anything ?

by **cougar** » Sun Nov 15, 2009 10:38 am

Adjustable voltage regulator
Adjustable 5V and 8V power supplies
Adjustable sensor threshold levels
Better OD control
Those kind of things.
Once I get it "de-potted", I can start making a circuit diagram and identify each function. Once done, I can modify or make a whole new circuit. It would be nice to isolate each function as a stand alone rather than having to R&R the whole PCM to fix something simple.

by **cougar** » Sun Nov 15, 2009 10:48 am

I can also add some features while I'm at it like a throttle kicker for long idle times at low temperatures and sensor failure backups.
It gives me something to do.

by **Ace** » Sun Nov 15, 2009 2:27 pm

I spent some time working to eliminate the PCM from mine.

by **cougar** » Mon Nov 16, 2009 10:08 am

My goal is to make it more user friendly and the truck less dependent on it as/when necessary.

by **Ace** » Mon Nov 16, 2009 10:15 am

cougar wrote:My goal is to make it more user friendly and the truck less dependent on it as/when necessary.

If you crack that nut, I'd be looking over my shoulder if I were you. The big three will have a mob contract hit out on you! :lol:

by **cougar** » Sat Nov 21, 2009 9:30 am

Ace wrote:
cougar wrote:My goal is to make it more user friendly and the truck less dependent on it as/when necessary.

If you crack that nut, I'd be looking over my shoulder if I were you. The big three will have a mob contract hit out on you!

I've had worse after me (don't ask). Beside, why should they care. They don't support "antiques"

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