I just purchased a 92 bird in pieces but we have several parts cars I know this has probably been answered before but I have no clue how to look I want to delete computer all together but not sure what I will need to save I know about the vats system but I think I can use a relay for fuel as I will be building a new motor ( what's left is junk) so I will need to get power to distributor . Not sure about instrument panel or transmission like I said it's a basket case they took dash out and completely apart not sure why and what it is missing yet but any help would be greatly appreciated this car needs to be saved it's not rusty at all just has a little front end damage which i need to check looks repairable not sure yet thanks in advance

 

I'd suppose you're going with a carb so you can forget the vats. Need a low pressure fuel pump and a regulator if your replacement block has no fuel pump mounting. Oil pressure switch would run the fuel pump fine as the carb would have gas in the bowl for starting. Early version HEI dist. with a vacuum advance. Not sure on the Pontiac but Chevy transmission is a non - E version until 94 might need a controller for the converter. Can't help with the gauge package, not sure what's from the ECM and what is basic analog.

 

It's unfortunate that the dash was gutted like that. That basically turns the car into a 1963 Oldsmobile. That makes your job a lot harder.

Running without the ECM will require a separate converter clutch control as @tom3 indicated, and that control will still need the fourth gear input from the trans and wiring for the brake pedal. On a Firebird, the input buffer box for the speedometer will need to be retained. The electric fan(s) will also need a separate controller. A new distributor will need to be installed as the original has no provision for advance. There will be no knock sensors, so conservative timing will be necessary to keep detonation under control. Since there will likely be no EGR as well, the potential for elevated chamber temperatures will be greater, contributing more to the tendency to knock. Some of that could be reduced with the right cam selection, but only to a limited extent.

One option may be one of the later stand-alone TBI injection units with an integral controller for timing and accessories, but not a lot of those can also control the trans and fans.

Would it be unreasonable to pull the harness and ECM from one of the parts cars and graft it back in? That could make it easier overall.

 

I'd be inclined to agree here; no sense in downgrading the car further, if it can be readily salvaged. Even apart from lost functionality, most "repaired" wiring is a nightmare of intermittents, connections that go bad and cause maddening troubleshooting nightmares, batteries that go dead, and so forth. IMO not something I would advise someone at the level of posting on the Internet about "how do I delete the computer" to take on.

Might want to check with some of the board sponsors that specialize in parting out wrecked cars.

 

sorry just getting back my computer died and I had to get another one! thanks for the input I do not plan for now on running any type of injection as I will later be using a sniper later now just want to install a carb and put it all the road its totally in pieces so I have to put the puzzle back together so if I can run it with the computer i would like to but i have everything not to just did not know how to make the rest work and the others we have are not new enough to use as far as computers

 

i have the harness just nothing under the hood to hook it up to