1993 Obd1
All you will need is the PCM, harness, 94-95 O2 sensors, splice in your 93 IAC connector on the 94 harness, change your Ignition control module to the 94-95 style, and I think the TPS is different. You will also have to change a couple of wires on the white and blue plugs on the harness that goes through the firewall (I have that info if you need it). And add a MAF sensor.
I went from using the stock 93 computer to coverting to OBD1 and now to the FAST XFI. So I have ya covered if you need help. LOL
I went from using the stock 93 computer to coverting to OBD1 and now to the FAST XFI. So I have ya covered if you need help. LOL
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From: The beautiful Kingdom of Bahrain
Originally Posted by Tony Shepherd
All you will need is the PCM, harness, 94-95 O2 sensors, splice in your 93 IAC connector on the 94 harness, change your Ignition control module to the 94-95 style, and I think the TPS is different. You will also have to change a couple of wires on the white and blue plugs on the harness that goes through the firewall (I have that info if you need it). And add a MAF sensor.
I went from using the stock 93 computer to coverting to OBD1 and now to the FAST XFI. So I have ya covered if you need help. LOL
I went from using the stock 93 computer to coverting to OBD1 and now to the FAST XFI. So I have ya covered if you need help. LOL
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From: The beautiful Kingdom of Bahrain
Thanks. Another issue I just thought of is theyre to part numbers for 94-95 ECM's. One for the Vette and one for the Camaro. The only difference between the two is the vette can do the fuel average calculation stuff. The other ecm doesnt have the provission.
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From: The beautiful Kingdom of Bahrain
Awesome. Did you plan on doing this at one point? What do you think the benifits would be from the swap? In all honesty this is going to sound stupid but my biggest reason for wanting obd1 is so I can keep my Scanmaster. I love the darn thing so much.
Originally Posted by Honda Hunter
Awesome. Did you plan on doing this at one point? What do you think the benifits would be from the swap? In all honesty this is going to sound stupid but my biggest reason for wanting obd1 is so I can keep my Scanmaster. I love the darn thing so much.
Much easier to tune with OBD1. 
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From: The beautiful Kingdom of Bahrain
Originally Posted by Tony Shepherd
I have done it. Been there done that. Much easier to tune with OBD1.
Much easier to tune with OBD1. Thread Starter
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From: The beautiful Kingdom of Bahrain
Originally Posted by justav6iswear
lol, that is a lot of work to keep a scanmaster, but I feel ya man, I dont remember how I drove without one before!
Originally Posted by Honda Hunter
Then it's settled. I'm doing the swap. Just need to figure out where I'm going to get all the stuff. I'm installing my Camaro engine in the Vette within the next 2 weeks so I need to get everything ready asap.
It can be done but I dont have the wiring info for you.
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From: The beautiful Kingdom of Bahrain
Originally Posted by Tony Shepherd
Now wait........is this going into a 92-93 vette? If so..............I dont have the wiring diagrams for that. Only the F-body speed density to OBD1 conversion I have done. I have not done it to a corvette. May be more work involved. Im sorry....I was thinking you had an f-body.
It can be done but I dont have the wiring info for you.
It can be done but I dont have the wiring info for you.
Originally Posted by Honda Hunter
It's the same. Just very minor diffs that dont effect anything. I know this because I was going to swap a LT1 into a 86 vette using a 94 Camaro wiring harness and computer.
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From: Boston/Bahrain
different setup... for example, do you have a maf on your c4? i dont think the 93's had those, so thats some of the data that the computer doesnt send out... amongst other things, the computer just gives totally different data
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What are 94s? OBD1? and my SES light just flashes on and off randomly....i tried to get a code with the little prong thing and it doesnt even work, it does nothing,even the peopel at autozoen were liek "wtf?" lol....anyone ever seen such a hing? only thing i can think of is the diagnostic system is dead 
if you check engine light is flashing then more than likely its a misfire... and i wouldnt ask autozone to scan my car, cuz they dont know what they are talking about... they told some guy i met the other day on his 98 TA, that he was having a false code keep coming up... well it was a knock sensor code... they told him the LS1's always get false knock codes and not to worry about it... oh yea... 4 rods fell into the bottom of the pan a short time later......