TBI to Carb wiring Help
#1
TBI to Carb wiring Help
I have read all the FAQs and they are not answering my questions.
Basically I have a 91 camaro which was TBI. The ECM and engine harness has been removed but the gauge harness, lights, wipers, fogs, a/c, cruise still remain. I have a carbed donor car which had no A/C but has the complete harness for carb. Can I simply plug the harness for the engine/carb controls and sensors into the existing gauge harness and have it all still work or no? Haynes manual does not distinguish between years so I assume it is the same.
I also have a non-ECM controlled distributor and the relays for the fuel pump and fans remained behind.
Thanks in advance.
Basically I have a 91 camaro which was TBI. The ECM and engine harness has been removed but the gauge harness, lights, wipers, fogs, a/c, cruise still remain. I have a carbed donor car which had no A/C but has the complete harness for carb. Can I simply plug the harness for the engine/carb controls and sensors into the existing gauge harness and have it all still work or no? Haynes manual does not distinguish between years so I assume it is the same.
I also have a non-ECM controlled distributor and the relays for the fuel pump and fans remained behind.
Thanks in advance.
#2
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Car: 86 T/A - 70 Z28/RS
Engine: Broke - 350
Transmission: 700R4 - M22
Axle/Gears: G80, 2.73 - ZQ9 G80 4.10
Re: TBI to Carb wiring Help
Your 91 Camaro has a speed sensor speedo. More than likely your donor car, if a Camaro, will have a cable driven speedo. You will be missing the two wires from the trans tail shaft going through the ECM bulkhead connector to the speedometer buffer board.
Carb cars use a mechanical fuel pump so you will still have to wire the fuel pump relay and use a bypass regulator to set the fuel pressure.
Here is a good link for schematics. http://www.austinthirdgen.org/index.php?pid=19
If you not going to use the ECM then you will also have to figure out how to wire up the TCC circuit as well.
Carb cars use a mechanical fuel pump so you will still have to wire the fuel pump relay and use a bypass regulator to set the fuel pressure.
Here is a good link for schematics. http://www.austinthirdgen.org/index.php?pid=19
If you not going to use the ECM then you will also have to figure out how to wire up the TCC circuit as well.
Last edited by bestracing; 06-04-2013 at 07:05 AM.
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