Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

tbi to carb swap

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Old Aug 19, 2002 | 07:46 PM
  #1  
89firechicken's Avatar
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Joined: Aug 2002
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From: Bellevue, NE
tbi to carb swap

if i swap to a carb from a t.b.i can i get rid of my ecm or should it stay?
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Old Aug 20, 2002 | 03:50 PM
  #2  
Tim Burgess's Avatar
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Joined: Jul 1999
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From: Tucson, AZ, USA
Car: '92 Z28; Dk Teal; Her Pkg
Engine: 305
Transmission: Richmond 6 Spd
Axle/Gears: Moser 9", Detroit Locker, 3.70
The ECM can go, but the EGR, two exhaust air injection solenoids, and TCC lockup (auto trans only) will not function without the ECM. Also, you would need to power the fuel pump while cranking. If you have an '89, as your name indicates, the speedo will continue to function without the ECM, as it's cable driven.
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Old Aug 20, 2002 | 11:26 PM
  #3  
JRupert99's Avatar
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Joined: Mar 2002
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From: Ohio
hey fella, i just did the exact same thing with my 305 tbi.. i converted to a edelbrock 600cfm carb. I left my ecm in actually.. the fuel pump would not run with the ecm in it. All my gauges ran fine. Also we had to run a different distributor, one with a coil pack on top of the cap. We got this at a junkyard. my friend had to wire it up different.. but as far as everything it wasnt that hard. What year is your car? If you havent started remember if you have the 87 and up heads with the centerbolts you will not find an intake for a carb that will match up to it.. as far as i have found.. I had to go buy an aftermarket, I bought an edelbrock performer and it was 151 plus tax thru jegs. If you have any more questions let me know..
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