1984 Chevy Celebrity Carb to EFI Swap
CHEVROLET
I have a 1984 chevy celebrity which has a 2.8 v-6 with a carburetor and I want to know is it possible to change the gas tank, fuel lines, and wiring harness to make it fuel injected like the later models which came with the fuel injected 2.8 and 3.1. I understand this is a lot of work but is it possible because I have a 1989 multi port injected 2.8 which came out a later model celebrity which I would love to use in my 1984 model
Aug 7, 2006 at 4:01 AM
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[quote:38dbf38781="rts3725"]I have a 1984 chevy celebrity which has a 2.8 v-6 with a carburetor and I want to know is it possible to change the gas tank, fuel lines, and wiring harness to make it fuel injected like the later models which came with the fuel injected 2.8 and 3.1. I understand this is a lot of work but is it possible because I have a 1989 multi port injected 2.8 which came out a later model celebrity which I would love to use in my 1984 model[/quote:38dbf38781]
I am affraid you will run into some major problems with this sort of a modification. I would see you needed to replace the intake manifold to work with a throttle body instead of carb, which means all of your vacuum hoses will need to be rerouted and or modifided to drive their respective systems. I see no input sensors to drive a fuel injection system, much less the computer to control it all. Also your changing harness may match up to some of the new items on the engine, but will they match up with the other items that are not in the fuel injection system. We havent even touched on the balance betwen the transmission and the engine needing to be in sync with the computers for timing, controls, and messages.
Could you get it to run, probably not. But if some way you did, you would have so many problems that it wouldnt be worth it.
I am affraid you will run into some major problems with this sort of a modification. I would see you needed to replace the intake manifold to work with a throttle body instead of carb, which means all of your vacuum hoses will need to be rerouted and or modifided to drive their respective systems. I see no input sensors to drive a fuel injection system, much less the computer to control it all. Also your changing harness may match up to some of the new items on the engine, but will they match up with the other items that are not in the fuel injection system. We havent even touched on the balance betwen the transmission and the engine needing to be in sync with the computers for timing, controls, and messages.
Could you get it to run, probably not. But if some way you did, you would have so many problems that it wouldnt be worth it.
Aug 11, 2006 at 1:57 PM
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Suggested Repair
Do not convert the 1984 carbureted 2.8 to the 1989 multi-port injection setup. The car lacks the matching intake, sensors, computer, compatible harness, and transmission control integration, so the swap is unlikely to run reliably and is not worth the work.
Conversation Summary
The owner of a 1984 Chevrolet Celebrity with a carbureted 2.8 V6 asked whether the gas tank, fuel lines, and wiring from a 1989 multi-port injected 2.8 Celebrity could convert it to fuel injection. The expert advised against it, citing the need for a different intake and vacuum routing plus missing sensors, a computer, harness compatibility issues, and engine-transmission computer synchronization. The expert said it probably would not run and would not be worth the problems if it did.
