de-computerizing

72'CaminoKid · 09-26-2005, 03:10 PM

i've got a 93' jimmy, and was wondering if it's possible to take off all the electronics, sensors and computer and what not, and the engine still work? it's a 4.3L v6, if that helps.... i'm sure it's more of a general question about any computerized motor, than this specific engine... thanks

chevyguy · 09-26-2005, 11:03 PM

Simple, just find a non computer HEi distribuitor, a carb and intake. Install a fuel pressure regulator to get your fuel pressure down around 8 psi for the carb. Very easy and simple.

72'CaminoKid · 09-27-2005, 09:08 AM

how much $$$$ we talkin for that you rekon? and what about the injectors? take them off too?

390FE · 09-27-2005, 09:54 AM

As chevyguy said. You need all new/used (older tech) intake parts and distributor.

Basicly you will take everything off the top of the motor and put on new stuff. When the current intake manifold comes off your injectors will come with it.

Personaly I can't understand why you would do this but to each his own.

72'CaminoKid · 09-27-2005, 11:43 AM

the main reason i want to do this is because i'm pretty good at working with older enignes, and not computers. so that will make it easier for me. and the car body aint in great shape, my brother wrecked it a while back, me and my friends are just gonna use it as for a fun truck, to go mud riddin in a junk, somethin that it wont matter if we tear it up. and i dont wanna have to worry with all the computer stuff everytime we have to work on it.

390FE · 09-27-2005, 01:56 PM

Well it sounds as if you wanna put as little money into this thing as possible than.
I say find a motor that will fit in that is already carbed. Careful because some motors that look carbed are actually throttle body injected (kinda look like a cab but is a step in between carb and EFI - chevyguy should be able to say more on it).

Any way just do a motor swap. You would probably spend the same for the parts you need as you would for a whole motor.

Or. Just drive it as it is and if the CEL comes on go to Autozone and have them read the code for free and pick up the part you need at the same time.
I also beleve you will get more power and better gas milage out of an EFI motor than a carbed motor also. EFI also works a lot better on steep inclines(not that a carb doesn't work).

Also the late 80's and early 90's jimmies, bronco 2's and the similar can be had for cheap money and I also beleve the 43.L in you truck is easy to come by if you do happen to pop it. I've had a couple frineds that have been through more cars than how old they are and if I remember correctly one of them went through like 8-10 cars in 2 years and all of them seen mud, whether a car or truck. And alother friend went through 3 cars in 4 months, they just kept dying and he'd drop another $200 or less on the next, one car he had for maybe 2 days. funny thing is his $50 Taurus lested the longest and had tranny issues when driving over 55mph for a long time.

chevyguy · 09-29-2005, 11:56 AM

Well yes and no. If you can find another motor with carb and non computerized HEI ignition the just removing the intake and carb and distribuitor and installing them on your motorrwould be the easiest way as long as your motor is in good shape.

Truck_Man · 10-30-2005, 07:26 AM

You might be able to find a used intake, carb and distributor in a junk yard for it. I dont blame you for wanting to get rid of the electronics, they can be a real pain, I know from experience. I went through it with an oldsmobile 98 I had.I had that thing in and out of the shop and they never could find the problem. Engine light would come on and it would cut out going down the road. Mechanics i have talked too tell me how much they hate cars and trucks with electronics. They are a total pain to work on and the parts are more expensive.

chevyguy · 10-30-2005, 10:02 AM

Dont swap it out just because it is intimidating system, i recommend keeping it if it is a good working system, Get a book and start reading. Times are changing and old shade tree mechanics are getting phased out if they dont get with the program and learn some basic computer fuel injection work. they are fairly simple and very reliable, and you get better fuel economy. If it is a messed up syatem with electrical gremlins and such then swapping it out isnt that hard. I just did it on my buddies 89 f350 because it had alot of issues and rusted out electronics and emissions. We trashed all the computer and the fool injection (ford system) and went to a holley carb, aluminum intake and a G.M. style HEI distribuitor. Now very reliable and easy to maintain. Cost about 500.00 on a ford , but much cheaper to do on a chevy.

72'CaminoKid · 10-30-2005, 02:47 PM

what about all my sensors, just take them all out? weld the holes where they went?

09-26-2005, 03:10 PM	#1
72'CaminoKid Senior Member Join Date: Jun 2005 Posts: 2,756	de-computerizing i've got a 93' jimmy, and was wondering if it's possible to take off all the electronics, sensors and computer and what not, and the engine still work? it's a 4.3L v6, if that helps.... i'm sure it's more of a general question about any computerized motor, than this specific engine... thanks

09-26-2005, 11:03 PM	#2
chevyguy Senior Member Join Date: Sep 2005 Location: ALABAMA Posts: 3,370	Simple, just find a non computer HEi distribuitor, a carb and intake. Install a fuel pressure regulator to get your fuel pressure down around 8 psi for the carb. Very easy and simple. __________________ Friends dont let friends use body lifts USMC 92-96 USCG 98 to present

09-29-2005, 11:56 AM	#7
chevyguy Senior Member Join Date: Sep 2005 Location: ALABAMA Posts: 3,370	Well yes and no. If you can find another motor with carb and non computerized HEI ignition the just removing the intake and carb and distribuitor and installing them on your motorrwould be the easiest way as long as your motor is in good shape. __________________ Friends dont let friends use body lifts USMC 92-96 USCG 98 to present

10-30-2005, 10:02 AM	#9
chevyguy Senior Member Join Date: Sep 2005 Location: ALABAMA Posts: 3,370	Dont swap it out just because it is intimidating system, i recommend keeping it if it is a good working system, Get a book and start reading. Times are changing and old shade tree mechanics are getting phased out if they dont get with the program and learn some basic computer fuel injection work. they are fairly simple and very reliable, and you get better fuel economy. If it is a messed up syatem with electrical gremlins and such then swapping it out isnt that hard. I just did it on my buddies 89 f350 because it had alot of issues and rusted out electronics and emissions. We trashed all the computer and the fool injection (ford system) and went to a holley carb, aluminum intake and a G.M. style HEI distribuitor. Now very reliable and easy to maintain. Cost about 500.00 on a ford , but much cheaper to do on a chevy. __________________ Friends dont let friends use body lifts USMC 92-96 USCG 98 to present

10-30-2005, 02:47 PM	#10
72'CaminoKid Senior Member Join Date: Jun 2005 Posts: 2,756	what about all my sensors, just take them all out? weld the holes where they went? __________________ 99 suburban xlt 96 silverado 91 wrangler (my baby ) 08 Honday shadow 750 (my mistress)

09-27-2005, 09:08 AM	#3
72'CaminoKid Senior Member Join Date: Jun 2005 Posts: 2,756	how much $$$$ we talkin for that you rekon? and what about the injectors? take them off too?

09-27-2005, 09:54 AM	#4
390FE Senior Member Join Date: Sep 2005 Location: S. NH Posts: 336	As chevyguy said. You need all new/used (older tech) intake parts and distributor. Basicly you will take everything off the top of the motor and put on new stuff. When the current intake manifold comes off your injectors will come with it. Personaly I can't understand why you would do this but to each his own.

09-27-2005, 11:43 AM	#5
72'CaminoKid Senior Member Join Date: Jun 2005 Posts: 2,756	the main reason i want to do this is because i'm pretty good at working with older enignes, and not computers. so that will make it easier for me. and the car body aint in great shape, my brother wrecked it a while back, me and my friends are just gonna use it as for a fun truck, to go mud riddin in a junk, somethin that it wont matter if we tear it up. and i dont wanna have to worry with all the computer stuff everytime we have to work on it.

09-27-2005, 01:56 PM	#6
390FE Senior Member Join Date: Sep 2005 Location: S. NH Posts: 336	Well it sounds as if you wanna put as little money into this thing as possible than. I say find a motor that will fit in that is already carbed. Careful because some motors that look carbed are actually throttle body injected (kinda look like a cab but is a step in between carb and EFI - chevyguy should be able to say more on it). Any way just do a motor swap. You would probably spend the same for the parts you need as you would for a whole motor. Or. Just drive it as it is and if the CEL comes on go to Autozone and have them read the code for free and pick up the part you need at the same time. I also beleve you will get more power and better gas milage out of an EFI motor than a carbed motor also. EFI also works a lot better on steep inclines(not that a carb doesn't work). Also the late 80's and early 90's jimmies, bronco 2's and the similar can be had for cheap money and I also beleve the 43.L in you truck is easy to come by if you do happen to pop it. I've had a couple frineds that have been through more cars than how old they are and if I remember correctly one of them went through like 8-10 cars in 2 years and all of them seen mud, whether a car or truck. And alother friend went through 3 cars in 4 months, they just kept dying and he'd drop another $200 or less on the next, one car he had for maybe 2 days. funny thing is his $50 Taurus lested the longest and had tranny issues when driving over 55mph for a long time.

10-30-2005, 07:26 AM	#8
Truck_Man Senior Member Join Date: Oct 2005 Posts: 213	You might be able to find a used intake, carb and distributor in a junk yard for it. I dont blame you for wanting to get rid of the electronics, they can be a real pain, I know from experience. I went through it with an oldsmobile 98 I had.I had that thing in and out of the shop and they never could find the problem. Engine light would come on and it would cut out going down the road. Mechanics i have talked too tell me how much they hate cars and trucks with electronics. They are a total pain to work on and the parts are more expensive.

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