Author Topic: 318 TBI to FI Tech  (Read 2606 times)

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Offline 89on35s

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318 TBI to FI Tech
« on: October 18, 2017, 12:21:43 pm »
I'm thinking about switching my 318 TBI motor in my 89 truck to an FI Tech unit. Can I make my AC and Cruise control work (controlled by stock computer) without actually using the TBI? If no, I guess I would need to use AC and Cruise control parts from a pre TBI truck but would rather use what's there.

Cley
89' Ram 1/2 ton, 38" rubber, 318 w cam, headers, k+n, 727 w shift kit, NP241 t case, D-60s front and back with 4.10 gears.
2003 Hemi Quad cab SLT 4x4 sport
74 Duster 360, 727, 3.21 sure grip
2010 Ram 2500 laramie with 6.7l Cummins
Die Hard Red Neck

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    Offline DODGEBOYS

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    Re: 318 TBI to FI Tech
    « Reply #1 on: October 19, 2017, 08:36:58 am »
    you would need 87 and older parts or a 10 year old whiz kid you write you a program on a stand alone PCM
    put your truck info HERE
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    Offline Elwenil

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    Re: 318 TBI to FI Tech
    « Reply #2 on: October 19, 2017, 10:24:05 am »
    The A/C pretty much runs on it's own.  About the only thing that might need to be tied into the computer is something to disengage the A/C clutch at full throttle.  Otherwise the system doesn't really need a computer to run it so the older setup would work fine.  Cruise control is going to be a whole other deal altogether and will require a lot of input to the computer and out of it.
    L.Clemons

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    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
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    Offline 89on35s

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    Re: 318 TBI to FI Tech
    « Reply #3 on: October 19, 2017, 10:30:35 am »
    OK, so I can bypass the computer regarding the WOT AC clutch kick out (can't be that hard) and use either an 87 and older cruise control system or an aftermarket system to cover that off. Thanks so much for the help.

    Cley
    89' Ram 1/2 ton, 38" rubber, 318 w cam, headers, k+n, 727 w shift kit, NP241 t case, D-60s front and back with 4.10 gears.
    2003 Hemi Quad cab SLT 4x4 sport
    74 Duster 360, 727, 3.21 sure grip
    2010 Ram 2500 laramie with 6.7l Cummins
    Die Hard Red Neck

    Offline dodge82273

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    Re: 318 TBI to FI Tech
    « Reply #4 on: October 19, 2017, 11:21:53 am »
    if your o2 sensor , map sensor ,2 wire temp sensor will now go to the fitech unit , your dash lights , check engine , will be "ON" will that still pass any inspections required in your location.... 
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

    Offline Elwenil

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    Re: 318 TBI to FI Tech
    « Reply #5 on: October 19, 2017, 01:15:55 pm »
    If integrated correctly, the dash lights should be controlled by the new computer since the old one would be eliminated.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline dodge82273

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    Re: 318 TBI to FI Tech
    « Reply #6 on: October 19, 2017, 01:58:57 pm »
    intergration ,  yeah I have heard of that . must take some figgerin to tie into the dash lights , I guess the aftermarket parts come with 19xx year specific dodge instructions though .  kewl .
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

    Offline Elwenil

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    Re: 318 TBI to FI Tech
    « Reply #7 on: October 19, 2017, 02:50:54 pm »
    No, it's just that all of them use some sort of output for a CEL, and it's not a big deal to wire it to the one already in the dash.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline 89on35s

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    Re: 318 TBI to FI Tech
    « Reply #8 on: October 19, 2017, 03:43:49 pm »
    Inspection is no issue due to year of vehicle here. When you say dash lights, do you mean "Check Engine" light or gauge illumination lights? The first doesn't concern me and the second will be easy to rewire.

    Cley
    89' Ram 1/2 ton, 38" rubber, 318 w cam, headers, k+n, 727 w shift kit, NP241 t case, D-60s front and back with 4.10 gears.
    2003 Hemi Quad cab SLT 4x4 sport
    74 Duster 360, 727, 3.21 sure grip
    2010 Ram 2500 laramie with 6.7l Cummins
    Die Hard Red Neck

    Offline dodge82273

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    Re: 318 TBI to FI Tech
    « Reply #9 on: October 19, 2017, 11:37:17 pm »
    check engine / remove bulbs......
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

    Offline Elwenil

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    Re: 318 TBI to FI Tech
    « Reply #10 on: October 20, 2017, 07:07:52 am »
    The CEL is going to be important to diagnose problems in the future.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline dodge82273

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    Re: 318 TBI to FI Tech
    « Reply #11 on: October 20, 2017, 08:55:11 am »
    hummm yer right , I guess he has to tee the senders to BOTH pcm's/computers , but then which one will dominate and control fuel ...   or does the aftermarket one have a "port" that can give the info to say a simple laptop ?
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

    Offline Elwenil

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    Re: 318 TBI to FI Tech
    « Reply #12 on: October 20, 2017, 09:12:13 am »
    Why would he keep the old computer?  It wouldn't be used for anything once the new one is controlling the fuel injection and ignition.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline dodge82273

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    Re: 318 TBI to FI Tech
    « Reply #13 on: October 21, 2017, 03:05:17 am »
    does it have the o.d. button on dash ? or a lock up converter ? will it use any kind of ASD ?

     just saying what seems like you only need to change 1 part ( the throttle body ) is not quite that simple . The aftermarket body / controller  system will have a diagnostic system , either built in or a laptop read , so old fashion blinking lights aren't needed , BUT with a electric fuel pump system of any kind , some sort of asd or oil pressure switch shut off should be used for safety reasons , does the new tbi system or intended ignition system incorporate one ? things to consider .. and couldn't the old computer still run the cruise ?
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

    Offline Elwenil

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    Re: 318 TBI to FI Tech
    « Reply #14 on: October 21, 2017, 08:59:41 am »
    Those features are usually pretty standard and even if a laptop is used to interface with the computer a CEL is still necessary to notify you that there is a problem in the first place.
    L.Clemons

    1988 Ramcharger AW450-318EFI-NP435 4 speed-NP205 Transfer Case-Dana 60s-Braden Wormdrive Front Winch

    2018 Ram 2500HD Crew Cab 4WD 5.7L

    I am the unknown Will,
    The Anger that threatens glory and ruin:
    Lord of Storms am I,
    in heaven high and caverns deep.
    I am the Father of the War,
    Odin for you, Wotan for him,
    Wayfarer, Wanderer, beggar, king,
    numen, genius, strength and ring.

    Offline dodge82273

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    Re: 318 TBI to FI Tech
    « Reply #15 on: October 22, 2017, 12:18:51 am »
    yer right
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

    Offline 89on35s

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    Re: 318 TBI to FI Tech
    « Reply #16 on: October 23, 2017, 11:58:28 am »
    No OD or LU in the trans to worry about. The FI Tech controls the fuel pump and timing. Ideally the factory computer will go away completely. I'm not worried about getting it to run and drive. I am more worried about all the peripherals that may be controlled through the factory computer. The truck has AC and cruise control as it's only options, and I'd like to keep them.

    Cley
    89' Ram 1/2 ton, 38" rubber, 318 w cam, headers, k+n, 727 w shift kit, NP241 t case, D-60s front and back with 4.10 gears.
    2003 Hemi Quad cab SLT 4x4 sport
    74 Duster 360, 727, 3.21 sure grip
    2010 Ram 2500 laramie with 6.7l Cummins
    Die Hard Red Neck

    Offline dodge82273

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    Re: 318 TBI to FI Tech
    « Reply #17 on: October 23, 2017, 02:50:47 pm »
    some use the computer for a voltage regulator , look on firewall for one , if not you'll need to install one there .
    78 to 93 parts trucks
    91 w250 318 518 44/60 single 9 foot driveway plow locked
    87w150 44/corp727 kandy w/ ghost bats/summer
    86-D/W100 44/corp/318mag/carb/4500/aka shit box/winter
    93w150short/44/corp/360/le/mag "caddie"
    93w250LB51844/60posi 318"New Truck"
    93w350 6 tire CC 60 c/a flat bed dump

    Offline GusChiggins86

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    Re: 318 TBI to FI Tech
    « Reply #18 on: May 21, 2020, 09:53:24 am »
    89on35s,

    Did you ever get the cruise control issue resolved?
    '89 Ramcharger 318/4x4/727/ 3.23 GR
    '09 Ram 1500 5.7 Hemi 4X4

    Offline RCCADMAN

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    Re: 318 TBI to FI Tech
    « Reply #19 on: May 21, 2020, 05:50:30 pm »
     :o

    This is why I stick with the tin grills. No computers!
    74 RC SE 4X4
    77 RC HD 2WD
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    99 Durango SLT 360
    93 F350 Dually Centurian 460 4X4 Crew

    Offline modelcitizen

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    Re: 318 TBI to FI Tech
    « Reply #20 on: May 21, 2020, 09:16:37 pm »
    89on35s,do your homework before you settle on Fitech FI. I originally had FItech in mind but their components are cheesy and they have horrible customer service. I changed my mind and have settled on Holley Sniper system. They have some problems but have good customer service reputation.

     

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