Fuel Pressure VSV Delete

Discussion in '80-Series Tech' started by Will Van, Jun 28, 2018.

  1. Will Van

    Will Van

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    I removed and capped every vacuum line except the fuel pressure regulator and brake booster. There is a member on here that sells the “test” bypass plug for EGR sensor, so no CEL codes.
     
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  2. FZJ80inTX

    FZJ80inTX

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    I've never thrown a code, so I imagine the previous owner had that installed.
     
  3. slow95z

    slow95z Always parting 80s GOLD Star

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    i used a paper clip for my egr. i also made some block off plates and removed the lines. i have no check engine light on that i know of but one of my guys is using that truck as a service truck right now. i could call him and ask but he would have said something if something wasnt working right.
     
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  4. Pirate0187

    Pirate0187

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    For those that have removed/capped the vac lines. What did you do with the charcoal canister line that goes to the VSV for EVAP? Or for that matter the charcoal canister itself?
     
  5. Will Van

    Will Van

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    The line that goes from the charcoal canister to the VSV can just go to atmosphere. I used some extra hose and routed mine into the front fenderwell.
     
  6. Pirate0187

    Pirate0187

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    Cool. Was thinking the same thing. Doesn’t stink? I had a lawn mower fuel filter coming from the gas tank venting to atmosphere for a while, the fumes were so bad I put the charcoal canister back in and plugged the hose back into the vsv.
     
  7. Will Van

    Will Van

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    No, I don’t get any fuel smell. I actually deleted my charcoal canister altogether and just run the line straight to the fender-well. No fuel smell with either setup.
     
  8. slow95z

    slow95z Always parting 80s GOLD Star

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    If you want me message me I can give you my cell number and we can video chat so you can see pics of everything I did.
     
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  9. LandCruiserPhil

    LandCruiserPhil Peter Pan Syndrome Supporting Vendor

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  10. Pirate0187

    Pirate0187

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    I’m in the process of doing a full delete on a 95 with OBD II as we speak. Should be done later today. Will report back with results after a few weeks of driving.
     
  11. LandCruiserPhil

    LandCruiserPhil Peter Pan Syndrome Supporting Vendor

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    Perfect! Thanks for sharing :clap:
     
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  12. notathomie

    notathomie

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    Definitely read page EG 299 in the FSM before doing a delete.

    I am battling a hot shut off problem with symptoms very similar to vapor lock.

    The hot shut offs usually occur after a climb. (Engine is hot from the climb and gas vaporizes at a lower temp at higher altitude.)

    According to page EG 299, the fuel pressure regulator and the VSV work in unison to prevent vapor lock.
     
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  13. ajax1

    ajax1

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    You need to run a vacuum line to the fuel pressure regulator still
     
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