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Tacoma ECU Tuning for 4.0L

Discussion in '2nd Gen. Tacomas (2005-2015)' started by OVTune, Jun 14, 2017.

Page 19 of 228
  1. Sep 15, 2017 at 2:05 PM
    #361
    OVTune

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    OVTune [OP] Well-Known Member

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    OVTune
    you mean so that you can tune multiple trucks?
     
    OVTune, Sep 15, 2017
    #361
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  2. Sep 15, 2017 at 3:07 PM
    #362
    Lucario Runner

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    Lucario Runner Resident Truck/SUV racer

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    Correct
     
    Lucario Runner, Sep 15, 2017
    #362
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  3. Sep 15, 2017 at 3:35 PM
    #363
    Lord Helmet

    #363
    Lord Helmet Prepare To Attack

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    Awaiting more info...
     
    Lord Helmet, Sep 15, 2017
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  4. Sep 15, 2017 at 4:20 PM
    #364
    Sterling_vH111

    #364
    Sterling_vH111 Go do something real instead.

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    This is exciting... I'm game for a preset tuner!
     
    Sterling_vH111, Sep 15, 2017
    #364
  5. Sep 15, 2017 at 4:20 PM
    #365
    Justinlhc

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    Justinlhc Not looking for a relationship

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    I'd say the "majority" don't have the knowledge or equipment to self tune(effectively).

    I'm interested, but being N/A I'd need to see specific options since I have very little to gain. If I could disable the injector cut-off when coasting downhill I'd be all over it. :bananadance:
     
    Justinlhc, Sep 15, 2017
    #365
  6. Sep 15, 2017 at 4:21 PM
    #366
    Lord Helmet

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    Anything for a 5th gen 4Runner? :D
     
    Lord Helmet, Sep 15, 2017
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  7. Sep 15, 2017 at 4:22 PM
    #367
    Torspd

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    Torspd Tor-nication

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    Why would you want to do that?
     
    Torspd, Sep 15, 2017
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  8. Sep 15, 2017 at 4:25 PM
    #368
    Justinlhc

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    Justinlhc Not looking for a relationship

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    It's annoying as hell to have to step on the gas when coasting downhill in order to keep speed. It also makes no sense to me to prevent the vehicle from maintaining speed when traveling downhill. It's like the brakes are applied when going downhill. It's a common complaint on the Tacoma. Is this the first you've heard about it?
     
    Justinlhc, Sep 15, 2017
    #368
  9. Sep 15, 2017 at 5:09 PM
    #369
    Torspd

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    Torspd Tor-nication

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    Is yours an auto?

    It is a normal tuning strategy to have a fuel cut for "X" amount of time after the throttle pedal has been lifted. Decel Fuel Cut. Then it should go back to closed loop fueling.
     
    Torspd, Sep 15, 2017
    #369
  10. Sep 15, 2017 at 5:19 PM
    #370
    Justinlhc

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    Justinlhc Not looking for a relationship

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    Yes, auto.

    It seems counterproductive to make me press the gas pedal to maintain speed when coasting downhill. I know I'm not alone because I've read several complaints about it over the years.
     
    Justinlhc, Sep 15, 2017
    #370
  11. Sep 15, 2017 at 5:43 PM
    #371
    dipstiktaco

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    dipstiktaco Well-Known Member

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    Ok every vehicle with obd2 does this and it's for good reasons.
    All you're going to do is burn more fuel. The amount of engine braking when your throttle is closed isn't going to change if you turn off the decel fuel cut. What you are feeling is aerodynamic and mechanical drag from the truck itself. My buddies 2015 f150 has way more coasting decel than my Tacoma does and I'm on larger tires. If you want to maintain speed going downhill then guess What, just like on level ground you have to apply throttle. It's physics.
     
    dipstiktaco, Sep 15, 2017
    #371
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  12. Sep 15, 2017 at 5:43 PM
    #372
    Justinlhc

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    Justinlhc Not looking for a relationship

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    Every vehicle with obd2 does this? o_O
     
    Justinlhc, Sep 15, 2017
    #372
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  13. Sep 15, 2017 at 5:46 PM
    #373
    dipstiktaco

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    dipstiktaco Well-Known Member

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    Yes it's called decel fuel cut. Shuts off the injectors and uses the transmission too keep the engine turning to save fuel. Guys who switch it off are the ricers who want to spit flames when they let off lol
     
    dipstiktaco, Sep 15, 2017
    #373
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  14. Sep 15, 2017 at 5:46 PM
    #374
    dipstiktaco

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    dipstiktaco Well-Known Member

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    Even my 1994 ford ranger did it.
     
    dipstiktaco, Sep 15, 2017
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  15. Sep 15, 2017 at 5:48 PM
    #375
    Justinlhc

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    Justinlhc Not looking for a relationship

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    No, not all OBD2 ecm's use this feature and no, I am not trying to shoot flames out of my exhaust. Wtf.
     
    Justinlhc, Sep 15, 2017
    #375
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  16. Sep 15, 2017 at 5:49 PM
    #376
    dipstiktaco

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    dipstiktaco Well-Known Member

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    Name me ones that don't please.

     
    dipstiktaco, Sep 15, 2017
    #376
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  17. Sep 15, 2017 at 5:50 PM
    #377
    Justinlhc

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    Justinlhc Not looking for a relationship

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    Are you being serious? o_O
     
    Justinlhc, Sep 15, 2017
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  18. Sep 15, 2017 at 5:50 PM
    #378
    TRDProBuddy

    #378
    TRDProBuddy Well-Known Member

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    I would want hand held unit with pre-set Tunes please
     
    TRDProBuddy, Sep 15, 2017
    #378
  19. Sep 15, 2017 at 5:51 PM
    #379
    dipstiktaco

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    dipstiktaco Well-Known Member

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    100% I've worked on many different makes and I've never come across an obd2 vehicle that didn't use decel fuel cut.


    0
     
    dipstiktaco, Sep 15, 2017
    #379
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  20. Sep 15, 2017 at 5:53 PM
    #380
    dipstiktaco

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    dipstiktaco Well-Known Member

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    Hell my 2012 brz with a full motec standalone has decel fuel cut
     
    dipstiktaco, Sep 15, 2017
    #380
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Page 19 of 228

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