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  1. Replies
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    try using the datalogger to figure out how its...

    try using the datalogger to figure out how its tuned and recreate it
  2. Replies
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    The newer ECU uses the optimum engine torque...

    The newer ECU uses the optimum engine torque table to reference cruise control on those ecu's I don't recommend tuning the optimum engine torque.

    If you have the older ECU, you can just max out...
  3. Diesel Fueling>Main Injection Limit There is a...

    Diesel Fueling>Main Injection Limit

    There is a base limit, gear-based limit, and MAF-based Limit.

    I would raise the base and gear limit higher than where I want it to be, so probably 100mm3 and...
  4. raise the smoke limit, boost, rail pressure, and...

    raise the smoke limit, boost, rail pressure, and 1-2 degree timing
  5. Replies
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    6,676

    yeah this is why i left it as a last resort, some...

    yeah this is why i left it as a last resort, some ecu's uses the optimum torque for reference to set cruising speed.
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    2,005

    we set the PE first lets say 1.333 and then we...

    we set the PE first lets say 1.333 and then we tune the maf to be within 2% 10.78-11.22.

    with the cam timing i didnt spend too much time trying to see if there is a better map than trd as the car...
  7. most of my tuning experience is on the 3ur-fe but...

    most of my tuning experience is on the 3ur-fe but its similar, the 3ur-fe has tight piston ring i noticed that it doesnt like to run lean N/A under 1.176 it starts to knock and F/I under 1.333 it...
  8. Replies
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    try optimum engine torque table it should do what...

    try optimum engine torque table it should do what you are looking for but its based on engine load.

    you could also try torque based limit low/high load.

    the stock ecu traction control strategy...
  9. Replies
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    Hi, 1) we tune the MAF instead of VE here, you...

    Hi,

    1) we tune the MAF instead of VE here, you can use the airflow vs voltage or MAF correction base which is alternative to VE. the temperature control is for cat protection we disable it as its...
  10. Replies
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    6,676

    Hi, remove the throttle limiters, tune your...

    Hi,

    remove the throttle limiters, tune your maf and pe, once you get it on the dyno tune your timing, make sure you are not knocking, this is the main things you want to spend your time on, if the...
  11. Hi, i found this thread and im interested in...

    Hi,

    i found this thread and im interested in knowing why those c6 corvettes have different knock sensor threshold for the same engine, i have attached the tunes for reference and it shows that...
  12. Replies
    207
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    136,977

    the newer ecus uses the torque model to set the...

    the newer ecus uses the torque model to set the speed, if you raise it, it will get stuck on full throttle until you disable the cruise control.
    another issue is the throttle hang on deceleration. ...
  13. Replies
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    18,760

    we ran a jump wire between pin 5 and pin 3 to...

    we ran a jump wire between pin 5 and pin 3 to bypass the relay, which is a temporary solution.

    you have to ground pin 1 not pin 3 as its the one from the ecu or do as the above both give the same...
  14. Replies
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    18,760

    yes its the ground wire, when we tried it we used...

    yes its the ground wire, when we tried it we used jumper wire to test if it would work and it did, keep it mind the efi No2 fuse is constant 12v not ignition so you might need to find different power...
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    18,760

    interesting, we have tested it on @korbiams...

    interesting, we have tested it on @korbiams tundra and we had no issue.

    if you are using external regulator you should make sure F/PMP vsv is always on with ignition this could be a reason why its...
  16. Replies
    207
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    136,977

    the tune is actually better than i thought, i...

    the tune is actually better than i thought, i have made some changes just fyi your cruise control might not work properly if you have the newer ecu,
  17. Replies
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    18,760

    the calculated ethanol will still be active when...

    the calculated ethanol will still be active when it sees positive fuel trim but i believe it shouldnt effect the tune as you have disabled its correction methods.
  18. Replies
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    136,977

    your tune need alot of work start by raising your...

    your tune need alot of work start by raising your torque model and remove throttle limit if any, change your pe 1.333 is really good starting point especially if you are on stock piston and rods, you...
  19. Replies
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    136,977

    dont bother calculating the inj const as the maf...

    dont bother calculating the inj const as the maf scale is limited to 512g/s in some ecus after 450g/s the ecu doesnt compensate, you are going to end up running lean anyway, start by leaving your maf...
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    ok at least you know what is the issue, there is...

    ok at least you know what is the issue, there is no need to change your knock sensor or sensitivity at this point, just check your engine/transmision mounts and headers/exhaust for movement once you...
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    106185 i have made few changes to the pe to...

    106185

    i have made few changes to the pe to make it kick in quicker, you will need to work more on your fueling you are 5-10% off.

    and i believe you have a false knock as you are maxing your...
  22. Replies
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    136,977

    in park minimum injector pulse width has bigger...

    in park minimum injector pulse width has bigger effect on afr as long as you dont have a mechanical issue like a leak in fuel or air (vacuum).

    in drive or reverse adjust your maf until you get 0% ...
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    106106 the reason its getting worse is that im...

    106106

    the reason its getting worse is that im removing timing and airflow, i removed some timing to see if vacuum would drop, 26 degree at idle is too much and you are not giving the underspeed...
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    STIT usually learn quick so it doesnt matter...

    STIT usually learn quick so it doesnt matter much, but to be safe disconnect the battery before you try it.
  25. Replies
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    3,763

    106086 it will get worse before it gets...

    106086

    it will get worse before it gets better, right now im removing some idle air flow to get the stit and ltit close to zero, as right now you are fighting the pid and its causing you to stall,...
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