noob needs help

[mgarfias]

The project: 01Z06, mods are vararam CAI, and LG headers. I've got a V1 setup, with an LC-1 wired into the EGR pin on the PCM so I should be able to log it via the OBD2 port. What I'm not sure of is how to setup the calculated PID. In HPT the EGR position can be accessed as PID.2811, can I do the same with EFI or is it named differently?

Next up:

I've read a bit of the big ol Calc VE sticky thread and I think I get it. Using this method with the wide band I should be able to get the fueling pretty close if not right on, no?

How do I go about tackling the ignition tables? That I'm not sure about, especially without a dyno for feedback.

[WeathermanShawn]

Sure you can get your fueling spot on with CALC.VE.

A dyno is best for spark. For the 'street' a zero (0) KR Tune can be accomplished. Keep a 4-6 degrees spread between your High and Low Octane Spark. That way if you encounter KR, Adaptive Spark Control will lower your Spark in an attempt to inhibit KR.

Though a lengthly thread, another forum reader recently wired a wideband via the EGR port. Take a look at that thread, including what calc.pids to utilize..http://forum.efilive.com/showthread.php?15813-Noob-needs-help-with-Roadrunner

[mgarfias]

Ooooh I didn't see that thread, thanks. Also, would you tune using E10 or straight up real gas? I've got the real stuff available here (living in farmville has its advantages), but if I tune for that won't that screw me when I'm traveling and end up on E10?

And got it about the spark: just tune for 0 KR. Maybe I'll contact Perrin (i think thats them) and see if they'll let me rent time on their dynapack.

[WeathermanShawn]

On E10 Tuning and traveling. Probably depends on how much traveling you do. It probably is easier to tune for E10 if you are not sure about your fuel source. If you tuned E10 and run regular gasoline, your Trims will just run ~ -4 % (negative), which is not big deal. Doing it the other way (tuning E00) and filling up with E10 will lead into positive trims...which makes PE Mode fueling more difficult to tune.

Just make sure either way you use EQ in your Tune Tool for PE Mode. That way, no matter the type of fuel..you should be good (~1.16).

Hope that gets you going..

Edit: Re-thinking my answer to you..When you are tuning for the first time, tune for the known fuel type you have. I.E., if it is E00, then use the appropriate stoich AFR in B3601. B3601 can later be adjusted if you determine your fuel type has changed.

[mgarfias]

Stupid question: whats EQ? And B3601, I'm assuming thats a cell for telling the PCM what stoich is, but where the heck do I set it.

Also, pretty sure I have E10 in the car now, I'll run that through it while messing with the logging until I run it out and then I'll refill with a known fuel type.

[mgarfias]

Ok, I'm a dumbass. Should have just opened the tuner and searched for B3601.

[WeathermanShawn]

Hey at least you found it..:grin:.

To set EQ, in the Tune Tool >> Edit >> Commanded Fuel Values>>Default Units (EQ).

If using E10, B3601 will be 14.124. About the only time you will need to use AFR. Use EQ for Tuning.

[joecar]

mgarfias,

In the link Shawn posted, see post #123 for the calc_pids.txt file (wideband AFR read thru EGR port)... this file assumes your LC-1 is reset to stock settings.



. . .
showthread.php?15813-Noob-needs-help-with-Roadrunner (http://forum.efilive.com/showthread.php?15813-Noob-needs-help-with-Roadrunner)

[mgarfias]

mgarfias,

In the link Shawn posted, see post #123 for the calc_pids.txt file (wideband AFR read thru EGR port)... this file assumes your LC-1 is reset to stock settings.

Thanks. In that file it has:



*CLC-00-110
factor 0.5 1.5 .4 "{GM.EQIVRATIO}*{CALC.AFR_EGR}/14.7"


Would I need to change the 14.7 along with B3601 to the 14.2 for E10?

[joecar]

No, do not change it from 14.7...

if set to stock default settings, the LC-1 reports AFR based on stoichiometric AFR 14.7.

If you program the LC-1 stoichiometric AFR to 14.124, then this is the value you divide by.

[joecar]

Now, set your B3601 to 14.124.

[joecar]

i.e. the LC-1 reports AFR by reporting Lambda*StoichAFR... so to obtain Lambda in the scantool, StoichAFR has to be divided out.