Installed AP. Used the base calibration map from MM. Started bogging down at red lights and when I had my car in reverse. Idle is fine though. Idles at 5/g, 1.2 volts on the MAF. So I loaded the base map that comes with AP. SAME THING.. I've reset the PCM and started all over. I get the same thing. I didnt do this before AP. When I unistalled ap completely and it ran just fine. Ill go do a datalog in a sec to see if ya'll see any trash in it.

 

what were your fuel trims?

obligatory question: you sure you downloaded / installed the right map? (ie; you don't somehow have a CA RX-8 or the M.Y. matches what the AP says?)

 

yep. and to be sure I reverted to the stock style map that came with my ap. I dont have a CA rx8., and my model year matches it. Cobb send me the file for the 2006 A/T as my base map.

LTFT: -0.16

STFT: +0.62

 

Wait... your'e runing a map from Cobb or you downloaded the base map from MM's site?

This is why I'm asking which base map you're running.
The two posts dont match.

 

I was 1st using the MM Base. Then I switched to the Base Cobb map(came with my AP, i bought my ap directly from cobb).

 

and they both caused problems?
do you have an aftermarket intake?

 

Are you running an aftermarket intake?

 

ok ive attached a file. I have the data log and the actual map if you want to open it and see.

On line 1655, thats when i put the car in reverse with the brake held down. rpms drop drastically and sometimes bogs all the way down.

also my longterm fuel trims were WAYYYY off this time.

 

nope, stock intake with a catless midpipe.. but i dont have my VFAD in there though. All vacuums are sealed.

and yes both maps caused the problems

 

You said you calibrated the MAF? That didn't solve the fuel trim issue?

 

i did on my last log. had me close to 0 on both my fuel trims. all of a sudden the bogging down came back

 

By bogging down do you mean your car is in limp mode?

How high can you get it to rev in neutral with the Cobb program? If it's only 4500 rpm or so the PCM is going into limp mode.

 

no not limp mode. it will let me rev all the way to 9300 rpm. It just stalls sometimes at stopsigns and when i put the car in reverse. But just recently my LTFT was -2 and my STFT is +1.0. I havent had the issue today. So maybe its learning it way through it.

a couple days ago i was seeing LTFT: -6.0.. so it looks as if its getting better

 

It sounds like it is just building up it's fuel trim memory, slowly.

Do you change base maps frequently? It would take a few drive cycles to memorize the right percentages, with each map change putting you back at 'square one'.

 

yeah i changed maps about 3 times so you're probably right. I just took another drive 15 mintues ago and its driving better than ever.

 

it takes at least 5 drive cycles for the idle to settle down... really it does!

beers

 

Uh, yeah.

 

i downloaded your map from this forum(linked to your website). I will probably datalog here in about 2-3 weeks when i switch back to your base so i can purchase calibrations