Oh, you're talking about the dip at the very end.
That's where he lifted the throttle. That is normal.

He's not at WOT until 4500 RPM or so.

 

yes, but the decrease in load from lifting the throttle will richen it?



ah, got it.

 

Yes. There is injector "run-off" on all cars.
You are looking at a fraction of a second at the end of a run.
Where do you think the fireballs come from?

 

Bah! Superchargers make the best fireballs

 

My LTFT is sitting at +14, my STFT is +-1 at idle. As soon as it hit the throttle the LTFT also drops to +-1 and pretty much stays there if I'm just cruising. I still have my Racing Beat intake on which is comming off this weekend. My fuel pump is also needing to be replaced. These combined might be why my LTFT is so far to the +. The AFR's I've seen so far look good. I've driven about 25 miles on this flash. I'm going to take it to work tomorrow and see if it comes down. If not, I'll load the v1.5a file and see what happens.

Cel

Oh, and MM, the wiggle-shove works. I haven't had one comm. error yet.

 

I guess you missed the dyno day videos!

I had enough time to go to Safeway and pick up marshmallows!

 

When you come down here we can compare.

 

Yeah, try one of the "a" series files.
You might want to go to "3a" before you go all the way to "5a", even though you have a lot of LTFT.

Its all in the wrist!

 

Gotcha, thanks!!

 

Dear Jeff,

I've been on 1_0 for the last couple days. About 100km driven. Initially when I flashed the map and watched the STFT as instructed I saw about -4. Over the past couple days the LTFT is 4 and STFT is pretty much 0. Sometimes 1, sometimes -1.

So that's quite a change over a couple days. While I drive i usually see negative numbers but sometimes see positives on light load, up to -5 and 5 respectively. Should I be flashing to 1_2a?

 

No. It will be all over the place under load.
You are in the right spot.

 

hmm, well from what i have read, is that the PCM makes a cycle, and in the cycle the PCM views the engine as if it were standing still (from its fast computing abilities) and is able to make changes based on the O2, TPS, MAF and other sensors and then "schedule" the time of injector pulse width, and the spark. now since the PCM can make those adjustments so fast, that it can detect the throttle back down and in turn cut the fuel based on the map supplied for load, why would it still have that little dip at the throttle back off?



i know what your doing is correct, i am just overthinking, and learning the ways of tuning.

 

Because the MAF continues to show airflow for a small amount of time after the throttle is released and, since the engine is at high RPM and just came off of high load, it continues to fuel for a cycle or two to prevent bucking.

 

root canal wasnt too bad, hope the pain doesnt come back and kill me tonight...

anyways, im about to order through paypal, do i need to email you too MM?

 

Just hit the button!

 

okay just paid through paypal. one thing i forgot to say is that i have the stock intake (which i guess you could assume because i didnt mention any aftermarket intake).

please tell me i made it in this weeks round of shipments?

 

A true customer to smack down $7 with tea bags in his mouth - ouch

 

My MAF and REVi need cleaning BTW - also have not Seafoamed the irons yet. Come on Scott... I want to Seafoam this hunk of iron and get going on power tunes.

 

Yes you did!
They arrive in my hands tomorrow. You'll see it the early part of next week.

Three left in this group if anybody wants one!

 

YES!

thank you very much. do i get a tracking number?

also, once the ap is plugged in, are you supposed to reset the ECU before you flash it? or after? or not at all?

 

Are you still running the RB race midpipe?

 

You'll shoot your eye out kid...

 

Sheesh! Patience!

It comes with instructions. You will get a tracking number when I actually send it!
Its not tomorrow yet!

Relax!

 

Yes!

 

okay okay

its not tomorrow yet?!?? *goes to sleep*