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Good stuff, I'll give it a try. Thanks for the insight!

Yup, makes perfect sense. So assume you add the 10%, but get a return of 15%, do you reduce the injector offset by 5%? How do you correct the injector offset? Also, do you just create a custom...

I know I'm bringing this back from the dead, but is this globally true? If I'm tuning for E47, do I want to keep the MAF/Hz curve stock, adjust the injector offset, then just tune the MAF base table?

Thanks a lot, I'll give it a look over! It's 3 degrees here in Wisconsin this morning and the car started just fine. I did go through and recalibrate the injector constant/MAF as suggested above. Not...

It?s an fbo car with a Z54 turbo FYI. As far as boost spikes go, ever since I went from the Treadstone CAI to the K&N sri the turbo wants to spool at low rpm/low load lol. I?ve been trying to calm it...

Yup I?m running e47. Some of the settings were copy/pasted from a e47 tune I paid for hence some of the weird things you are seeing. I wanted to start from scratch and do the tune myself only copying...

Another great idea! I?ve spent so much time tinkering with everything else, it might be a good idea to step back and start with the simplest things. I will definitely give it a try. It?s like -7F...

I?ve tried about everything, including parked cams etc. I haven?t retuned my MAF vs freq table for a long time, I?ve just been using the MAF base for corrections. I?ll dial in the MAF vs freq table...

Guys/gals,

I've been trying to get my car to start up properly in very cold weather with cat warmup delete. I have been thusfar unsuccessful. Attached is my current tune with cat warmup enabled...

I don't see anything that raises any alarms. One suggestion I would make is, your DAL settings for high load/high RPM are way too high and you wastegate duty cycle is way low. Instead, set the DAL...

A couple tips since I have the same turbo..

1. It does not spool as fast as the K04 so don't try to make it spool that fast. Trying to build boost under 3300rpm or so is difficult in my...

If i had to venture a guess, it will probably be running pretty rich until the injector settings are correct and the tune is dialed in. Just stay out of boost and you'll probably be fine.

The simple fix here I think is just to scale the injector constant for the larger injectors. There may be more to it, but I think this is the most important part.

Below are the injector settings...

Causes of P2227 code:

Faulty MAF (mass air flow) sensor
Faulty BARO sensor
Faulty ECM
Short or open condition in the BARO sensor circuit
Sticking idle air control valve
Clogged intake inlet-...

This ECU is new to me, but looking at the MAP sensor linear and offset settings, they look awful high to me. Are those the correct settings?

Anyone have a working histogram for DAL Vs. Actual Airload? I haven't found a parameter for torque that works properly.

Care to share this bit of wizardry with the rest of the class? I've searched around the software but can't find anything relating to editing the actual values for X and Y.


Edit: I figured it...

How? So on the Main Spark table I can edit the table to change the 600 to an 800? Or is it referring to a custom histogram?

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What exactly does the side note mean? I thought the axis' weren't editable?

Well, I gave your suggestion a try and I've seen some strange results. I've attached the tune as it sits, and a log of startup and idle. In the log you can see it hunting, I'm not sure how to fix...

Yes, however, it has done this with regular gas or E85. The real problem I'm trying to fix is when it gets cold and I start the car in the morning, it starts up just fine but it wants to idle down...

Never mind, it's still hunting. It seems to start fine, but gets worse as it warms up. As it's warming and idling down, it hits about 1000rpm then that's when it starts hunting the worst. I just...

I gave this a try, and there is certainly a marked improvement! I have the timing set for 20 degrees in the main spark tables in the idle area, and OS set for about 42 or 43 and I'm seeing about...

Thanks a lot for the input. Just to clarify, The main warm and cold should be the same for the base angle tables AND the catalyst heating tables? Essentially, all the intake main and warm tables...

So another update. I'm seriously about to start this car on fire. I cannot for the life of me get it to quit surging and hunting after I get the idle up to around 20 degrees. It'll start fine, but...