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Old 03-07-2006, 04:48 PM   #1
daprez
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Default the n00b questions will keep coming!

I have done a good amount of research on the topic of EM, but I have had a hard time finding answers to a few extremely newbish questions and I thought I'd ask you guys before hitting up Cobb directly. I apologize in advance for eyestrain from forceful backwards rolling!

So - true or false - the AP plugs into your OBDII port and it stores up to 10 maps. And these maps can be any of the following:

- staple maps downloaded from Cobb or presumeably other places
- maps you make yourself with StreetTuner
- maps you hire a tuner (or make yourself) to create with ProTune, which allows a finer granularity of parameters, to match your specific car?

Next dumb question: must you leave the AP plugged into the OBDII port for the map to work? Or do you flash the ECU, then pull the AP out and stick it in your glovebox or something?

The big newbie question: I am aware that the ECU in my WRX is really sophisticated, and makes complex decisions based on a lot of data. As a newbie to the concept of engine management, I was really surprised, for example, to learn that my ECU will make adjustments based on altitude as well as ambient temperature, and has different sequences for cold start after sitting for a few hours, and hot re-start after, say, a stall. Do the AP maps make use of all of this stuff?

Thanks for reading!
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Old 03-07-2006, 05:26 PM   #2
Scoobie Noobie
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True. the AP stores maps and they can be any AP compatible maps.
No you don't leave it plugged in after flashing. I keep mine in my closet at home.
As I understand it, the AP only remaps certain ECU parameters with the standard maps. Most of the mundane functionality is still handled by the stock programming.
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Old 03-12-2006, 01:28 AM   #3
WolfInSheepsCLothing
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yup, your car's ECU will make adjustments depending on temp and altitude, but mainly how you drive it. if you reflash it, then drive like crazy, the timing will be increased to compliment the demand for it...

you don't need to have the AP plugged in while driving, unless you want to change the realtime map, or monitor boost..
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Old 03-13-2006, 07:03 PM   #4
ihavebettersound
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And if you're gonna try to monitor boost, ahve someone else in the car!! It's probably not safe to be checking live boost readings and driving at the same time!!!!
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Old 03-14-2006, 02:19 PM   #5
nhluhr
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Quote:
Originally Posted by daprez
So - true or false - the AP plugs into your OBDII port and it stores up to 10 maps. And these maps can be any of the following:

- staple maps downloaded from Cobb or presumeably other places
- maps you make yourself with StreetTuner
- maps you hire a tuner (or make yourself) to create with ProTune, which allows a finer granularity of parameters, to match your specific car?
False. You cannot use street tuner maps on a regular AP. You can use streettuner maps on a StreetTuner-Converted AP, but if your AP is converted to a ST-AP, you cannot use normal AP maps that you'd download from cobb's site.
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Old 03-14-2006, 06:20 PM   #6
mcowger
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Quote:
Originally Posted by daprez
Do the AP maps make use of all of this stuff?

Thanks for reading!

Yes and no. They make use of it to the extent that their are only changing parameters, not the whole code. No the the extent that Cobb's maps are not usually actually changing any of the coldstart parameters, for example, because they have no need to.
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Old 03-14-2006, 08:07 PM   #7
DTECH-WRX
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Quote:
Originally Posted by nhluhr
False. You cannot use street tuner maps on a regular AP. You can use streettuner maps on a StreetTuner-Converted AP, but if your AP is converted to a ST-AP, you cannot use normal AP maps that you'd download from cobb's site.
Another good Newbie question to answer might be does the Street Tuner-AP have any starting/base maps to work with or do you have to start off tuning a map from scratch?

Also does Protuner truely have finer parameter "adjustments" than Street Tuner?
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Old 03-20-2006, 10:58 PM   #8
gqchynaboy
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Lets say I got a protune.

Here is a n00b question, if i needed to unplug the battery will I need to reload the protune map again? Also, is it easy to accidently delete/remove the protune map from the AP?
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Old 03-21-2006, 12:51 AM   #9
mcowger
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Not if you set the map as your basemap, no.

Easy? No. Possible? Yes.
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Old 03-21-2006, 03:16 AM   #10
nhluhr
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Quote:
Originally Posted by DTECH-WRX
Another good Newbie question to answer might be does the Street Tuner-AP have any starting/base maps to work with or do you have to start off tuning a map from scratch?

Also does Protuner truely have finer parameter "adjustments" than Street Tuner?
Cobb provides a few maps to start with but they are supposedly not as aggressively tuned as their AP maps so for instance, the "Stage1.stb" StreetTuner map will not be as strong as the "Stage1.ptb" AP map. They leave a lot of headroom for tuning.

Protuner does not have finer adjustment, but it does have MORE adjustments. The granularity of the maps is identical, but StreetTuner does not currently have, for instance, IAT-based Ignition Advance Compensation whereas Protuner does.

If you follow the forums at www.wrxforum.com , there is constant discussion of what mapping will be added to StreetTuner's capability in the next revision. They just keep adding to ST's capability. Soon, ST and Protuner will be equally capable with the exception that ST will be limited to a single ECU.
Quote:
Originally Posted by gqchynaboy
Lets say I got a protune.

Here is a n00b question, if i needed to unplug the battery will I need to reload the protune map again? Also, is it easy to accidently delete/remove the protune map from the AP?
Typically, a Protuner would make their map a BASE map which means it is stored on the ECU in non-volatile memory (you won't lose it when you unplug the battery). They should also give it to you on a computer disk or through email so you can have it at your disposal in case you need to unmarry or whatever.

If they don't give it to you as a .ptb file, you can easily get it off your AP onto your computer using the Map Manager software.
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