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Does the AP loose memory when switching maps?

1.4K views 10 replies 7 participants last post by  Pkskull77  
#1 ·
When switching the real-time maps, does the ecu's memory reset? Ok let me give you a scenario...

You flash your car with a AP basemap. After that you drive with your basemap for a month. As many people say, your car will learn and adjust to the new map. Then you switch the real-time map to valet mode. At this time, does the computer's settings get resetted, or does it transfer over? I'm reluctant on switching to the other real-time maps, because I'm afraid I'll have to start from scratch when I switch back.
 
#2 ·
I was curious about that myself and called Cobb the other day. They said that the ECU learning will get reset if you change real maps. So, what's the point of doing it if you need to drive the car for 2 weeks in order for the ECU to relearn everything again. I wish we could change Realtime maps without losing the ECU settings... :rolleyes:
 
#3 ·
pantag said:
I was curious about that myself and called Cobb the other day. They said that the ECU learning will get reset if you change real maps. So, what's the point of doing it if you need to drive the car for 2 weeks in order for the ECU to relearn everything again. I wish we could change Realtime maps without losing the ECU settings... :rolleyes:
The ECU will only re-set its learning when the ECU is re-set. No memory is lost when you change a Realtime map.

Take care,
Christian.
 
#4 ·
^^ That's strange. I called Cobb and they told me that every time you change real time maps the ECU learning will get erased. Well, I guess not then... Good!
 
#7 ·
I am pretty sure that all the ECU is really "learning" is how much timing advance it can run. If you want to advance your timing instantly just follow these instructions:

First you have to reset the ECU. Then let the car idle until it is fully warmed up in closed loop fuel control. Then hold approx 4-5psi of boost at 3500rpm for 3-4 seconds. This usually results in a bump of 20whp.
 
#11 ·
If this technique does indeed work, which I doubt it does, I don't think it's such a good idea. You don't want to rush the ECU learning period because you want the car to get set up correctly. Holding boost for a couple of minutes does not truly simulate how the car will be driven under WOT, and this is when you want your timing to be solid.

In any case, most of the real time maps are pretty useless, so I wouldn’t bother running them. Don’t let a valet park your car, and if you want fuel economy trade in your STI for a Prius.