AccessPort Cobb!!!
03-21-2008 | 01:32 PM
#29
Drive Master
Joined: Nov 2003
Posts: 1,670
Likes: 0
From: Redmond
Sky, we talked about this yesterday morning. Start with 1.0. Let the trims stabalize over several full drive cycles (warm up to full operating temp, drive, shutdown and allow to cool). Then adjust per the matrix you IM'd to me. If you were able to get 1.0 on the car yesterday, we might be able to make and adjustment on Sunday.
03-21-2008 | 01:38 PM
#30
Instructions:
I've attached 3 ZIP files with 11 calibrations inside each.
Save all of the files onto your AccessPORT with the AP Manager.
When you "install" the AP, select "MM 200x MT NA v1_0.ptm" as your starting map.
Start the car and while it warms up, select "live data" on the AP an scroll through the options until you get to "short term fuel trim".
Watch that value and, once the car is nearly warmed up, take it around the block.
If the STFT is a negative value, you will use one of the files that end in "b". If it is a positive value, you will use a file that ends in "a".
the last number before the letter in the file name corresponds to the amount of fuel trim you want to remove. here is the breakdown:
MM 200x MT NA v1_0.ptm - start file, no trim
MM 200x MT NA v1_1a.ptm - adds 2%
MM 200x MT NA v1_2a.ptm - adds 4%
MM 200x MT NA v1_3a.ptm - adds 6%
MM 200x MT NA v1_4a.ptm - adds 8%
MM 200x MT NA v1_5a.ptm - adds 10%
MM 200x MT NA v1_1b.ptm - subtracts 2%
MM 200x MT NA v1_2b.ptm - subtracts 4%
MM 200x MT NA v1_3b.ptm - subtracts 6%
MM 200x MT NA v1_4b.ptm - subtracts 8%
MM 200x MT NA v1_5b.ptm - subtracts 10%
If the fuel trim is off the scale in one direction or another, let me know and I'll make adjustments.
Once the idle trim is correct (a few % one way or another is totally no big deal - in fact, up to 12% is acceptable since the PCM can go up to 22% before it starts to struggle), drive around in various conditions less that high load and see if the fuel trims stay within +/-6% or so of the idle trim.
If so, you are good to go!
Watch your A/Fs at high load. If they start to swing too lean or too rich, let me know.
You should be seeing high 13's in some conditions, mid 13's in most conditions and high 12's in others.
Once you are comfortable with these, you can move up to the "Level II" flashes for more power (and more heat and then the "Level III" for maximum power.
Watch your A/Fs through the "equivalence ratio" display in live data.
If you have any bogging or sluggishness, let me know the range and the A/F at that point.
Expect to see updated files from time to time and let me know if you have any issues.
Save all of the files onto your AccessPORT with the AP Manager.
When you "install" the AP, select "MM 200x MT NA v1_0.ptm" as your starting map.
Start the car and while it warms up, select "live data" on the AP an scroll through the options until you get to "short term fuel trim".
Watch that value and, once the car is nearly warmed up, take it around the block.
If the STFT is a negative value, you will use one of the files that end in "b". If it is a positive value, you will use a file that ends in "a".
the last number before the letter in the file name corresponds to the amount of fuel trim you want to remove. here is the breakdown:
MM 200x MT NA v1_0.ptm - start file, no trim
MM 200x MT NA v1_1a.ptm - adds 2%
MM 200x MT NA v1_2a.ptm - adds 4%
MM 200x MT NA v1_3a.ptm - adds 6%
MM 200x MT NA v1_4a.ptm - adds 8%
MM 200x MT NA v1_5a.ptm - adds 10%
MM 200x MT NA v1_1b.ptm - subtracts 2%
MM 200x MT NA v1_2b.ptm - subtracts 4%
MM 200x MT NA v1_3b.ptm - subtracts 6%
MM 200x MT NA v1_4b.ptm - subtracts 8%
MM 200x MT NA v1_5b.ptm - subtracts 10%
If the fuel trim is off the scale in one direction or another, let me know and I'll make adjustments.
Once the idle trim is correct (a few % one way or another is totally no big deal - in fact, up to 12% is acceptable since the PCM can go up to 22% before it starts to struggle), drive around in various conditions less that high load and see if the fuel trims stay within +/-6% or so of the idle trim.
If so, you are good to go!
Watch your A/Fs at high load. If they start to swing too lean or too rich, let me know.
You should be seeing high 13's in some conditions, mid 13's in most conditions and high 12's in others.
Once you are comfortable with these, you can move up to the "Level II" flashes for more power (and more heat and then the "Level III" for maximum power.
Watch your A/Fs through the "equivalence ratio" display in live data.
If you have any bogging or sluggishness, let me know the range and the A/F at that point.
Expect to see updated files from time to time and let me know if you have any issues.
03-22-2008 | 02:29 AM
#32
Thread Starter
Registered User
Joined: May 2007
Posts: 162
Likes: 0
From: Mukilteo, WA
MM 2004 MT NA v1_0.ptm My AP is not reading it its on it but it will not OK it, the news i got from Jeff's e-mail dont work but the ones that came with the Cobb work anyone help me here plz.
03-26-2008 | 02:15 PM
#50
Its kinda interesting, actually.
I'm not sure how the law works, but I'm pretty certain that had it been the other way (a Federal PCM in a Cali car) some CARB ruling would have been violated.
I suspect your PCM was bricked at some point - either in an accident or a dealer mishap or through the action of the previous owner - and they just replaced it with what was at hand.
That answers the question as to whether the PCMs are interoperable.
I'm not sure how the law works, but I'm pretty certain that had it been the other way (a Federal PCM in a Cali car) some CARB ruling would have been violated.
I suspect your PCM was bricked at some point - either in an accident or a dealer mishap or through the action of the previous owner - and they just replaced it with what was at hand.
That answers the question as to whether the PCMs are interoperable.