Notices
General Engine Management / Tuning Forum Discuss general EMS tuning concepts that do not pertain to a specfic brand or product.

PO108 code after switching to 1.7

Thread Tools
 
Search this Thread
 
Old Sep 27, 2004 | 12:31 AM
  #16  
bbbwrx's Avatar
Thread Starter
Evolving Member
iTrader: (10)
 
Joined: Aug 2003
Posts: 494
Likes: 0
From: SLC UTAH
Ok I had some problems when flashing my UTEC as well. When I saw MJs thread I went to turboXS site and downloaded what i thought to be the new verison. but it said 1.5mot(in my comp, it said 1.7 on TXS site). So went back after a few fail flashes and i downloaded the 1.7 and it didn't come with the falsh program so I used the one with 1.5 and had it on verify. It says 1.7 on the screen so I should have 1.7 installed.
The fan came on anytime I had the UTEC in flash mode and the red light on the UTEC was on. After the first flash gone wrong. Is this designed to be that way. Like hey I turned your fan on because your an idiot sort of thing.

I don't think this is the cause of the problem. I am running a K&N panel filter as well. Maybe that is the cause of our knock. I will take it out and put the paper one in. And I will throw the tuner lite in so I can put the AFR in as well.

I think it has something to do with maybe a bad flash or with our air filters.

A little trial and error will tell us here shortly. Glad to know i wasn't the only one so I don't feel stupid

Ben

Last edited by bbbwrx; Sep 27, 2004 at 12:34 AM.
Reply
Old Sep 27, 2004 | 01:40 AM
  #17  
areet's Avatar
Evolving Member
iTrader: (1)
 
Joined: May 2004
Posts: 306
Likes: 0
From: Laredo, Texas
Running the stage2 map I'm getting alot of knock! I once even heard the detonation while accelerating and thought I blew my engine up It was a loud PING sound. I need to get a lappy that WORKS so I can do some datalogs and log the knock/ a/f ratios.
Reply
Old Sep 27, 2004 | 06:14 AM
  #18  
Spec C's Avatar
Evolving Member
iTrader: (8)
 
Joined: Sep 2004
Posts: 230
Likes: 4
From: AZ
What is the default value for stock and mod injector?
Reply
Old Sep 27, 2004 | 08:21 AM
  #19  
MalibuJack's Avatar
EvoM Guru
20 Year Member
iTrader: (5)
 
Joined: Feb 2003
Posts: 10,572
Likes: 14
From: Royse City, TX
Default values should be 550 and 550..
Reply
Old Sep 27, 2004 | 08:23 AM
  #20  
MalibuJack's Avatar
EvoM Guru
20 Year Member
iTrader: (5)
 
Joined: Feb 2003
Posts: 10,572
Likes: 14
From: Royse City, TX
Your car seems to be pretty modified, you really shouldn't just "Drop a map" on there, its no surprise it gets alot of knock.. you really need to passthrough until you can get some idea of your AFR's and get a good tune.
Reply
Old Sep 27, 2004 | 01:49 PM
  #21  
Turboxs (Pete)'s Avatar
Newbie
 
Joined: Mar 2004
Posts: 19
Likes: 0
From: Sydney (Australia)
I believe that the P0108 code is caused when you reflash the UTEC while it is connected to the ECU. This is because the barometric signal is held high by the UTEC during the reflash and the ECU detects this as a fault.

The procedure should be to disconnect the ECU from the UTEC during reflash by unplugging the connectors going to the ECU.

regards
Pete
(TurboXS)
Reply
Old Sep 27, 2004 | 01:49 PM
  #22  
nmyeti's Avatar
Evolving Member
iTrader: (1)
 
Joined: Oct 2002
Posts: 184
Likes: 0
From: Gaithersburg, MD USA
Originally Posted by MalibuJack
Default values should be 550 and 550..

If you find yourself running lean you might want to richen up BOTH of those values, as it will make a nice global correction to the map. Keep the values the same and you'll not have to worry about having weird offsets at idle.


-Nathan
Reply
Old Sep 27, 2004 | 05:20 PM
  #23  
Hot Feces's Avatar
Evolving Member
 
Joined: Dec 2003
Posts: 105
Likes: 0
From: Arroyo Grande, CA
Why does the Mod Fuel section supposed to read all zeros?
Code:
     DATA1

    ,     ,     ,   ,Load,Knock,      ,      , Mod,  Mod,      ,  Mod
 RPM,  MAP,  MAF,TPS,Site,Count, Ign#1, Inj#1, Ign,  Fuel,Boost,  MAF
    ,  psia,  Hz, % ,    ,     ,  deg , duty , deg,   %  ,(OL) ,   Hz
  861,+26.1,  28,  0, 00,   00,   +3.2,   1.1,ECU. , +0.0,ECU.  ,  28
  853,+26.1,  28,  0, 00,   00,   +3.2,   1.1,ECU. , +0.0,ECU.  ,  28
 2132,+26.1,  81, 10, 00,   00,  +32.5,   4.0,ECU. , +0.0,ECU.  ,  83
 2131,+26.1,  81, 11, 00,   00,  +34.3,   5.1,ECU. , +0.0,ECU.  ,  83
 2231,+26.1, 318, 39, 10,   00,  +19.4,  14.7,+24.2, +0.0,ECU.  , 301
 2283,+26.1, 283, 88, 10,   00,  +16.2,  11.6,+14.8, +0.0, 75.00, 293
 2335,+26.1, 307, 95, 10,   00,  +15.3,  12.7,+14.8, +0.0, 75.00, 309
 2396,+25.9, 331, 97, 10,   00,  +13.6,  13.8,+14.8, +0.0, 75.00, 355
 2476,+25.9, 366, 98, 10,   00,  +11.4,  15.0,+14.8, +0.0, 75.00, 329
 2575,+25.7, 400, 98, 10,   00,  +10.4,  16.7,+14.8, +0.0, 75.00, 349
 2679,+25.7, 431, 99, 10,   00,   +9.5,  18.6,+14.8, +0.0, 75.00, 448
 2789,+25.7, 502, 99, 10,   00,   +8.0,  21.6,+14.6, +0.0, 75.00, 394
 2913,+25.7, 587, 99, 10,   00,   +7.3,  24.4,+14.2, +0.0, 75.00, 568
 3035,+25.9, 665,100, 10,   00,   +4.8,  28.5,+13.7, +0.0, 75.00, 511
 3168,+25.9, 788,100, 10,   07,   -2.1,  34.2, +9.1, +0.0, 75.00, 741
 3340,+25.7, 931,100, 10,   00,   -3.7,  39.9, +8.8, +0.0, 75.00,1041
 3497,+25.7, 996,100, 20,   00,   -5.7,  44.0, +5.8, +0.0, 75.00,1275
 3683,+25.5,1096,100, 30,   00,   -5.7,  51.6, +4.7, +0.0, 75.00,1315
 3831,+25.5,1103,100, 40,   00,   -5.2,  53.1, +8.0, +0.0, 75.00,1207
 4006,+25.9,1103,100, 40,   00,   -5.2,  53.8, +9.1, +0.0, 75.00,1173
 4198,+25.9,1184,100, 40,   07,   -5.4,  58.0, +5.1, +0.0, 75.00,1116
 4363,+25.7,1176,100, 50,   00,   -5.5,  56.6, +3.5, +0.0, 75.00,1225
 4456,+25.9,1265,100, 50,   00,   -5.0,  60.3, +3.1, +0.0, 75.00,1121
 4655,+25.7,1240,100, 50,   00,   -5.1,  62.1, +7.1, +0.0, 75.00,1412
 4823,+25.7,1326,100, 60,   00,   -4.0,  63.7, +7.2, +0.0, 75.00,1366
 4982,+25.9,1366,100, 60,   00,   -4.0,  67.2, +7.4, +0.0, 75.00,1445
 5128,+25.7,1416,100, 60,   00,   -3.5,  68.5, +7.8, +0.0, 75.00,1515
 5249,+25.7,1445,100, 70,   00,   -3.5,  70.7, +8.2, +0.0, 75.00,1322
 5402,+25.7,1497,100, 70,   00,   -3.7,  72.7, +8.2, +0.0, 75.00,1506
 5564,+25.9,1501,100, 80,   00,   -3.4,  74.1, +9.3, +0.0, 75.00,1552
 5747,+25.9,1557,100, 80,   00,   -3.0,  75.7,+11.7, +0.0, 75.00,1470
 5878,+25.9,1577,100, 80,   00,   -2.3,  76.7,+12.0, +0.0, 75.00,1602
 5984,+25.9,1633,100, 80,   00,   -3.0,  78.9,+12.3, +0.0, 75.00,1602
 6138,+26.1,1639,100, 90,   00,   -2.0,  80.4,+12.4, +0.0, 75.00,1785
 6253,+26.1,1666,100, 90,   00,   -1.5,  81.2,+13.3, +0.0, 75.00,1666
 6410,+26.1,1700,100, 90,   00,   -1.4,  79.9,+14.9, +0.0, 75.00,1677
 6523,+25.9,1700,100, 90,   01,   -0.3,  80.4,+15.8, +0.0, 75.00,1824
 6653,+25.9,1706,100, 90,   02,   +0.1,  82.1,+16.0, +0.0, 75.00,1838
 6802,+25.7,1724,100, 90,   00,   +1.9,  81.3,+16.2, +0.0, 75.00,1602
 6915,+25.7,1718,100,100,   00,   +2.1,  82.0,+16.3, +0.0, 75.00,1736
 7032,+25.9,1718,100,100,   02,   +2.9,  81.4,+16.6, +0.0, 75.00,1562
 7153,+25.9,1718,100,100,   01,   +2.9,  85.8,+17.1, +0.0, 75.00,1724
 7246,+25.9,1724,100,100,   00,   +3.3,  84.6,+17.6, +0.0, 75.00,1736
 7017,+25.9, 238, 19, 00,   00,  +23.0,  12.2,ECU. , +0.0,ECU.  , 180
 7183,+25.9, 128, 10, 00,   00,  +33.7,   9.0,ECU. , +0.0,ECU.  , 151
 7230,+25.7,  84,  0, 00,   00,  +38.7,   7.7,ECU. , +0.0,ECU.  ,  49
Reply
Old Sep 27, 2004 | 06:14 PM
  #24  
MalibuJack's Avatar
EvoM Guru
20 Year Member
iTrader: (5)
 
Joined: Feb 2003
Posts: 10,572
Likes: 14
From: Royse City, TX
Because the new open loop fueling has a "Background map" already there.. so unless you need to alter it, you've already got a nice fuel curve for Stage1 and Stage2..
Reply
Old Sep 27, 2004 | 06:53 PM
  #25  
Hot Feces's Avatar
Evolving Member
 
Joined: Dec 2003
Posts: 105
Likes: 0
From: Arroyo Grande, CA
Ah, gotcha.. forgot about that background map that was mentioned earlier.
Reply
Old Sep 28, 2004 | 03:43 AM
  #26  
MalibuJack's Avatar
EvoM Guru
20 Year Member
iTrader: (5)
 
Joined: Feb 2003
Posts: 10,572
Likes: 14
From: Royse City, TX
I see a few things in your segment of that log.. First, at lower RPM you'll likely have to add a bit of fuel, and with those high knock counts, you need to adjust your timing slightly, or smooth the timing in that area (it looks to make a sudden 4 degree jump, that is either the result of knock or the cause of it) Usually if you look at the line you get knock, look at the line above it and see what that timing is, the load site, and RPM, then go to your map and find that cell, then reduce the timing in that cell a little and smooth the cells around it so it isn't a large jump (if there is one) its called interpolation. Then add a little fuel to your map at higher RPM where your getting the other knock.

My experience is that the background map with any aftermarket modifications is generally slightly lean at higher RPM, and if you have any sort of higher flowing intake components (K&N filter, or MAF pipe upgrade, intercooler, any or all of those mods) you'll have to add +2 fuel to your map from 3000-4500 then from 4500 through redline you should add +3 or so..

if your using UCC2 to fiddle with your maps, you can use it to smooth any transition between the cells if you need to (It helps make the car feel smoother)

Also, be absolutely sure that your boost curve is close to what TurboXS recommends (which I think is a 22psi spike settling at 19psi, if its higher, you need to adjust your boost control or add fuel accordingly)

This is only a guideline because unless you know your AFR's you can't be certain of anything, however ADDING fuel, and PULLING timing will not hurt things any worse and should help a little until you can do a correct retune.
Reply
Old Sep 28, 2004 | 09:59 AM
  #27  
Imprezd's Avatar
Evolving Member
 
Joined: Feb 2004
Posts: 184
Likes: 0
As Nathan has stated if you are running rich you should try lower both your modded and stock injector sizes. Also it should be noted that the base map is just that a base map, to get you started some sets of mods will run great some will need to be tweaked. The mod's that are listed for Stage II are TXS DP, Race-pipe, Cat-back and Intake.

Those that are running lean I'd like to know what kind of intake setups you are running. It would seem that your car ran relatively lean previous to the current software update. As well as what i have noticed is that Jack's car has run more aggressive timing than our car did as well and our timing seemed to be very conservative. Those who have had bad lean conditions and detonation please try to replace the airbox with the stock for the sake of testing to see if this makes a difference.

When it comes to maf housing and element constrtuction All intakes are not created equal.

Also do not use the parameter it is not needed. If you uploaded it to your utec, go ahead and reflash your unit with the 1.7 again.

Thanks,
Jermaine@turboxs.com

Last edited by Imprezd; Sep 28, 2004 at 10:18 AM.
Reply
Old Sep 28, 2004 | 05:53 PM
  #28  
nmyeti's Avatar
Evolving Member
iTrader: (1)
 
Joined: Oct 2002
Posts: 184
Likes: 0
From: Gaithersburg, MD USA
Originally Posted by Imprezd
As Nathan has stated if you are running rich you should try lower both your modded and stock injector sizes.
Jermaine@turboxs.com

It should be pointed out here that Jermaine mistyped that.

If you are lean tell the UTEC that you have smaller injectors and it will do a global correction to increase injector pulse width.

If you are rich you want to raise both numbers to tell the UTEC that you have larger injectors and it will globally lower your injector pulse-width.

-Nathan
Reply
Old Sep 29, 2004 | 07:10 AM
  #29  
Imprezd's Avatar
Evolving Member
 
Joined: Feb 2004
Posts: 184
Likes: 0
Originally Posted by nmyeti
It should be pointed out here that Jermaine mistyped that.

If you are lean tell the UTEC that you have smaller injectors and it will do a global correction to increase injector pulse width.

If you are rich you want to raise both numbers to tell the UTEC that you have larger injectors and it will globally lower your injector pulse-width.

-Nathan
Reply
Old Oct 1, 2004 | 12:44 PM
  #30  
Ad-Rok's Avatar
Evolving Member
iTrader: (3)
 
Joined: Oct 2003
Posts: 153
Likes: 0
From: DC
Disconnect from ECU?

Originally Posted by Turboxs (Pete)
I believe that the P0108 code is caused when you reflash the UTEC while it is connected to the ECU. This is because the barometric signal is held high by the UTEC during the reflash and the ECU detects this as a fault.

The procedure should be to disconnect the ECU from the UTEC during reflash by unplugging the connectors going to the ECU.

regards
Pete
(TurboXS)
Hi Pete, Nathan Jermaine and all,

This means that disconecting from the ECU is a CRUCIAL step in upgrading software then, and I highly recommend you publish this change to the instruction manual you attached with the 1.7 software on your web site. This deserves to be at the top of this forum as well...

So will the utec power up with no connection to the ECU, or do we have to use that 9v battery-supply thing to get enough juice to do the reflash?

I may drive up tomorrow and come see you guys to give me a quick hand with this if need be.

Thanks,
Adam
Reply



All times are GMT -7. The time now is 09:16 AM.