Notices
ECU Flash

TephraMOD V6 - testing!

Thread Tools
 
Search this Thread
 
Old Mar 28, 2009 | 08:24 AM
  #241  
cij911's Avatar
Evolved Member
iTrader: (14)
 
Joined: Aug 2005
Posts: 2,636
Likes: 1
From: Socal :)
Awesome! Thanks Gear Head!
Reply
Old Mar 28, 2009 | 11:45 AM
  #242  
nonschlont's Avatar
Evolved Member
iTrader: (3)
 
Joined: Mar 2007
Posts: 1,760
Likes: 2
From: Ca
Originally Posted by recompile
nonschlont, you don't need to log both 2 byte and 1 byte load. Also, it looks like your 2-byte to 1-byte load factor is 1.2 in your ROM but 1.3 in EvoScan.

Ditch 2 byte load and change the formula for 1 byte to 1.2*x (or change the value in your Tephra options in your ROM to 1.3)
thanks for the input. I was logging both to compare to see if it was an exact match. It was in 2.5, but not in the beta8 version. both formulas are the same (1.2*x) and 1.2 in the rom.

Hmmnn, I have 1.2 in the rom and 1.2*x as the formula. I have to use the beta8 version to get the rpm_speed_ratio to log for some reason, and use 2.5 for everything else. but just checked the formula, and it was the same as my 2.5 (1.2*x)

Tephra: let me see if I have this right... Ex. If Im seeing 570-102 "rpm_speed_ratio" in 1st, is 105 sufficient? or should I go higher up "in the middle" (inbetween 570-102) say 200? And for 2nd 85-71 should be ~75? 3rd was 57-54 so say 55? 4th was 46.5-40.5 so say 42? and 5th was 33.25-28.3, so say 30?

TIA
Reply
Old Mar 29, 2009 | 05:15 AM
  #243  
tephra's Avatar
Thread Starter
EvoM Guru
15 Year Member
iTrader: (6)
 
Joined: Feb 2007
Posts: 9,486
Likes: 67
From: Melbourne, Australia
phil - did you leave the filter at 8?

1st I would try 109ish... whatever it sort of settles too after a little bit...

but the general idea is the code will "snap" to the closest... so if you had 100 in 3rd and 70 in 4th then would stay 3rd gear UNTIL it got to ~85 then it would jump to 4th...
Reply
Old Mar 29, 2009 | 06:03 PM
  #244  
nonschlont's Avatar
Evolved Member
iTrader: (3)
 
Joined: Mar 2007
Posts: 1,760
Likes: 2
From: Ca
Originally Posted by tephra
phil - did you leave the filter at 8?

1st I would try 109ish... whatever it sort of settles too after a little bit...

but the general idea is the code will "snap" to the closest... so if you had 100 in 3rd and 70 in 4th then would stay 3rd gear UNTIL it got to ~85 then it would jump to 4th...
I have not messed w/ the filter. stock setting @ "8"
I currently have the rpm_speed_ratio table like this:
1 6
30 5
43 4
55 3
75 2
110 1
1801 0
Reply
Old Mar 29, 2009 | 06:06 PM
  #245  
tephra's Avatar
Thread Starter
EvoM Guru
15 Year Member
iTrader: (6)
 
Joined: Feb 2007
Posts: 9,486
Likes: 67
From: Melbourne, Australia
yeah that should be fine...

you logging gear yeh? just make sure the gear is correct and that it doesn't "jump" to another gear mid pull or anything..

of course it will be a bit funny straight after shifting - when the clutch/gb is still syncing with the engine...
Reply
Old Mar 29, 2009 | 06:33 PM
  #246  
dan l's Avatar
Account Disabled
iTrader: (3)
 
Joined: Apr 2006
Posts: 1,029
Likes: 0
From: USA
Tephra,

I figured out why my car wouldn't run well when cold. I disconnected the EGR valve and everything is now fine. However I just wanted to see if any other USDM 0015 users are having this issue with the egr hooked up. The car goes horribly lean about 15 seconds after firing the engine when stone cold and stalls out (18:1+AFR, saw 20:1 today before it stalled out). It is fine once coolant temps reach about 150degF. This leaning out is due to the EGR valve opening up and filling the intake manifold with unmetered air. I'm not sure if I found a bug or if this is user error.
Reply
Old Mar 29, 2009 | 07:15 PM
  #247  
nonschlont's Avatar
Evolved Member
iTrader: (3)
 
Joined: Mar 2007
Posts: 1,760
Likes: 2
From: Ca
ya logging gear. Its working fine...

thanks for the input!
Reply
Old Mar 29, 2009 | 07:20 PM
  #248  
mrfred's Avatar
EvoM Guru
iTrader: (50)
 
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
Originally Posted by dan l
Tephra,

I figured out why my car wouldn't run well when cold. I disconnected the EGR valve and everything is now fine. However I just wanted to see if any other USDM 0015 users are having this issue with the egr hooked up. The car goes horribly lean about 15 seconds after firing the engine when stone cold and stalls out (18:1+AFR, saw 20:1 today before it stalled out). It is fine once coolant temps reach about 150degF. This leaning out is due to the EGR valve opening up and filling the intake manifold with unmetered air. I'm not sure if I found a bug or if this is user error.
Can you verify its cranking up EGR duty by logging it? Its a MUT 85.
Reply
Old Mar 29, 2009 | 10:59 PM
  #249  
fostytou's Avatar
EvoM Community Team
iTrader: (15)
 
Joined: Sep 2006
Posts: 3,143
Likes: 7
From: Aurora, IL
Originally Posted by mlocatel
@fostytou

How do you WGDC tables look like? Did you reduce the WGDC curve in higher gears?

Thanks

mlocatel
https://www.evolutionm.net/forums/6808179-post153.html

-------

...And dan l: mine's been running fine... Cold start has been a bit harder now that I switched back to E85 and changed injectors, but its getting better as I tune it and not doing anything out of the ordinary. It definitely does not spike lean either unless I'm on the wrong map. Did you check your injector startup IPW table and your injector scaling?

Last edited by fostytou; Mar 29, 2009 at 11:03 PM.
Reply
Old Mar 30, 2009 | 01:04 AM
  #250  
tephra's Avatar
Thread Starter
EvoM Guru
15 Year Member
iTrader: (6)
 
Joined: Feb 2007
Posts: 9,486
Likes: 67
From: Melbourne, Australia
ok so far from the testing people I have to following enhancements:

1) add flag to enable/disable airflow calc
2) force 0% wgdc when in 'valet' mode

anything else? how are people finding the boost drop on AFR/Knock?
Reply
Old Mar 30, 2009 | 01:01 PM
  #251  
dan l's Avatar
Account Disabled
iTrader: (3)
 
Joined: Apr 2006
Posts: 1,029
Likes: 0
From: USA
Originally Posted by mrfred
Can you verify its cranking up EGR duty by logging it? Its a MUT 85.
MUT 85 is 0 with key in ignition and engine not running. When I started the car and coolant temps were 140 deg F MUT 85 went to 128. At some point about a minute later MUT 85 went to 0. All this happened while holding an idle (the egr vacuum lines are pulled so it actually idles now).
Reply
Old Mar 30, 2009 | 01:28 PM
  #252  
mrfred's Avatar
EvoM Guru
iTrader: (50)
 
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
Originally Posted by dan l
MUT 85 is 0 with key in ignition and engine not running. When I started the car and coolant temps were 140 deg F MUT 85 went to 128. At some point about a minute later MUT 85 went to 0. All this happened while holding an idle (the egr vacuum lines are pulled so it actually idles now).
128 = EGR fully open, so it is misbehaving. Pretty interesting. I've been looking through tephra's v6 code in preparation for writing a flex fuel patch for it, and I haven't seen anything that could affect EGR duty at all, but then I haven't gone through everything yet. Maybe it was a bad flash? Have you tried flashing to another ROM and then flashing back to the tephra ROM?
Reply
Old Mar 30, 2009 | 01:59 PM
  #253  
recompile's Avatar
Evolved Member
iTrader: (38)
 
Joined: Nov 2006
Posts: 1,745
Likes: 10
From: New Hampshire, USA
Boost drop on high knock works perfectly. I'm really loving v6 Tephra, I will be sending another donation soon.

The best features, IMHO, are gear dependent boost control (car feels COMPLETELY different now) and WGDC 100% under X load.

Thank you, mrfred, and others so much for your hard work.
Reply
Old Mar 30, 2009 | 02:25 PM
  #254  
dan l's Avatar
Account Disabled
iTrader: (3)
 
Joined: Apr 2006
Posts: 1,029
Likes: 0
From: USA
Originally Posted by mrfred
128 = EGR fully open, so it is misbehaving. Pretty interesting. I've been looking through tephra's v6 code in preparation for writing a flex fuel patch for it, and I haven't seen anything that could affect EGR duty at all, but then I haven't gone through everything yet. Maybe it was a bad flash? Have you tried flashing to another ROM and then flashing back to the tephra ROM?
I ran a v6 rom that my friend travis made for me since our cars are set up similliarly, car misbehaved. I then downloaded my own v6 rom and modified it for use on my car, car misbehaved. I then downloaded a v6 rom again and changed only immobilizer, injector scaling, and latencies, car still misbehaved. I then put in the original v6 rom that travis made, disconnected the EGR vacuum lines and no more problem. So I've had this problem on many versions and many different downloads of v6 roms. I feel that I have to be doing something wrong, but I can't figure out what it is.

Last edited by dan l; Mar 30, 2009 at 04:07 PM.
Reply
Old Mar 30, 2009 | 03:16 PM
  #255  
mrfred's Avatar
EvoM Guru
iTrader: (50)
 
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
ok, you've done the right things to verify its not a bad flash. I'll leave it up to tephra to work out the issue since its his ROM. :-)))
Reply



All times are GMT -7. The time now is 08:52 AM.