TephraMod V7
Oct 13, 2009 | 09:30 PM
#271
- You will probably need to adjust your low long term fuel trims, mine went really negative, so I had to rescale my MAF in the low Hz range (around 19-75Hz). You could also slightly reduce your latency, as the JDM cars run a higher value
- Your cold start will not be as smooth as before, but reasonable
- Your cold start will not be as smooth as before, but reasonable
I switched every map under the "Fuel" tab from my 0011 rom to the 7006 and I am leaving it where it is... (LTFT Low= -9, LTFT Mid= -9) as the Actual AFR is very close to displayed AFR...
Cold start is still less than desired I will have to work on that some more... maf compensation helped but just messed up other stuff even worse...
Oct 13, 2009 | 10:32 PM
#272
I have noticed this going from the 0011 rom also... my fuel trims went about 6% more negative and cold start is all over the place. I spent 8 hours today messing with the car, and got the fuel trims back in check only to find out they are nowhere close to the AFR map values and will not have enough "play space" to get the AFR back in check. Before I was at about 11.6 actual AFR and an 11.5 displayed AFR... when I rescaled and got the fuel trims back in check, actual AFRs were 12.2 and displayed AFR was 10.1... this was scaling 750cc injectors at 713 and upping the latencies quite a bit, ending with a -4% for LTFT low and mid.
I switched every map under the "Fuel" tab from my 0011 rom to the 7006 and I am leaving it where it is... (LTFT Low= -9, LTFT Mid= -9) as the Actual AFR is very close to displayed AFR...
Cold start is still less than desired I will have to work on that some more... maf compensation helped but just messed up other stuff even worse...
I switched every map under the "Fuel" tab from my 0011 rom to the 7006 and I am leaving it where it is... (LTFT Low= -9, LTFT Mid= -9) as the Actual AFR is very close to displayed AFR...
Cold start is still less than desired I will have to work on that some more... maf compensation helped but just messed up other stuff even worse...
Oct 13, 2009 | 10:38 PM
#274
I have been doing some reading on the forums trying to get a better understanding of how the ECU calculates load. I'm hoping that there is someone out there that really knows exactly what it's doing but I have yet to read that post. Looking at the Motec for example if you choose to use a MAF you simply have a table that injects fuel proportional to the amount of air entering the engine as metered by the MAF. Assuming standard compensation tables (temp, etc) once the ECU is fully mapped it will run exactly what you told it to. You could swap fairly major parts and very little to no adjustment is necessary. In theory, there's no reason the EVO ECU can't do the same thing. However, in practice it appears that there is a reason.
Last edited by dhammans; Oct 14, 2009 at 01:30 AM.
Oct 14, 2009 | 02:37 AM
#276
Now to try and get this straight since I've been out of the loop for the past 8 pages...
MAP scaling does NOT need to be applied when using the Omni 4 bar? Only alterations to the VE table instead? Reason I'm double checking is this is for the SD patched version and not the maf version and the scaling for the Omni sensor is much different than the stock 3 bar. Possibility of perhaps using an "offset" table for different map sensors so major mods to the VE tables won't have to be done in order to get the car started?
Oct 14, 2009 | 03:39 AM
#277
FOrgive me if this has been answered. Phenem, when you "disable" bit 11 in FAA I show the ROM with a value of "0". In the spreadsheet that was made a awhile back it shows this is the enable code and disable is "1". Is the spreadsheet incorrect?
Oct 14, 2009 | 04:20 AM
#278
Registered User
Joined: Nov 2007
Posts: 1,507
Likes: 2
From: Trinidad
I'd stick with 96530706 as there are ALOT more people running it and more tables available. There's always new tables being discovered, and far more support from the community. Tephra will be pushing the 96530706 to be the 'universal' evo 8 rom to ease his workload on future releases.
The JDM roms tend to get neglected by the guys here, because hardly anyone runs them.
By the way, it says you drive an evo ix in your profile, the 96530706 is for evo 8s and possibly 7s. Evo 9 roms are wayyyy different!
The JDM roms tend to get neglected by the guys here, because hardly anyone runs them.
By the way, it says you drive an evo ix in your profile, the 96530706 is for evo 8s and possibly 7s. Evo 9 roms are wayyyy different!
there is a lot of support for 9055 as well, there will be a V7 for it as well. i guess i can give both a try and see.
PS: its for a friend!
Oct 14, 2009 | 05:00 AM
#280
Evolving Member
Joined: Feb 2008
Posts: 214
Likes: 1
From: South Africa
I am having problems with the new V7 patches.
I have downloaded both Tephra's original Rom he posted int the first post of this thread, and also this one from Phenem - see below
EDM Evo VIII
Option 2 (v7 + Mods) - Download | Mirror
* Immob. fixed to work on EDM cars
* mrfred psi based boost implemented as default (just edit Tephra's gear dependant map)
* OBD II Inspection ready for EVAP and EGR
* Disabled EGR, EVAP, and Idle Tests
* Disabled P0300 code
* Disabled lean spool
* mrfred double fuel cut load limit implmeneted and set to 300 load (change to whatever you need this to be, read more)
I then used the XLS file posted up earlier and converted my old map tables over to the big version, and also copied over everything else from my V7T6 Rom into the new Bigmaps ROM.
I first flashed my car with Tephra's ROM he posted, the car starts perfectly and idles great.
I then rev the car a bit, while it is stationary, and at around 2000rpm there is a major misfire and at the same time I can hear a relay chattering by the drivers side fuse box. (My Evo is a RHD)
Release the throttle pedal and the car idles fine.
I then flash my car with Phenems ROM as I mentioned above, and I have the exact same problem.
I then disable Valet mode for both ROMS, and also set the Valet Mode RPM to 8000. Reflash the car again with both Tephra's and Phenems ROMS and I have the same problem.
This morning I tried converting my mates Evo to the BigMaps, his Evo8 has the same ROM as mine - 96530006 EDM models - to the new Bigmaps, flash his car after copying everything over and his car also starts fine but has the exact same problem when I try to rev it.
The only difference between the cars is that mine uses ECU controlled boost and my friends uses a EVC6 to control boost.
I have tripled checked everything to make sure that all the values I copied over are exactly the same as my previous ROM - 96530706 V7T6 and it all checks out fine.
Anybody have any ideas what may be wrong?
Have I missed something?
A shot in the dark here......I suspect it may have something to do with control of the fuel pump relays which sit by the cabins fuse box, which would explain why the car is misfiring in tune with the relay chattering.
any help appreciated... thx
I have downloaded both Tephra's original Rom he posted int the first post of this thread, and also this one from Phenem - see below
EDM Evo VIII
Option 2 (v7 + Mods) - Download | Mirror
* Immob. fixed to work on EDM cars
* mrfred psi based boost implemented as default (just edit Tephra's gear dependant map)
* OBD II Inspection ready for EVAP and EGR
* Disabled EGR, EVAP, and Idle Tests
* Disabled P0300 code
* Disabled lean spool
* mrfred double fuel cut load limit implmeneted and set to 300 load (change to whatever you need this to be, read more)
I then used the XLS file posted up earlier and converted my old map tables over to the big version, and also copied over everything else from my V7T6 Rom into the new Bigmaps ROM.
I first flashed my car with Tephra's ROM he posted, the car starts perfectly and idles great.
I then rev the car a bit, while it is stationary, and at around 2000rpm there is a major misfire and at the same time I can hear a relay chattering by the drivers side fuse box. (My Evo is a RHD)
Release the throttle pedal and the car idles fine.
I then flash my car with Phenems ROM as I mentioned above, and I have the exact same problem.
I then disable Valet mode for both ROMS, and also set the Valet Mode RPM to 8000. Reflash the car again with both Tephra's and Phenems ROMS and I have the same problem.
This morning I tried converting my mates Evo to the BigMaps, his Evo8 has the same ROM as mine - 96530006 EDM models - to the new Bigmaps, flash his car after copying everything over and his car also starts fine but has the exact same problem when I try to rev it.
The only difference between the cars is that mine uses ECU controlled boost and my friends uses a EVC6 to control boost.
I have tripled checked everything to make sure that all the values I copied over are exactly the same as my previous ROM - 96530706 V7T6 and it all checks out fine.
Anybody have any ideas what may be wrong?
Have I missed something?
A shot in the dark here......I suspect it may have something to do with control of the fuel pump relays which sit by the cabins fuse box, which would explain why the car is misfiring in tune with the relay chattering.
any help appreciated... thx
Oct 14, 2009 | 05:06 AM
#281
The fuel map is a close representation of what the actual AFR will be when lean spool is disabled. Rescaling the MAF can also help to get the actual values close to the fuel map.
Oct 14, 2009 | 05:06 AM
#282
Nah sounds like valet is on.
Leave valet on in tephramod options, and hold the accelerator pedal down for 3 sec until your engine light flashes.
make sure you haven't selected the accelerator as your alt map toggle setting.
Every tephramod I have used enables valet mode the first time you flash.
Leave valet on in tephramod options, and hold the accelerator pedal down for 3 sec until your engine light flashes.
make sure you haven't selected the accelerator as your alt map toggle setting.
Every tephramod I have used enables valet mode the first time you flash.
Oct 14, 2009 | 05:27 AM
#285
These scalings SHOULD be correct now.
Code:
<scaling name="psia16 JDM3barMAP" units="psia" toexpr="x/(5.18*2)" frexpr="x*(2*5.18)" format="%.1f" min="0" max="32" inc="0.1" storagetype="uint16" endian="big"/> <scaling name="psia8 JDM3barMAP" units="psia" toexpr="x/(5.18*2)" frexpr="x*(2*5.18)" format="%.1f" min="0" max="24.6" inc="0.1" storagetype="uint8" endian="big"/> <scaling name="BoostErrorPsi JDM3barMAP" units="psi" toexpr="(x-128)/(8*5.18)" frexpr="x*8*5.18+128" format="%.1f" min="-3.1" max="3.1" inc="0.1" storagetype="uint16" endian="big"/> <scaling name="psia16 OMNI3BarMAP" units="psia" toexpr="x/(5.616*2)" frexpr="x*(2*5.616)" format="%.1f" min="0" max="29.6" inc="0.1" storagetype="uint16" endian="big"/> <scaling name="psia8 OMNI3BarMAP" units="psia" toexpr="x/(5.616*2)" frexpr="x*(2*5.616)" format="%.1f" min="0" max="22.7" inc="0.1" storagetype="uint8" endian="big"/> <scaling name="BoostErrorPsi OMNI3BarMAP" units="psi" toexpr="(x-128)/(8*5.616)" frexpr="x*8*5.616+128" format="%.1f" min="-2.8" max="2.8" inc="0.1" storagetype="uint16" endian="big"/> <scaling name="psia16 OMNI4barMAP" units="psia" toexpr="x/(4.23*2)" frexpr="x*(2*4.23)" format="%.1f" min="0" max="39.2" inc="0.1" storagetype="uint16" endian="big"/> <scaling name="psia8 OMNI4barMAP" units="psia" toexpr="x/(4.23*2)" frexpr="x*(2*4.23)" format="%.1f" min="0" max="30.1" inc="0.1" storagetype="uint8" endian="big"/> <scaling name="BoostErrorPsi OMNI4barMAP" units="psi" toexpr="(x-128)/(8*4.23)" frexpr="x*8*4.23+128" format="%.1f" min="-3.8" max="3.8" inc="0.1" storagetype="uint16" endian="big"/> <scaling name="psia16 GM3barMAP" units="psia" toexpr="x/(5.728*2)" frexpr="x*(2*5.728)" format="%.1f" min="0" max="29" inc="0.1" storagetype="uint16" endian="big"/> <scaling name="psia8 GM3barMAP" units="psia" toexpr="x/(5.728*2)" frexpr="x*(2*5.728)" format="%.1f" min="0" max="22.3" inc="0.1" storagetype="uint8" endian="big"/> <scaling name="BoostErrorPsi GM3barMAP" units="psi" toexpr="(x-128)/(8*5.728)" frexpr="x*8*5.728+128" format="%.1f" min="-2.8" max="2.8" inc="0.1" storagetype="uint16" endian="big"/> <scaling name="psia16 Kavlico3.5barMAP" units="psia" toexpr="(x/(4.098*2))-6.25" frexpr="(x+6.25)*(2*4.098)" format="%.1f" min="0" max="34.3" inc="0.1" storagetype="uint16" endian="big"/> <scaling name="psia8 Kavlico3.5barMAP" units="psia" toexpr="(x/(4.098*2))-6.25" frexpr="(x+6.25)*(2*4.098)" format="%.1f" min="0" max="24.9" inc="0.1" storagetype="uint8" endian="big"/> <scaling name="BoostErrorPsi Kavlico3.5barMAP" units="psi" toexpr="(x-128)/((8*4.098)-6.25)" frexpr="x*((8*4.098)-6.25)+128" format="%.1f" min="-4.8" max="4.8" inc="0.1" storagetype="uint16" endian="big"/> <scaling name="psia16 Kavlico5barMAP" units="psia" toexpr="(x/(2.732*2))-9.39" frexpr="(x+9.39)*(2*2.732)" format="%.1f" min="0" max="51.4" inc="0.1" storagetype="uint16" endian="big"/> <scaling name="psia8 Kavlico5barMAP" units="psia" toexpr="(x/(2.732*2))-9.39" frexpr="(x+9.39)*(2*2.732)" format="%.1f" min="0" max="37.3" inc="0.1" storagetype="uint8" endian="big"/> <scaling name="BoostErrorPsi Kavlico5barMAP" units="psi" toexpr="(x-128)/((8*2.732)-9.39)" frexpr="x*(8*2.732)-9.39)+128" format="%.1f" min="-10.2" max="10.2" inc="0.1" storagetype="uint16" endian="big"/>