Guys listen,

9417 works fine yes. But so does 9653. My car runs BETTER on 9653 than it ever did on 9417. Yes there were some bugs with 9653 getting it to work but when Tephra releases his v7 final thread I have the modified ROM's already packaged up for USDM guys to run the 9653 on their cars. So basically all it will be is copying over your fuel/timing/etc. values just like 9417.

I don't see the problem here. Why make Tephra manage two ROM's and go through testing with another ROM delaying the release of v7 further? After working with 9417 and 9653 there is many more cars that can run 9653 then there are 9417! Hence making it a universal ROM. I have yet to find someone that has had problems that cannot be resolved on 9653 that came from 9417. Most of the issues are user issues and or people being lazy and not digging deep to find out what the true issues are that are causing the problems.

I am not trying to disrespect anyone here just stating the facts. I am in no means an expert on this stuff but understand it enough to be dangerous.

We made this decision months ago during v7 testing, why not mention the issues then?

If you are having issues please explain them here because I would like to know as well. Just like Tephra this is the first I have heard of MAJOR issues with 9653 running on USDM 8's.

 

94170015 isn't even as well defined as 96530006. I'd say the first step in being productive here is to get the 94170015 ROM as well defined as 96530006. Getting both xmls equivlent would also improve how well people can switch between ROMs. I've looked at the addresses and I'm pretty sure there are several errors in one of the two ROM xmls.

I don't care either way, but the community needs to focus on getting everything well defined and correct, having numerous ROMs where people are blindly grabbing addresses from one ROM and trying to use them on the other is where the problem seems to stem from. There are numerous threads where entries for tables are listed as 94170015 but have axis locations for 96530006 or some other VIII ROM and they are wrong.

This would be much easier if one ROM was focused on. If all the US VIII pre-05 guys want 94170015, then I'd say somebody that uses it and understands how to mod the ROM and find the maps needs to be supporting it and a primary point of contact. That way when Tephra or somebody else writes a patch or if some new map is found, they can work with them to make sure the xml is updated and the patch is available.

EDIT:
Why don't we start an offical thread for the USDM VIII guys to figure out what ROM to use and what cahnges need to be made to make it work right?

 

I have not experienced any issues with my car because I have never made the switch. I read a ton on the boards and saw all kinds of issues.

I did, however, attempt to put 9653 into an 05 evo. It started ok, but wouldn't rev past 3k. As RPM approached 3k the CEL would flash like mad. I immediatly re-flashed the car back to it's rom and tuned from there.

 

for the love of mike, listen to phenem.

my 2003 evo 8 with big cams and aftermarket air filter, runs well.

 

One of the reasons I mentioned the 0015 rom is for lean-spool. I know most of you guys really don't like it, but for some reason I love it and the decrease in lag time that it gives. I've never had any issues tuning fueling with lean spool enabled and for the very large turbo that I'm upgrading to over the winter I'd like to be able to keep that feature to try and keep lag down as much as possible. Honestly right now the only mod options that I currently run are the 2 knock light settings, and the 1 byte load conversion. Other than that I could care less for alt maps/valet mode/NLTS/etc.

And now that I've finally gotten my IAT sensor and will be working on the SD swap, I'd just really like to incorporate the bigmap feature into the 0015 rom to increase my resolution. With the 2.3 build that I'm doing I won't be able to rev to 10k anyway, but it would be nice to be able to control every little detail of the fueling and timing.

 

96530006 lean spool tuning definitions are available. Is there something in particular relating to lean spool on 96530006 that's different from 94170015 that you've come across?

 

That's a new one, certainly nothing I've run into before (and I'm an '05 ). Did you have a chance to dig into it any further than just a quick initial flash?

One note that I'll make: I've seen more than a few issues resolved a simple ECU reset (ie. pull power to wipe memory) after a major ROM change.

 

Up to this point I hadn't seen any real definitions on it, so I pretty much ASSumed that it wasn't incorporated into the rom, similar to the 0008's.


I'll play around more on my car with the 96530006 rom and see how it reacts. I just have more familiarity with the 0015 rom is all.

 

I would imagine lean spool is on all of the ROMs. If or not it's defined in the XML is the issue that I was talking about above.

 

Just a guess, but sounds like, maybe, valet mode was enabled on fresh start... I think thats what tephra has it set to. (3000)

 

Tephra mods were all turned off, but that is what it acted like.

I went back through the ROM and found several addresses that are wrong.

Anyone care to take a look and correct the addresses that are wrong for me????

Sorry about being off topic....

 

My ONLY issue is with idling and throttle hang. I tune a fair amount of cars with BIG cams and for SOME reason the 0015 rom is always easier to get the idle to be better than the 9653 rom (no idea why). If you guys 'fix' whatever issues it has, by all means.....have at it. I'm not 100% against the 9653 rom (I run it in my 1G/Evo8 ECU swapped car).

I'm 100% in favor of less rom's to mod though and will wait to see how this 'fixed' version works.

 

I guarentee the issues most of you are seeing with wrong data in the wrong place is XML definition issues.

When tephra posts the v7 both of us agreed that I will get the second post for the USDM conversion 9653 ROM. I have created three versions which include all XML's and information needed. They are noted below:

Download 1:
1. Bone stock ROM with USDM immob. fixed

Download 2:
1. Immob. fixed to work on USDM cars
2. mrfred psi based boost implemented (just edit Tephra's gear dependant map)
3. OBD II Inspection ready for EVAP and EGR
4. Disabled EGR, EVAP, and Idle Tests
5. Disabled P0300 code
6. Disabled lean spool
7. Disabled boost cut
8. Disabled boost delay cut
9. Fixed throttle hang under partial throttle (this fix worked for my car, might not on others)

Downloads 3:
1. Everything that Download 2 has with Speed Density Implemented

That is what I will be posting once Tephra gives me the OK to post up!

That should make most issues and problems go away once everyone is running the same ROM and have all the same XML's.

 

+1

 

Valet mode rev limit?

d