Evo_Jay

iTrader: (17)

1. People have had that problem. Read here. https://www.evolutionm.net/forums/ec...-searched.html

2. Usually when switching to 9653 from a usdm EVO 8 ROM, some people have to adjust their idle using evoscan and adjusting the BISS. search around, you'll find the procedure.

3. Dont know, but with there being a lot of feature and gear based boost control, its just probably something you have over looked, or have "tuned" yet.

4. In the "tephra Mod opitions" table, the third thing down "Enable alt maps master ADCOF=1, AutoICS = 2, TPS = 3"

That means put a "3" in for the value for that opition to enable using the throttle to switch alt maps.

Evo_Jay

iTrader: (17)

What ROM?

alicea8541

iTrader: (32)

88590715

Evo_Jay

iTrader: (17)

For 88590715

MUT8A will read 6ACD (stock). Change it to 6EE3 (enter it as 0x....) for psi boost control.

MUT8B will read 6B41 (stock). Change it to 6EE9 (enter it as 0x....) for psi boost control.

alicea8541

iTrader: (32)

thanks

donour

iTrader: (6)

While we're on the topic. I'm having trouble with my boost control settings as well.

Yesterday I installed a #60 pill in the vacuum line between the tee and the wastegate. This should result in a significant pressure drop through that line. I set my wastegate duty cycle to 25 and my desired boost to 20 and went for a drive. Boost spiked to exactly 20psi and tapered down to about 16.

Then I tried to change the settings. No matter what desired boost (psi) I set it always spikes to exactly 20. I've tried lowering the wastegate duty cycle to 0 and raising it all the way to 100, but still get 20psi.

I've logged the WGDC (mut86) and it exactly tracks what I have in the duty cycle table. This doesn't seem to affect boost though.

Overview of configuration:

2004 evo, stock turbo, vishnu-style bleeder near the boost solenoid, #60 pill in the lower wastegate hose, 96530706.

Variable for Boost control = 0x8932
SHLR->SHLL for EBC = 0x4a00
boost error ram address = 0x8d1a
boost error ram address in load error table = 0x8d1a
MUT8A = 0x8d1b
MUT8B = 0x8d21



Is there something I have forgotten to do?

d

evo8330

can i use the v7 patch if currently i have the 96530006 on my car? sorry for the curious question...

nitz

iTrader: (3)

Is live mapping still only for the alt maps as per jscbanks original thread? If it is, then is there a softswitch in v7 to activate altmaps or do I still need harness/switch? thanks

Jeff_Jeske

iTrader: (66)

Just as a follow up.... I was able to dial in my V7 tune today. For the record... after disconnecting the battery the cold start issue I was having went away. Car starts perfect every time now. It also drives tons better when cold now that the ign retard is a thing of the past. I even tossed in the rear 02 removal hack and that worked like a champ.

Good stuff!

Evo_Jay

iTrader: (17)

Well, first off. the boost pill goes in the vacuum line between the TEE and the TURBO, not the vacuum line between the tee and the wastegate.

Also I would ditch the vishnu style bleeder near the solenoid.

donour

iTrader: (6)

D'oh! I meant between the tee and the turbo. The line between the tee and wastegate is empty.

I have tried that, but it doesn't seem to have much of an effect. I don't understand why the boost isn't spiking more. Even though I'm running the plastic DV, I wouldn't think it would leak that much air that quickly.

Likewise I checked for boost leaks. I didn't find any. I would think that a leak would have to be gigantic to keep the boost from spiking.

d

Evo_Jay

iTrader: (17)

A couple things.

First, your #60 pill, did you make it or did you buy it? If you made it, did you make it in a garage or in a machine shop?

Next, when setting up boost, you should zero out the right side of the boost error correction table. Then set your boost using wastegate duty, then reintroduce the error correction.

Also, like I said before, I would ditch the vishnu bleeder thing. Its just gonna make it harder to tune boost.

donour

iTrader: (6)

I made it with a mill, not a hand drill. It's not perfectly centered, but it's pretty close.

I may try to put in a manual boost controller to make sure there isn't any else wrong with the car (broken DV, faculty bcs, etc.)

d

lan_evo_mr9

iTrader: (10)

You can put a vac pump to the top DV nipple to insure it's not leaking.

donour

iTrader: (6)

Good idea.


However, none of this really gets to my initial question. Did I forget to do something? Setting wgdc+boost target to 0 and 100/25 gives the same result. 20 psi of boost.

Actually, tonight quite cold and boost was up a little -- not much, just a tiny bit.


*shrug*

d