So who wants their ECU's "Chromed"?

[dyter]

Ok, so what pins I need to inverse on the harness ?

You can show my log here http://mornantautosport.free.fr/3000...s/log0001.xlsx and show the AFR >18 and >16 in cruise !

[99 vr4]

No. They are not the same. You drive a GTO on the right hand side if the car, we drive a 3000GT on the left side. Lots and lots of differences. The truth is, we don't know what all the differences are. Every country had its own laws and Mitsu changed the car to meet those standards in every country. We just don't have a lot of hands on data to be able to catalog all the differences. On top of that, many people import cars and thus that further complicates things.

Greg, he actually has a European Spec 3000GT! Not a GTO. LOL Oh and France is a right hand drive country like us.

Even in America these cars changed over the years. Even a true 93 US spec car can't run a 98/99 ECU in it without making mods to the code. This is because in 1996, the govt passed a law requiring every single car must comply with a standard called OBD2. As such, Mitsu had to completely change the way the code worked. Then again in 1998, the govt stepped in again and demanded all ECU must be flashable and again the code had to be re-writen.

The big changes over the years are the emissions equipment. I'm guessing (can't say for sure) that your car doesn't have an EGR, doesn't have a MAP sensor, doesn't have the fuel tank pressure sensor. Does it even have a check engine light??

See, to make all this extra crap work, there needs to be compensations to the fuel calculation to make the car run correctly. If you don't have all this equipment but you're running the code for it, things aren't going to be simple plug and play.

Greg, I pre-flashed his ECU with the London code. This is 1998/1999 Code base with the peripheries turned off for the lack of emission gear.

I really really really need you to verify that the o2s cycle as this is how the code is designed to work. The voltage will fluctuate between .1 and .9 volts consistently. If this is happening, you should be getting your numbers on your wideband closer to 14.7 like you're expecting. FWIW, my completely stock 98 almost never consistantly ran 14.7 in closed loop. Sometimes it was in the lower 13s, sometimes it was in the upper 15s. See, narrow bands just aren't very accurate. This is why I tell people to ignore the wideband while the ECU is in closed loop mode.

Brett's early harness had the front and rear o2 sensor pins swapped. This is due to a misunderstanding in the manual. It wasn't until we verified this on a few cars that this was happening but unfortunately many harness have been sold with this issue. I suspect BlackStealth and Boomslang harnesses were the same too but I don't know for sure.

The problem with these pins being swapped is the code is trimming the front and rear injectors with the opposite sensor and as a result, the fuel corrections cause one bank to run max rich and the other max lean. As a result, the motor doesn't run very well.

This is why its important for you to verify your adaptor harness has these pins maps out correctly. I really need you to do this before we continue with anything else.

At the same token, it seems clear you haven't done any reading at all into the functions of the code. It seems you're just looking for a simple plug, play and drive solution. I can tell your right now, this isn't going to happen. You will need to change several parameters in various tables to make the car run the way you want. This is going to take time.

Ok, so what pins I need to inverse on the harness ?

You can show my log here http://mornantautosport.free.fr/3000...s/log0001.xlsx and show the AFR >18 and >16 in cruise !

An email was sent to Walter showing how to verify the pins. They should be correct, as they were corrected a long time ago. BUT, your car may be different due to the fact that it is a EUR 3000GT.

[dyter]

it is very nice to think of me guys

I tested O2 sensors tomorrow, because it's late here

So do you think a pin 75 & 76 inverse enough of get a correct AFR ?

[iceorphen]

installed and flashed my ecu last night, realized i had lower turbo hose off so it was running like shit.. fixed that and im idling at 700-750.
Dr700s
RC 660 injectors
aem fpr (reading@ 60psi idle right now XD)

Im using Aaron's bit settings, no CEL yet, havent taken it out since this is a motor with 0 miles :P after everything is adjusted and i do an oil change ill drive this bitch around =)

[Greg E]

Do NOT USE Aarons periphery 0 settings!! Leave that whole section alone!

[RealMcCoy]

aem fpr (reading@ 60psi idle right now XD)

You realize how much pressure you'll be making at full boost..? how much fuel pump do you have?

[99 vr4]

it is very nice to think of me guys

I tested O2 sensors tomorrow, because it's late here

So do you think a pin 75 & 76 inverse enough of get a correct AFR ?

First verify the pins via the email I sent you.

Then please tell me:
Do you have 1 or 2 oxygen sensors?
Do the oxygen sensors go to the correct pins in the connector from the email I sent you?
Are you running the "Chrome" ROM?
What version of "Chrome" ROM?

Vérifiez tout d'abord les broches via le courriel que j'ai envoyé.

Alors s'il vous plaît me dire:
Avez-vous 1 ou 2 capteurs d'oxygène?
Ne les capteurs d'oxygène aller aux broches appropriées du connecteur de l'email que j'ai envoyé?
Utilisez-vous la "Chrome" ROM?
Quelle version de "Chrome" ROM?

[iceorphen]

You realize how much pressure you'll be making at full boost..? how much fuel pump do you have?

e85 wally 400, I know the pressure is absurdly high. This is a new motor literally 1st start. Tomorrow after I change the oil and start it up again ill adjust my fpr and begin to work on getting the trims just right.

Ill also put periph0 back to how it was, there is soo much info in this thread its hard to keep up with all the changes

Havent driven it in almost a year I cant wait to get it going

[dyter]

First verify the pins via the email I sent you.

Then please tell me:
Do you have 1 or 2 oxygen sensors?
Do the oxygen sensors go to the correct pins in the connector from the email I sent you?
Are you running the "Chrome" ROM?
What version of "Chrome" ROM?

I have 2 O2 (Front and rear) !

And I use Chrome V1.1 but same effect on stock UK rom
Ok I test all pins out tomorrow

[Greg E]

e85 wally 400, I know the pressure is absurdly high. This is a new motor literally 1st start. Tomorrow after I change the oil and start it up again ill adjust my fpr and begin to work on getting the trims just right.

Ill also put periph0 back to how it was, there is soo much info in this thread its hard to keep up with all the changes

Havent driven it in almost a year I cant wait to get it going

Part of me is tempted to delete this thread when v2 is released. So much bad info in here. It's nothing but confusion.