So who wants their ECU's "Chromed"?

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07-01-2012, 11:38 AM
Monster Stealth

Quote:

Originally Posted by Greg E

:disdain:

I completely agree with your opinion that we should just tune for knock, but I wanted to start out conservative and try to control as many variables as I can.
07-01-2012, 01:28 PM
sublime_whatigo

Ya I lol'ed at that comment. I found using the conversion was a better starting point because I was hitting over 6 counts of knock while running meth injection without it.
07-02-2012, 01:22 AM
GTOJOE

Quote:

Originally Posted by blackvr

Guys, great work on the flashable ecu conversion. I have a '92 3000GT here in Australia that needs this conversion ! Any chance of rehosting the files ? i'm not sure they are working ? Cheers Mike

Hey Mate,

Your 92 ECU won't be flashable. You will need to purchase a flashable ECU from this thread.

http://www.3sgto.org/f62/original-vr...-ecu-8761.html

Cheers,

Joe
07-02-2012, 08:19 AM
blackvr

Joe, Yes I am in the process of chasing down a Flashable Ecu... They certainly arent common here in Australia, so I guess at this stage the USA market is the best bet. Is the "SL" ecu out of a NA version of a 3000Gt. We never had that model here ? Most of my work revolves around reflashing Evo Lancers and Legnum VR4s. At last I can do some sensible tuning with my 3000GT.
Is the links up and going at all ?
07-02-2012, 11:46 PM
75blackray

Quote:

Originally Posted by Greg E

With Toni's car there was a little bit of a difference over the MAFT/SAFC combo in terms of peak power. BUT there was a huge difference in midrange! Almost 40hp!

Yeah, that's actually what really made me switch over. With the arc-2 if I wanted 11.5-12.0 afr at redline i would run really rich (<10:1) in the mid-range and finally get a punch of power at about 5k. Dr-500's shouldn't have lag! ;) I'm in the process of replacing a lot of gasket's and vacuum lines, but might finish it up tomorrow night.
07-04-2012, 08:51 PM
vr4whore

Hi everyone, I recently switched from speed density to ECUflash +maf and I'm having some issues.

I have a JDM 95 GTO with a 98 Montero flashable ECU (equivalent to a 98 SL) the injector map and the harness was sent to me by the person who makes harnesses for everyone and who is on 3si.org. I have a (boost gauge, boost controller as the ecu is not a VR4), I will jump the fuel pump relay in a few days, I don't have a hotwire, I have a stock fuel press regulator, I don't have wideband/narrowband yet.

The car runs and idles good but drives really bad, I boosted gently and it feels jerky and way off. My catalytic converter light flashes when I give it gas (Cat light only on JDM cars) and car will sometimes stall temporary when shifting from second to third (open loop BOV probably).

I know that the JDM GTOs have only 1 O2 sensor and the ecu will read from the "rear" o2 sensor, also know that 95 does not have o2 heater circuit so I tried to disable both the heaters (11 and 14), my EGR is disabled, and I also tried to disable the front O2 sensor(but kept both o2 heaters activated), I will try without the o2 heaters and without the front o2 sensor tonight but so far I'm having no luck I think I need 2g JDM specific peripheral settings.

I also have some codes current and stored, but I don't know how accurate they are since I don't have the OBDII (second part of HHH), they are 11- heated O2 sensor and 24 speed sensor. Also, when I disabled the o2 heaters in the ECUflash I got a code 25 (borometric pressure sensor) again I don't know how accurate this is because I wasn't in OBD2 mode using HHH.

There is also a guy in Aus I think that replaced the stock O2 sensor with an LC1 wideband o2 controller and fed that to both of the O2 sensors that the flashable ECU expects, but I don't have a wideband yet so I'm just trying to make it drivable for now.

Looking forward to getting my car running :)

Thanks!
07-04-2012, 09:33 PM
99 vr4

Quote:

Originally Posted by vr4whore

Hi everyone, I recently switched from speed density to ECUflash +maf and I'm having some issues.

I have a JDM 95 GTO with a 98 Montero flashable ECU (equivalent to a 98 SL) the injector map and the harness was sent to me by the person who makes harnesses for everyone and who is on 3si.org. I have a (boost gauge, boost controller as the ecu is not a VR4), I will jump the fuel pump relay in a few days, I don't have a hotwire, I have a stock fuel press regulator, I don't have wideband/narrowband yet.

The car runs and idles good but drives really bad, I boosted gently and it feels jerky and way off. My catalytic converter light flashes when I give it gas (Cat light only on JDM cars) and car will sometimes stall temporary when shifting from second to third (open loop BOV probably).

I know that the JDM GTOs have only 1 O2 sensor and the ecu will read from the "rear" o2 sensor, also know that 95 does not have o2 heater circuit so I tried to disable both the heaters (11 and 14), my EGR is disabled, and I also tried to disable the front O2 sensor(but kept both o2 heaters activated), I will try without the o2 heaters and without the front o2 sensor tonight but so far I'm having no luck I think I need 2g JDM specific peripheral settings.

I also have some codes current and stored, but I don't know how accurate they are since I don't have the OBDII (second part of HHH), they are 11- heated O2 sensor and 24 speed sensor. Also, when I disabled the o2 heaters in the ECUflash I got a code 25 (borometric pressure sensor) again I don't know how accurate this is because I wasn't in OBD2 mode using HHH.

There is also a guy in Aus I think that replaced the stock O2 sensor with an LC1 wideband o2 controller and fed that to both of the O2 sensors that the flashable ECU expects, but I don't have a wideband yet so I'm just trying to make it drivable for now.

Looking forward to getting my car running :)

Thanks!

FYI ... the Montero ecu is NOT the same as an SL ecu and WILL NOT work without modification.

And I am guessing you mean blackstealth made your harness.. he is not the only one that makes harnesses, but since I am the other guy (actually the original) and I don't recognize your handle, it must be blackstealth.
07-04-2012, 10:55 PM
aaronatstate

And you need to make sure you have the periphery bits set they way that is specified in this thread.
07-04-2012, 11:24 PM
vr4whore

Quote:

Originally Posted by 99 vr4

FYI ... the Montero ecu is NOT the same as an SL ecu and WILL NOT work without modification.

And I am guessing you mean blackstealth nader your harness.. he is not the only one that makes harnesses, but since I am the other guy (actually the original) and I don't recognize your handle, it must be blackstealth.

It was blackstealth who made it. I know not ALL 98-99 montero ECUs are flashable, but some are. Blackstealth chose by part number and they have knock circuits built it. At the same time I bought a friend 99 3.5L montero ecu, he put into his USDM stealth and his car runs and drives great. I'm using a 98 montero 3.8L ECU I think.

These 98-99 Montero ECU part numbers don't need modification because they have knock circuits built in.
MD343513
MD361885
MD365261
07-05-2012, 01:17 AM
vr4whore

Quote:

Originally Posted by aaronatstate

And you need to make sure you have the periphery bits set they way that is specified in this thread.

I couldn't find periphery bits for a 2g JDM Car(JDM cars have 1 o2 sensor, no EGR), Monster Stealth said "1G cars must use the periphery bit setup that was posted earlier in this thread to not get a CEL. "

My peripherys inputs don't seem the same, for example I have a input for rear o2 sensor?
http://i108.photobucket.com/albums/n...08/perbits.png

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