Random car updates

[Jeff V.]

You can see the sensors with the stock ECU too. Doesn't have to be Chrome.

[Hans_GZP]

Well yea... but he has it and it's the easiest to get basic equipment to connect to. Lately, I've been having an impossible time connecting to hybrid ecus... even with a cable direct from evoscan and running their old v2.5 software. It gets frustrating and is worth the swap to a Chrome ecu just for the ease of connection and data rate transfer. Swapping in a chrome ecu into my stealth was the only way I saw the O2 not working. Then, I swapped back to my stock ecu after diagnostics.

[DCIV]

If they are reading on blackstealth could they still be bad?


Coop

[DCIV]

Wow. What a crappy day of getting nothing done. All I wanted to do is log the Wideband.

So my ecu pin out, is different than what is on the chrome website. Don’t know which is right.

Pin 55 is my o2 sensor...okay find you can scale it and make it work, but my Wideband is at the merge...doesn’t that matter?

Okay pin 93...great...don’t have a wire coming out of there.

Okay let’s use blackstealths logger. Wires coming apart, email him. He says mines old and while it can do everything he didn’t even remember what port was what...great. Sent him 48 bucks for new cables and what not to get that fixed.

That should solve my logging issue but in reality it seems things have become much more steamline since I first got into this flashing. I like streamline. I like simple. Maybe it’s worth it to upgrade to the no conversion harness type. Maybe I just need my harness fixed.

I just spent a day to run one wire, that didn’t amount to anything but more problems.

I would also really love a brand new engine wiring harness and to start from scratch.

Coop

[Jeff V.]

I've got a 98 VR4 harness I was saving for Vira's car :suspect2:

[DCIV]

I would have random connectors left over or have to bridge stuff, I really appreciate it but I would just like a 1st gen one.


Coop

[mjannusch]

Wait a sec... You've got two narrowband O2 sensors and a wideband O2 sensor, right?

Right bank (front side of car) O2 sensor needs to be a narrowband O2 sensor connected to pin 55 (harness side) that connects to pin 72 on the ECU side.
Left bank (firewall side of engine) O2 sensor needs to be a narrowband O2 sensor connected to pin 56 (harness side) that connects to pin 71 on the ECU side.

Wideband 0-5v output can be physically located in the downpipe or wherever you want it, and is connected to pin 93 on the ECU side which I think is the EGR temp sensor input or something useless like that. Depending on who made your conversion harness or when it was made, it may or may not have a wire for pin 93 in the ECU side of the harness.

Then you need to set Chrome up to properly scale the values:
https://www.3sgto.org/threads/10777-Chr ... post211663

...and make sure you are using the latest XML files and such with EvoScan/ECUFlash.

[DCIV]

Yup, no wire coming out of 93. I emailed Adam asking what he thinks I should do.


Coop

[DCIV]

My cables came in from blackstealth yesterday. I am going to try to update the software and possibly move his unit to the glovebox.

On his Wideband it has two wires....I only have one wire out of my Wideband...what does the other one go to? Also any ever update the software? In the instructions there is a short time span from turning on the ignition to initializing the program.


Coop

[mjannusch]

The pin on the left in the connector at the LCDBC is WB, the right pin is “Aux input”.

[DCIV]

[quote=""mjannusch""]The pin on the left in the connector at the LCDBC is WB, the right pin is “Aux input”.[/quote]

Hmmmm. I think I have a different model than you as mine has two pins (where all the other conctors go, and connector with two wires coming out. I think the white one is what I want and the black one is a ground but surely I don’t have to ground it as the whole circuit is with the Wideband already.


Coop

[DCIV]

Fuck this shit and these little fucking pins. Literally stupid, it shouldn’t be this hard to connect something.


Coop

[DCIV]

Frustration done. Got the pins changed out. Some of you need to be surgents on mice though as that was stupid.

Not to continue my stupidity, I want to mount these in my glovebox.

Anyone ever do that? Glovebox seems to seal up pretty tight so I’m sure I’m gonna have to cut some away.


Coop

[mjannusch]

Run the wires behind the center console side carpet and up over the back of the glovebox, or you could make a hole to run them through the bottom/back if you want to do some sort of mounting tray in there or whatever.

But what are you mounting in there? The LCDBC display, or the box, or both? The box should fit between the ECU and the firewall, and for the display I'd get one of Antero's 3D printed dash vent mounts for it. At least that's what I'm planning on doing.

Dealing with little pins.... Don't you have pigtails or harnesses for all of that, that just need to be appropriately connected to each other (or crimps, or solder, etc.)? Shouldn't have to screw with pins except for maybe the few that aren't in the harness and need to be added (WBO2 to Chrome?).

[DCIV]

Mine screen is mounted at the bottom of the tach and I love it. The box was where you mentioned and almost all the wires going into the box have frayed and some broke off totally. Hence the pins and re doing them. He suggested hot glue to make sure it doesn’t happen again. But I figured mounting in the glovebox (just the box with the flash port) would be an ideal place.

I was thinking of coming in the side of the glovebox just for wire length, but I would have to cut a good size slot so that the wires aren’t pulled up and down every time.

None of this is with the ecu, that’s with jester for my plug and play version. I will have to deal with pins when I wire in my Wideband into that. But that should be about it.


Coop

[DCIV]

Matt,
Do you have the plug and play flashed ecu? Plus the blacksteath box? My old adapter harness had all the plugs on it, with the plug and play is the connector my original or does one come with it to monitor? Also what about the flashing harness?


Coop

[mjannusch]

My Chrome ECU is just a regular '99 ECU (SL with the boost control circuit added?) and a patch harness - not plug and play.

Plug and Play will have the old-style harness connectors on it like your stock ECU and just plug it in. Not sure about the flashing/OBD harness if you have a 1G car - think it comes with a dongle of some sort that plugs into your diagnostic connector to make that work.

[aaronatstate]

[quote=""mjannusch""]My Chrome ECU is just a regular '99 ECU (SL with the boost control circuit added?) and a patch harness - not plug and play.

Plug and Play will have the old-style harness connectors on it like your stock ECU and just plug it in. Not sure about the flashing/OBD harness if you have a 1G car - think it comes with a dongle of some sort that plugs into your diagnostic connector to make that work.[/quote]

It comes with a 4th connector that you route the wires over to the OBD I port, plug them in, and flash through the stock OBD I port.

[DCIV]

I’m absolutely failing today!!!

So ecu should be here sat, still think I’m gonna have to do some wiring which takes away from the whole plug and play but I will figure it out.

So I think I’m gonna update my firmware on my BS (blackstealth). I read his page and set off to get my old laptop charged. “Open arduinouploader.exe”. K, go to the web and try and find this program. First one doesn’t have processor “m1234” so I go get another one, it will not install, go find another one. Still no processor. Shit. 45 mins down the drain. Let’s open up the update and see what happens. Son of a female....there is arduinouploder.exe. Okay. Let’s go down and do this. Get down to the car, get everything set up, get ready to plug in the com port...crap mines female too. Doh’ that’s not a com port that’s a vga port. I don’t own shit with a com port.


Yup. Killing it.


Coop

[DCIV]

So I did this.

https://imclumzy.wordpress.com/2010/08/ ... operation/

But when I activate my rear wing the fans come on for my rear mounted condenser. Why would that happen?


Coop