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V1 Engine wiring questions

P
To be honest, I just need to be able to data log some pulls so I can send the file to the tuner. I believe this can all be done through the obd2 port so maybe this isn't for me as cool as it looks.
 
G
Depends on your donor. The turbo has a a wideband from the factory. The other donors don't. Some tuners will try and work with the stock narrow band o2 sensor, but most won't.
 
P
Ok. Maybe it's something to put on the list for after completion.

I want to revisit the radiator fan wiring. The one connector has a blue and a white wire. The blue one gets connected to the one we set up in the main harness, I understand that. Do we do anything with the white wire from the connector?
 

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G
Light Blue is power to the cooling fan. The connector and white wire goes away.

You will need to ground the fan somewhere. I don't remember the "official" way. I just grounded it to a handy screw/bolt.
 
Ross
@PHENDERSON not sure if you have an LSJ or not, but on my car, I have revisited the radiator fan wiring.

31229

The white wire is "Low Reference" which is normally not used on a Goblin, but could be if you want to keep high and low speeds on your radiator fan.
31232


The default Goblin wiring uses the front fan in the parallel setting, which is running the radiator fan at 12V. The original LSJ Cobalt wiring kept an AC fan (which is right beside the radiator fan), so it could also run in serial setting, which in running the 2 fans at 6 volts each.

Since our Goblin only has 1 radiator fan, and doesn't use the serial setting, I have considered substituting the interior fan speed control resistor for the AC fan. This would allow the Goblin to run the radiator fan at 12v (parallel setting) and at a lower voltage (serial setting).

dfkitcar.com

Ross's extended city, easy entry Goblin- 06 SS/SC, NW Arkansas

Prototype .090" thick polycarbonate windscreen. Still has the protective film on it.
dfkitcar.com dfkitcar.com
dfkitcar.com

Ross's extended city, easy entry Goblin- 06 SS/SC, NW Arkansas

Prototype .090" thick polycarbonate windscreen. Still has the protective film on it.
dfkitcar.com dfkitcar.com
 
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P
Perfect, thanks again.

Okay another one. What is this metal bracket for that's bolted to the cam cap? It rotates but doesn't have any connections.
 

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G
I'm pretty sure that isn't stock. The OEM isn't likely to do an extended stud with a flanged nut that doesn't have the stud sticking out a least a few threads.

Can you add your donor to your signature? If you have an LNF I can confirm this evening that is something I don't have.
 
Ross
That is a wire support for the fuel injector wire connector. I'm a poet!
31231

PS, Feel free to update your signature with your donor car info.
Info to do that is in my signature line... which I think is only visible if you are on a PC, and not on a phone.
Cheers.
 
Sluggonaut
Rauq said:
On an '06 LSJ at least, the red/black wire at the back of the refrigerant pressure sensor is the signal wire. On my AEM MTX-L wideband, the yellow wire in the pigtail is an 0-5v output. I had to run a wire from the back of the wideband gauge at the front of the car to the splice point near the engine harness connector in the back of the car.
Click to expand...

Not to hijack, but to possibly add a visual reference, I found a connector on the same leg of the engine harness as the AC compressor connector.

It was labeled at one point and is now just a flag of blue tape; however, it does have a red and black wire on it and I'm wondering if these are the AC signal wires referenced.

These wires are pretty mangled and weren't connected to anything. The donor had an AC delete of some sort in that the compressor was still there and plugged in but everything else had been removed. I think that is why these wires are so mangled, they were just hanging there when I came across them. In any case, are these the wires referenced?

31461
 
Rauq
Looks like it. Should be kind of an oval-shaped connector. If you'd posted the head on view too I would be 100% sure. If you can read the pin numbers on the connector, they should correlate as below, but also generally speaking I've found if all the wire colors are the same as expected that's good confirmation. That's not yet steered me wrong.

1 - Black
2 - Gray
3 - Red/Black
 
Sluggonaut
Here is the head-on view of the connector:

31469


There are 4 connectors on that section of my harness, 3 of which I unplugged from something and labeled. From L to R are the IC Pump, AC Compressor, Pass Side Radiator Fan, and the unknown one above:

31470
 
G
You don't extend them to the front, they need to be connected to the ECM on one end and the Wideband on the other. HP Tuners will pull it from the ECM.
 
Sluggonaut
Gtstorey said:
You don't extend them to the front, they need to be connected to the ECM on one end and the Wideband on the other. HP Tuners will pull it from the ECM.
Click to expand...

Wideband sensor or gauge? Isn't one end of these wires already at the ECM?

I misunderstood, I thought these wires got connected to the wideband gauge wiring harness behind my gauge at the front of the car.

How is this different than using a serial port connected to the wideband for data logging?
 
G
If you are planning on running a full time A/F gauge, I don't know what the best way of wiring it is. If not running a A/F Gauge it can report into ECM and read by HP Tuners to tune.
 
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