PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

lc-1 wideband install ??

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Old May 12, 2005 | 05:57 PM
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Question lc-1 wideband install ??

has anyone hooked one up to there fbody?
i have never installed a wideband and i dont know were to begin.

it has a

red ==== 12v supply
blue ==== heater ground
metallic ==== system ground
yellow ==== analog out 1
brown ==== analog out 2
black ==== calibration wire


helppppp.... i can send a copy of the instructions if it would help. not sure how to power it. i will be using it with my hptuners eio.
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Old May 12, 2005 | 07:14 PM
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I just finished an install on my 04 GTO.

The exhust bung should be welded in the exahust pipe aft of the collector but before the Cat.

The 12V power supply should go to a switched 12v source. I found a relay (fuel pump) that is only powered when the engine is running. Short sensor life has been a complaint on Wideband sensors, you can hook it up to any 12DCV source that is powered with the key in the run position. Just keep in mind in this situation anytime you are running the radio or such this sensor is also being heated without any airflow going past it.

Find a solid ground point and connect the blue wire to it.
The calibration wire (black) is optionally hooked up to both an LED and a normally open push button. When the button is depressed it makes a path to ground to recalibrate the sensor. the sensor needs to be in free air for this process

Use the analog out 2...this is the 5DCV default source. either one will work but you will have to reprogram analog out 1 to work with HP tuners.

The metallic wire is hooked up to the black ground wire on the HP Tuners EIO extension cable. Any of the HP Tuners A/D inputs (I used white) should be hooked up to the outputs from the LC-1
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Old May 13, 2005 | 12:14 AM
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also replied by ken on hptuner website. thanks to both of ya.
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Old May 17, 2005 | 05:29 AM
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How have you guys been getting the cable into the car? I heard someone say that they went through the shifter??? How?

All help is appreciated!

I finally found someone that had this LC-1 in-stock so its been ordered. Again. DAMN APE
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Old May 17, 2005 | 10:31 AM
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there's an access hole on either side of the car at the firewall you can go through too... I've heard about people going through the shifter but not sure how it's done
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Old May 17, 2005 | 11:27 AM
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I dont have the stock A4 shifter any more so I just slit the stock shifter cable grommet and the O2 sensor plug made it through. The LC1 itself under the console. You may be able to get it through with the cable on it as well. I didnt want to leave the unit itself under the car.
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Old May 20, 2005 | 09:35 PM
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Originally Posted by 99whitews6
How have you guys been getting the cable into the car? I heard someone say that they went through the shifter??? How?

All help is appreciated!

I finally found someone that had this LC-1 in-stock so its been ordered. Again. DAMN APE
I drilled a hole, then inserted a grommet purchased from a home improvement store....looks OEM, worked great
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Old May 23, 2005 | 07:07 PM
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so you dont use the black or the yellow wire? what do you hook the brown wire to?
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Old May 25, 2005 | 01:10 PM
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Originally Posted by b727pic
I just finished an install on my 04 GTO.

The calibration wire (black) is optionally hooked up to both an LED and a normally open push button. When the button is depressed it makes a path to ground to recalibrate the sensor. the sensor needs to be in free air for this process
Quick question on the ground for the calibration pushbutton and LED...Are they grounded to the same wire (bare metallic wire) that is attached to the HPTuners EIO black wire?

Thanks in advance
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Old May 25, 2005 | 03:12 PM
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This is what I have but I havent hooked it up yet. I can send a pic of the box I made if someone wants to host it.

Can any verify this is correct?

LC-1:
red ==== 12v supply-Connected to 12V source?
blue ==== heater ground- Connected to solid ground?
metallic ==== system ground-Connected to EIO Black?
yellow ==== analog out 1- NOT USED?
brown ==== analog out 2- Connected to LC-1 White?
black ==== calibration wire- Connected to LED and Pushbutton?

EIO:

White === Connected to LC-1 Brown?
Purple === NOT CONNECTED?
Blue === NOT CONNECTED?
Green === NOT CONNECTED?
Black === Connected to LC-1 metallic?
Red === NOT CONNECTED TO ANYTHING?
Yellow === NOT CONNECTED TO ANYTHING?
Orange === NOT CONNECTED TO ANYTHING?
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Old May 25, 2005 | 03:32 PM
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Originally Posted by 99whitews6
This is what I have but I havent hooked it up yet. I can send a pic of the box I made if someone wants to host it.

Can any verify this is correct?

LC-1:
red ==== 12v supply-Connected to 12V source?
blue ==== heater ground- Connected to solid ground?
metallic ==== system ground-Connected to EIO Black?
yellow ==== analog out 1- NOT USED?
brown ==== analog out 2- Connected to LC-1 White?
black ==== calibration wire- Connected to LED and Pushbutton?

EIO:

White === Connected to LC-1 Brown?
Purple === NOT CONNECTED?
Blue === NOT CONNECTED?
Green === NOT CONNECTED?
Black === Connected to LC-1 metallic?
Red === NOT CONNECTED TO ANYTHING?
Yellow === NOT CONNECTED TO ANYTHING?
Orange === NOT CONNECTED TO ANYTHING?

99whitews6,

That's how mine is wired so far. My only question is where does the 'ground' side of the LED and button attach to? The manual only states to attach it to 'ground.' Would that be the chassis ground or the unit's ground (the bare metallic wire)?
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Old May 25, 2005 | 03:56 PM
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I plan on running a wire from the car ground to my box and then hook all ground wires to that connection. I box is plastic so it wont be a ground by itself.
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Old May 25, 2005 | 09:45 PM
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Originally Posted by 99whitews6
I plan on running a wire from the car ground to my box and then hook all ground wires to that connection. I box is plastic so it wont be a ground by itself.

Just got an email from Felipe at Innovate Motorsports. He stated that both the pushbutton and the LED ground should be attached to the system ground (the bare wire that connects to the EIO black wire).....Hope this helps...
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Old May 26, 2005 | 04:26 AM
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Originally Posted by horist
I've heard about people going through the shifter but not sure how it's done

on my M6 car I cut a little "slit" in the rubber around the shifter and just pass the cable up through the floor when I have the wideband in the car (I don't drive with it all the time....just tune....).....my O2 bung for the wideband is in the "X" of my X-pipe (no CATs) so I read both banks.....
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Old May 26, 2005 | 05:09 AM
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Originally Posted by ChrisLe
Just got an email from Felipe at Innovate Motorsports. He stated that both the pushbutton and the LED ground should be attached to the system ground (the bare wire that connects to the EIO black wire).....Hope this helps...
So the Pushbutton and LED ground attach to the EIO metallic attaches to the EIO black which all attached to the car ground. Sounds good to me. I never did like my EE classes!!
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Old May 26, 2005 | 10:45 PM
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Originally Posted by ChrisLe
Quick question on the ground for the calibration pushbutton and LED...Are they grounded to the same wire (bare metallic wire) that is attached to the HPTuners EIO black wire?

Thanks in advance
I just tied the led and switch wires together, put them on one side of the switch and ran the other end of the switch to a ground on the car. Works fine for me...plus this way I can "calibrate" the sensor without HP tuners EIO hooked up.
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Old Jun 16, 2005 | 09:42 AM
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Anyone tried to mount it in place of the narrowband O2 and send the Analog Out 1 signal back to the PCM? From what I can tell in the online instructions, that output simulates the a narrowband sensor. I'd rather not have to have a bung installed. TIA

**Edit - Also, which 12v source did yall tap into?**

Last edited by SSpdDmon; Jun 16, 2005 at 09:53 AM.
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Old Jun 16, 2005 | 10:17 AM
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I think I am going to just tap right into the battery terminal for the 12V.
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Old Jun 16, 2005 | 10:30 AM
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Originally Posted by SSpdDmon
Anyone tried to mount it in place of the narrowband O2 and send the Analog Out 1 signal back to the PCM? From what I can tell in the online instructions, that output simulates the a narrowband sensor. I'd rather not have to have a bung installed. TIA

**Edit - Also, which 12v source did yall tap into?**
One more thing...if I had an old stock O2 sensor and cut the end off (the connector), could I just wire the wideband with that in the stock O2 location?
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Old Jun 16, 2005 | 10:35 AM
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i soldered onto a wire in my column. i believe it was my cruise control. pink wire in column.
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