2001 PCM PIN for wideband datalogging
05-31-2009, 04:15 PM
#1
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2001 PCM PIN for wideband datalogging I'm trying to figure out which pin to tap into for the 0-5v output. EGR is what most ppl use, but mine doesnt have a wire coming out of the EGR pin since its an 01. I've searched and found where ppl were tapping into the a/c pressure i believe, will this work? I'm just trying to get this wideband install complete so i can get to some part throttle tuning.
05-31-2009, 07:20 PM
#2
The PCM still has provisions for the EGR.
You will need to enable EGR and log the EGR PID.
1999+ LS1 PCM EGR Pin-Out:
Blue Connector:
Pin 41, EGR Pintle Position Ground
Pin 47, EGR Pintle Position Sensor 5V Reference (constant 5V)
Pin 55, EGR Pintle Position Sensor Signal (WBO2)
In a pinch you can push the wire into the connector
until it makes contact with the PCM pin.
I have done this but I suggest getting the terminals for a solid connection.
You will need to enable EGR and log the EGR PID.
1999+ LS1 PCM EGR Pin-Out:
Blue Connector:
Pin 41, EGR Pintle Position Ground
Pin 47, EGR Pintle Position Sensor 5V Reference (constant 5V)
Pin 55, EGR Pintle Position Sensor Signal (WBO2)
In a pinch you can push the wire into the connector
until it makes contact with the PCM pin.
I have done this but I suggest getting the terminals for a solid connection.
05-31-2009, 08:23 PM
#3
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I have my LC1 tied into the ac pressure sensor. It works fine, but sometimes it gives me a weird reading on startup. I believe this is a grounding issue on my fault, and I am just being lazy, but when logging and running its fine. If you are planning on using HPT, then make sure you get the math on your PID right or the readings in your scanner will be way off.
For me, the readings in the scanner are not as fast as the gauge itself. But they are very close.
For me, the readings in the scanner are not as fast as the gauge itself. But they are very close.
03-11-2010, 08:14 PM
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I gave up a while back..haha I have the wire ran from the wb to the pcm but never could get a reading for EGR on hptuners, so lets figure this out... I might tackle this tomm. and try and get it working.
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03-11-2010, 10:58 PM
#8
ill let u know if i get it working saturday. I finally got everything i need, the lc1, pcm pins, and the speed inc billet gauge adaptor for the t/a vent. i think i have my wiring all planed out. im running a 12 gauge wire from my passenger side head to a grounding block under the passenger kick panel. running the yellow wire to pin 55. and im thinking im going to run a 12 gauge wire from the postive battery terminal to a relay thats powered by a switched 12v. so i get less noise. Thought about doing a write up but theres all ready a few out there. let me know if u see any flaws in my wiring sceam
