HPT Standard & LM1 Wideband
02-16-2009, 04:56 PM
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Formerly Low_LQ4 - 6/6/10
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HPT Standard & LM1 Wideband
Has anyone routed the EGR signal to work with the wideband if you have pics or info it would be great? Thanks
Last edited by Low_LQ4; 02-16-2009 at 11:53 PM.
02-17-2009, 07:22 AM
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I believe its like pin 55 out of the PCM connector but let me check for sure. You know how to setup the custom PID for it in hptuners dont you? If not i could give you a hand with that too if you would like.
What year is your truck?
What year is your truck?
02-17-2009, 02:11 PM
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It's a 2000 GMC Sierra . Any info would be great I'm fresh to this so the more info the better.
I don't even know how to set it up. Thanks for the help A.J.
I don't even know how to set it up. Thanks for the help A.J.
02-17-2009, 10:38 PM
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I have my ebp sensor wired threw my egr.
If yours is a 2000 the you will already have the harness. You could tie into the harness, or splice near the pcm. ether way will work... You will need to "turn on" the egr in the tune, just make sure all of your egr modifier tables are zeroed out.
You will have to log EGR voltage, and create a custom PID...
Here is the formula for the pid (or any sensor)
volts / (voltage range/Device range) + (Minimum value of device range)=AFR
I'll get you wire colors and pictures tomorrow if you need them...
If yours is a 2000 the you will already have the harness. You could tie into the harness, or splice near the pcm. ether way will work... You will need to "turn on" the egr in the tune, just make sure all of your egr modifier tables are zeroed out.
You will have to log EGR voltage, and create a custom PID...
Here is the formula for the pid (or any sensor)
volts / (voltage range/Device range) + (Minimum value of device range)=AFR
I'll get you wire colors and pictures tomorrow if you need them...
02-18-2009, 02:39 AM
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Formerly Low_LQ4 - 6/6/10
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I have my ebp sensor wired threw my egr.
If yours is a 2000 the you will already have the harness. You could tie into the harness, or splice near the pcm. ether way will work... You will need to "turn on" the egr in the tune, just make sure all of your egr modifier tables are zeroed out.
You will have to log EGR voltage, and create a custom PID...
Here is the formula for the pid (or any sensor)
volts / (voltage range/Device range) + (Minimum value of device range)=AFR
I'll get you wire colors and pictures tomorrow if you need them...
If yours is a 2000 the you will already have the harness. You could tie into the harness, or splice near the pcm. ether way will work... You will need to "turn on" the egr in the tune, just make sure all of your egr modifier tables are zeroed out.
You will have to log EGR voltage, and create a custom PID...
Here is the formula for the pid (or any sensor)
volts / (voltage range/Device range) + (Minimum value of device range)=AFR
I'll get you wire colors and pictures tomorrow if you need them...
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02-20-2009, 10:29 PM
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O.k.. In 2000 you should have EGR....
You are looking for the brown wire going to this plug.
There are five wires total. Three of which are for the EGR valve position sensor. The other two are used to operate the valve. The three for the sensor (which would the three you would use to run a aftermarket sensor) are Brown (sensor return), Grey (5 volt ref), and Purple (ground).
Sense your wide band does not need the 5 volt ref or ground wires, you will only need to tap into the brown wire.
Once you got the wire connected to your wide band output, all you need to do is log the pid. EGR Position (V).
*Note* You must have the EGR enabled in your tune for this to work, The PCM will not "look" for the EGR position voltage if it doesn't think it has EGR. Also be VERY sure non of the EGR tables have any values in them ie. The EGR spark correction table
I'll post up a bit later how to convert the raw EGR voltage pid into a Wide band value using the formula I posted above...
You are looking for the brown wire going to this plug.
There are five wires total. Three of which are for the EGR valve position sensor. The other two are used to operate the valve. The three for the sensor (which would the three you would use to run a aftermarket sensor) are Brown (sensor return), Grey (5 volt ref), and Purple (ground).
Sense your wide band does not need the 5 volt ref or ground wires, you will only need to tap into the brown wire.
Once you got the wire connected to your wide band output, all you need to do is log the pid. EGR Position (V).
*Note* You must have the EGR enabled in your tune for this to work, The PCM will not "look" for the EGR position voltage if it doesn't think it has EGR. Also be VERY sure non of the EGR tables have any values in them ie. The EGR spark correction table
I'll post up a bit later how to convert the raw EGR voltage pid into a Wide band value using the formula I posted above...
Last edited by Wilde Racing; 02-20-2009 at 10:38 PM.