96 CE LT4 Engine Harness??? Please Help...
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From: Texas
96 CE LT4 Engine Harness??? Please Help...
I just finished up the installation of my Procharger today and there are a few things I still need to button up but I have an Electrical Connector that I cannot figure out where it goes. Its a 3 prong flat connector with a Yellow back and Purple Rubber around the connection part. It has 1 square notch in it on the Clip Side in between the Middle and left hole with the Clip facing up. I will post up a picture but I know for a fact that its not the coil, ign module on the coil, MAF, MAP, IAC Valve, TPS, Inlet Air Temp or Coolant temp because they are all installed already. I know its dumb I dont remember where I took it off from but it happens. Alot of work doing this alone in my garage. Also unless the Opti has 2 connections I know its not that either. Any help would be great! I need to get it hooked up and finish this thing ASAP so I can go have some fun and enjoy it.
Drifting
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From: Canandaigua New York
It would help to know what color the wires are.
I know you said it's not the MAF, but according to this pigtail that's for sale on Ebay...
It's a MAF connector..(that's if the color of the wires is the same)
http://www.ebay.com/itm/LS1-LT1-GM-3-Wire-MAF-Mass-Air-Flow-Sensor-Wiring-Connector-Pigtail-/200740589170
Like I said, having the color of the wires to compare would help.
I know you said it's not the MAF, but according to this pigtail that's for sale on Ebay...
It's a MAF connector..(that's if the color of the wires is the same)
http://www.ebay.com/itm/LS1-LT1-GM-3-Wire-MAF-Mass-Air-Flow-Sensor-Wiring-Connector-Pigtail-/200740589170
Like I said, having the color of the wires to compare would help.
Last edited by Keystring; Nov 1, 2012 at 08:42 AM.
Race Director
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From: Texas
Sure looks like the MAF wiring to me.
There has to be one thing that's unplugged at the front of the engine. There are very few three wire connectors. Nonetheless I'll go from memory and list them all...
IAC - Nope, wrong shape
IAT - Nope, two connectors
TPS - Nope, wrong shape
MAP - Nope, wrong color (MAP connector is green)
CTS - Nope, two wire connector
Opti harness - Nope, more wires, wrong shape
Evap solenoid - Nope, harness in pic won't reach that far
Coil - Similar but different color wires which come out of the ICM harness
ICM - Wrong shape
MAF - ding ding ding, we have a winner
There has to be one thing that's unplugged at the front of the engine. There are very few three wire connectors. Nonetheless I'll go from memory and list them all...
IAC - Nope, wrong shape
IAT - Nope, two connectors
TPS - Nope, wrong shape
MAP - Nope, wrong color (MAP connector is green)
CTS - Nope, two wire connector
Opti harness - Nope, more wires, wrong shape
Evap solenoid - Nope, harness in pic won't reach that far
Coil - Similar but different color wires which come out of the ICM harness
ICM - Wrong shape
MAF - ding ding ding, we have a winner
Last edited by 96GS#007; Nov 1, 2012 at 12:52 PM.
Burning Brakes
Joined: Nov 2010
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From: Crystal Springs MS
It's the MAF connector...just verified by visual on my motor. 
Jim, you beat me to it...he stated he "knew for a fact it wasn't the MAF, etc...". What's he got plugged in there, then?
Jim, you beat me to it...he stated he "knew for a fact it wasn't the MAF, etc...". What's he got plugged in there, then?
Last edited by Phat98; Nov 1, 2012 at 11:59 AM.
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From: Texas
Here is the connector I have going to my MAF Massager/Extension Harness.
Here is the MAF Connector and the MAF Massager/Extension Harness Side by Side. Same Connector.
Here is just the MAF Massager/Extension Connector. Has the one notch on top left and an inner piece on the right. So my MAF has to be correct.
So what is the one I dont have connected??? And WVZR-1, I do not have an FSM. The only thing that throws me is the wires on the Massager match the colors on the harness I have disconnected. Maybe the other plug will also fit.
Here is the MAF Connector and the MAF Massager/Extension Harness Side by Side. Same Connector.
Here is just the MAF Massager/Extension Connector. Has the one notch on top left and an inner piece on the right. So my MAF has to be correct.
So what is the one I dont have connected??? And WVZR-1, I do not have an FSM. The only thing that throws me is the wires on the Massager match the colors on the harness I have disconnected. Maybe the other plug will also fit.
Last edited by 96CollectorLT-Score; Nov 1, 2012 at 12:37 PM.
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From: Texas
The car started with the connections I have minus the mystery plug but ran a little rough but I dont have my Inlet Air Temp hooked up yet. Waiting on the fitting so there is a boost leak. Didn't try really revving or anything so I dont hurt anything.
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Go back to your instructions! The "massager" is an option!!!! There should be information there! The massager is maybe a black box with a male and female connector. It looks like you neglected to put the massager in line as it should be! What is the part# on your massager?
Last edited by WVZR-1; Nov 1, 2012 at 01:03 PM.
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Yeah I know its an option for a 96 model if the tuner takes care of the signal ceiling in the tune. I talked to my tuner (PCM4Less) and he said he took care of that in the tune but it wouldn't hurt to run it since I needed and extension anyhow. I just cut the shrink wrap and seperated the 2 plugs and the wiring all the way down and re wire loomed and taped it all up. That way I didn't have to cut my stock harness.
http://www.procharger.com/catalogvie...l#/Corvette/56
http://www.procharger.com/catalogvie...l#/Corvette/56
Last edited by 96CollectorLT-Score; Nov 1, 2012 at 01:05 PM.
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Well it looks to me like it's intended to be installed "in-line" with the MAF from what I read. Don't know BUT your the guy with the "odd" connector. Where do you have the other connector of the "massager" connected?
I guess it's time for PCM4less to give you a "clue"! I've read where the "massager" is required for a '96MY but since I don't have nor have the desire I surely don't know. If PCM4less says you don't need then all you should have needed was an extension from the black/purple connector to the MAF if it wouldn't reach. The massager would have been "excess baggage"!
I guess it's time for PCM4less to give you a "clue"! I've read where the "massager" is required for a '96MY but since I don't have nor have the desire I surely don't know. If PCM4less says you don't need then all you should have needed was an extension from the black/purple connector to the MAF if it wouldn't reach. The massager would have been "excess baggage"!
Last edited by WVZR-1; Nov 1, 2012 at 01:14 PM.
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From: Texas
The MAF Massager is installed between the Engine harness and MAF Sensor like it should be. Like I said, I had it and got a killer deal on the kit which the Massager came with so I am not out any money. Already had it, thats all. In the earlier post I just meant that possibly the "Mystery Connector" could also fit the MAF and/or Massager. I really just need help on finding the correct location of the connector I need installed. I realize I messed up when I didn't label the connectors. I'm a Jet Engine Mechanic by trade so I am by no means incapable of fixing it. Just need some guidance on where it may hook up. Thanks for the help thus far. Hopefully I will figure this out.
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Go back to your instructions! The "massager" is an option!!!! There should be information there! The massager is maybe a black box with a male and female connector. It looks like you neglected to put the massager in line as it should be! What is the part# on your massager?
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The MAF Massager is installed between the Engine harness and MAF Sensor like it should be. Like I said, I had it and got a killer deal on the kit which the Massager came with so I am not out any money. Already had it, thats all. In the earlier post I just meant that possibly the "Mystery Connector" could also fit the MAF and/or Massager. I really just need help on finding the correct location of the connector I need installed. I realize I messed up when I didn't label the connectors. I'm a Jet Engine Mechanic by trade so I am by no means incapable of fixing it. Just need some guidance on where it may hook up. Thanks for the help thus far. Hopefully I will figure this out.
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That looks like the infamous 96 only timing sensor plug. It plugs underneath the timing chain cover plate.
If I'm correct, you will have fun
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Drifting
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From: colchester CT
That is definitely you MAF connector. I don't know what the other one is. I just checked on my LT4 and it's a perfect match. Not sure how that other one even plugged into the MAF. good luck, curious to know what that other one goes too.
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On my MAF there is both a Slot and a platic prong which matches the plug in the pictures above but the Purple and Black Plug doesnt have the slot for the Platic Prong. I can look into it. It seems I have a MAF Connector and a CPS Plug and I need to sort out which is which. This is all helping though.