Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: 88XR7 on October 22, 2007, 02:30:51 AM

Title: What goes where? **sensors**
Post by: 88XR7 on October 22, 2007, 02:30:51 AM
I've got 3 homeless plug-ins.

2 are on the end of the wiring harness...(passenger side) I know one of the two go into the heater core pipes, which are gone. However, I am unaware of the location of the other.

The last one is near the beginning of the wiring harness...(driver side) I believe they are all CTS but I am not %100 positive on that.

Would they all be needed to have the car running?
Is there a way to 'bypass' them or trick the car into thinking everything is fine?
Title: What goes where? **sensors**
Post by: Chuck W on October 22, 2007, 06:48:25 AM
Pics.....
Title: What goes where? **sensors**
Post by: vinnietbird on October 22, 2007, 06:54:52 AM
There are two plugs near the Master Cylinder that are used for pulling codes.they just hang there and do nothing until then.
Title: What goes where? **sensors**
Post by: thunderjet302 on October 22, 2007, 02:05:18 PM
One might be for the engine coolant temp sensor for the computer. The sensor was originally located on the heater pipes.
Title: What goes where? **sensors**
Post by: V8Demon on October 22, 2007, 02:31:45 PM
Perhaps this will help
Title: What goes where? **sensors**
Post by: 88XR7 on October 23, 2007, 01:09:21 AM
Quote from: V8Demon;183906
Perhaps this will help

OMG, I think I have to say, I love you?:D
Dude, thank you SO much!!:hick: :burnout:
Title: What goes where? **sensors**
Post by: 88XR7 on October 23, 2007, 01:25:37 AM
Ok so, #12 the Canister Purge Solenoid and #18 the Engine Coolant Temperature Sensor are not plugged.

#1. I am fairly positive the CTS will cause problems, but what can I do about that? I have removed the heater core pipes.

#2. Will the Canister Purge Solenoid cause any problems? Sounds like smog-stuff, and that has been removed as well.
Title: What goes where? **sensors**
Post by: Innes on October 23, 2007, 08:01:25 AM
nice paul i will save
Title: What goes where? **sensors**
Post by: Chuck W on October 23, 2007, 08:27:53 AM
Quote from: 88XR7;184057
Ok so, #12 the Canister Purge Solenoid and #18 the Engine Coolant Temperature Sensor are not plugged.

#1. I am fairly positive the CTS will cause problems, but what can I do about that? I have removed the heater core pipes.

#2. Will the Canister Purge Solenoid cause any problems? Sounds like smog-stuff, and that has been removed as well.


1)  Yes, the ECT MUST be plugged in.  That is the sensor for the ECU.  Car won't run w/o it. 

2) No.
Title: What goes where? **sensors**
Post by: 88XR7 on October 23, 2007, 02:09:23 PM
Quote from: Chuck W;184079
1)  Yes, the ECT MUST be plugged in.  That is the sensor for the ECU.  Car won't run w/o it. 

2) No.


[SIGH] The car will be running today if this is the problem.

Chuck, what can I do in this situation since I have the heater core lines removed?
Title: What goes where? **sensors**
Post by: TurboCoupe50 on October 23, 2007, 02:46:36 PM
The ECT is not necessary to make the engine run, but to run as it should it's defiantly needed...

I take it you've eliminated the hard heater lines and gone just with hose??? If so, find the fitting from a car that had the automatic climate control, there will be a fitting for the EATC sensor near the heater core outlets that should work...

OR if you are saying you eliminated the heater hookup all together screw it directly into the intake...

Tom
Title: What goes where? **sensors**
Post by: 88XR7 on October 23, 2007, 02:53:16 PM
Quote from: TurboCoupe50;184137

OR if you are saying you eliminated the heater hookup all together screw it directly into the intake...

Tom



I did.
Where am I too screw it into the intake?
Title: What goes where? **sensors**
Post by: TurboCoupe50 on October 23, 2007, 09:05:49 PM
Quote from: 88XR7;184139
I did.
Where am I too screw it into the intake?


Install it any where there's water...
Title: What goes where? **sensors**
Post by: 32VFoxBird on October 23, 2007, 09:10:49 PM
the threads arent the same size. i believe the coolant temp sensor uses metric threads, and the manifold uses SAE. you'll need to find an adapter pipe fitting. it will screw in where the heater tubes unscrewed from.(near the t-stat housing)
Title: What goes where? **sensors**
Post by: V8Demon on October 24, 2007, 11:40:08 AM
Glad to see you figured out what the plugs were for!;)
Title: What goes where? **sensors**
Post by: 88XR7 on October 25, 2007, 12:08:09 AM
Quote from: 32VFoxBird;184200
the threads arent the same size. i believe the coolant temp sensor uses metric threads, and the manifold uses SAE. you'll need to find an adapter pipe fitting. it will screw in where the heater tubes unscrewed from.(near the t-stat housing)


This is deffinately not true, the location where the lines plugged in is MUCH larger then the threads for the sensor.
Title: What goes where? **sensors**
Post by: 32VFoxBird on October 25, 2007, 12:20:47 AM
i know this. i didnt mention it was larger, due to the fact its obvious. you'll need to find an adapter, or look in some junkyards for a different version. some were a 90* elbow for the heater hose, and also had threads for the sensor.

if browse ebay for "302 intake manifold", someone is bound to have a pic of it.
Title: What goes where? **sensors**
Post by: 88XR7 on October 25, 2007, 09:44:50 PM
Ahh, alrighty...
I just don't understand why she won't run....
Shes firing and shooting fuel...
I just don't get it...
There should be nothing stopping her if she has those 2...
Title: What goes where? **sensors**
Post by: 32VFoxBird on October 25, 2007, 10:11:45 PM
maybe you should try not calling it a she. :D
Title: What goes where? **sensors**
Post by: Chuck W on October 25, 2007, 11:28:56 PM
Is the ECT sensor at least plugged in?  I know on the 2.3T's, if you have the ECT unplugged, more than likely the car won't start...period.

You should pay better attention to what things are before you start ripping them apart.
Title: What goes where? **sensors**
Post by: 88XR7 on October 26, 2007, 01:06:30 AM
Quote from: Chuck W;184660
Is the ECT sensor at least plugged in?  I know on the 2.3T's, if you have the ECT unplugged, more than likely the car won't start...period.

You should pay better attention to what things are before you start ripping them apart.


Yes, the ECT is plugged in.

Chuck, I did, but however with moving and going through a divorce forcing me to leave the car at a nearby friends house make it hard to recall exactly where everything goes...


On that note, there is a relay near my airbox, Seems to be she keeps on clicking.
Does anyone know what that relay is for?
I can't tell by the two diagrams that I have.
Title: What goes where? **sensors**
Post by: 32VFoxBird on October 26, 2007, 07:42:38 AM
how are you verifying you have spark? if you're getting spark and fuel into the cylinder and it still wont start, you're timing is off.
Title: What goes where? **sensors**
Post by: 88XR7 on October 26, 2007, 11:06:45 PM
Quote from: 32VFoxBird;184691
how are you verifying you have spark? if you're getting spark and fuel into the cylinder and it still wont start, you're timing is off.


Timing is correct, went by the valves to verify it not being 180* out.
I'm checking spark by pulling the wire and connecting it to an old plug that I have and watching it arc.

After turning the motor over, should fuel spray like crazy out of the fuel lines (when burping it) or should it just dribble out?
Title: What goes where? **sensors**
Post by: jcassity on October 28, 2007, 03:12:24 AM
you should have a mess if you just got done cranking and you push in the shrader valve pin.

if you dont,, you might have just found your problem.

Also,, if your parked in such a way on a bank, sideways or sloped like a recent mustang i worked on,, and you've been cranking and cranking with about a 1/4 tank or less,
then,,,,
push the car to level ground and recrank.  With low fuel and being parked on a slope, you can empty out the resivoir the fuel pump sits in.
Title: What goes where? **sensors**
Post by: 88XR7 on October 28, 2007, 03:33:07 PM
Seems like it is a fuel issue then, not much sprays out.
The car is not on a slope, and there is 2~ gallons in the tank.
I'm going to add to the tank and get a can of starting fluid and see where that gets me.