i'm mocking up my tpi setup before i go ahead and put it on my car because i want to be as sure as i can that it'll just bolt right up without any problems. but i need some help identifying some of the connectors.


1
2
3
4
5
6
7
8
9

 

#1 is ac compressor(assuming the first 2 pics are the same connector)
#2 is iac
#3 im not sure it would be better too know the wire colors
#4 not sure
#5 egr solenoid?
#6 oil pressure sending unit
#7 ac switch that goes on the ac line
#8 It kinda looks like aalternator but Im not sure I cant recall if its on that harness or not(its been a while since ove had mine apart

 

#3 is the TCC solenoid
#8 looks to be the A/C pressure switch
#5 looks like the alternator
#6 looks like the EGR vacuum solenoid
#7 looks to be the brake pressure switch that connects on top of the proportioning valve.
All these are based on a speed density harness and a MAF harness may be different.

 

ok my turn...
3. TCC or IAC
4. reverse lights
5. ???
6. EGR
7. oil pressure
9. coolant fan

 

Wire colors are going to help a lot. Looks like a Firebird '86 TPI setup, maybe '85.

 

yeah it's off of an '86 i took it all off the car myself but i wasn't smart enough to label all the connectors

 

Just list the wire colors in each of the "mystery" connectors, and we'll get you very close to solving the mystery.

 

I believe 6 is the IAT / MAT. Remember you have a 12in extension between that and the normal connector under the PLenum. Its wires are tan and black just like the IAT / MAT ones. I think 4 is the VSS on the firebirds elect speedo. 9 is the fans.

 

'86 didn't have an electronic speedo though right? 87 and up i thought?

 

'86 Firebirds had the electronic speedometer. Mine does.

#1. TPI Overview
#2. Alternator Field
#3. Same as #2
#4. Transmission Connector (TCC Solenoid and Top Gear Switch)
#5. Main ECM/Fuel Pump Power (if both wires are orange)
#6. ???
#7. MAT Sensor (under plenum, tan & black wires) or EGR Solenoid (gray & black/pink wires)
#8. Oil Pressure Sensor (for gauge) or Brake Warning Switch (depends on wire colors)
#9. A/C High Pressure Cutout Switch
#10. Cooling Fan Motor