relay identification
05-04-2013, 09:17 PM
#1
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Location: colorado
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Car: 84 Camaro, 90Firebird, 87Transmaro
Engine: custom 5.7, 5.0 , 6.5 Turbo diesel
Transmission: 4spd, auto, auto
Axle/Gears: 2.77 posi
relay identification
I need to identify these relays in the image this was an 84 z28 high output carbureted so it didn't have an electronic fuel pump and i am pretty sure it didn't have a MAF so what are these?
05-07-2013, 10:17 PM
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Car: 84 Camaro, 90Firebird, 87Transmaro
Engine: custom 5.7, 5.0 , 6.5 Turbo diesel
Transmission: 4spd, auto, auto
Axle/Gears: 2.77 posi
Re: relay identification
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05-08-2013, 04:19 PM
#3
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Re: relay identification
I can't see the photos, but there are several relays that deal with everything from your head lamps to a/c; where is it located on the car? If you have the stock carb setup, it's unlikely that the relay is for the engine control or emissions systems.
05-11-2013, 12:44 AM
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Car: 1984 Trans Am
Engine: 305 L69 (E4ME)
Transmission: NWC T5 1352-072
Axle/Gears: 3.73 (6HS)
Re: relay identification
I have been working on the same issue. I have a factory service manual and here is what I came up with after hours of research. I have a 84 carb'ed firebird that originally had a hood louver.
First here is your picture. I cannot see the wires, but it is fairly close to mine.
#1: MAP (Differential Pressure Sensor). There is also a Barometric Pressure towards the passenger side, along the top of back of engine compartment. It is also a MAP.
#2: Throttle Kicker Relay or Idle Speed Control (14039663). Wire Colors: blue, black, pnk/blk, brn/white, green. Five wires total
#3: Fuel Pump Relay (14078902). I know it does not make sense for a carb'ed car, but it is the only relay that matches the wire color on the schematics. The wire color is org/blk, purple/white, blk/white, tan/white. It is supposed to be tied to the fusebox: org/blk = 10 amp F Pump fuse & purple/white = 3 amp crank fuse.
I thought it was the ac control relay, but the schematics show those wires as pnk/blk, dk blue, dk grn, dk grn/white. Also, on the V8's instead of the ac control relay it shows the pressure cycling switch controlling the power to the a/c compressor. I also checked out headlight relays, but nothing matched the colors.
#4: Coolant Fan Relay: wire colors: red, blk/pnk, brn/wht, dk grn
#5: Electronic Spark Control
Here is a picture of what is on my car:
#1: MAP (Differential Pressure Sensor).
#2: Electronic Spark Control
#3: Coolant Fan Relay
#4: Hood Louver Vacuum Switch
#5: Throttle Kicker Relay or Idle Speed Control (14039663)
#6: Fuel Pump Relay (14078902)
Later....
First here is your picture. I cannot see the wires, but it is fairly close to mine.
#1: MAP (Differential Pressure Sensor). There is also a Barometric Pressure towards the passenger side, along the top of back of engine compartment. It is also a MAP.
#2: Throttle Kicker Relay or Idle Speed Control (14039663). Wire Colors: blue, black, pnk/blk, brn/white, green. Five wires total
#3: Fuel Pump Relay (14078902). I know it does not make sense for a carb'ed car, but it is the only relay that matches the wire color on the schematics. The wire color is org/blk, purple/white, blk/white, tan/white. It is supposed to be tied to the fusebox: org/blk = 10 amp F Pump fuse & purple/white = 3 amp crank fuse.
I thought it was the ac control relay, but the schematics show those wires as pnk/blk, dk blue, dk grn, dk grn/white. Also, on the V8's instead of the ac control relay it shows the pressure cycling switch controlling the power to the a/c compressor. I also checked out headlight relays, but nothing matched the colors.
#4: Coolant Fan Relay: wire colors: red, blk/pnk, brn/wht, dk grn
#5: Electronic Spark Control
Here is a picture of what is on my car:
#1: MAP (Differential Pressure Sensor).
#2: Electronic Spark Control
#3: Coolant Fan Relay
#4: Hood Louver Vacuum Switch
#5: Throttle Kicker Relay or Idle Speed Control (14039663)
#6: Fuel Pump Relay (14078902)
Later....
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