C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

85 air vacum system front engine pigtail

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Old Aug 24, 2019 | 06:55 PM
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Default 85 air switching valve front engine pigtail


my pigtail to the air switxh valve on top of the air condition compressor the one they all the vacuum lines go to has two pigtails one of the bottom one of the top what color wire is the power for the one on the top because of the disinagrated it and I lost it and I need a new pigtail see the pictures below it's the top motor


pigtail

Last edited by 85vegasvette; Aug 25, 2019 at 07:30 PM.
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Old Aug 25, 2019 | 08:25 AM
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Originally Posted by 85vegasvette
my pigtail to the air switxh valve on top of the air condition compressor the one they all the vacuum lines go to has two pigtails one of the bottom one of the top what color wire is the power for the one on the top because of the Centigrade it and I lost it but I have a new pigtail and I don't want to cross the wires
If I understand what you're asking, I can look at mine tonight and throw a multimeter on them for you...

Or, better yet, you can do this with your AIR system and save yourself some time:


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Old Aug 26, 2019 | 07:07 AM
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I think I understand what you're asking - (on my 85) the lower air switch solenoid - 2-wires, pins A and B. both have a pink, black stripe wire. pin A is power in, and eventually goes back to the fuse block. pin B, again, pink, black stripe goes to the ECM. the upper air solenoid switch - 3-wires, pins A and B. pin A, power in, same as the lower solenoid. pin B has two (2) brown wires - one side to the ALCL connector, and the other brown wire to the ECM. reference wiring diagram, FSM section Electrical Diagnosis, page 128. hope this helps....


Last edited by Joe C; Aug 26, 2019 at 07:36 AM.
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Old Aug 26, 2019 | 10:13 AM
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Yes thank you
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