did a maf coversion on this car a while back and wondering if the ecc orange wire on the wot relay is in the same position(pin 54) for a years. found 88 thru 93, cant find 87
Probably can't see the blue, anymore.
The ECU grounds this.
It should be the same for '87, pin 54. ECU for both was the same Speed Density. Calif was MAF for '88.
You can test the relay without turning the engine on.
Turn ignition ON, Turn the AC on & off. You can now hear the compressor clutch engage & disengage.
Remove the connector & substitute a test light.
Sounds like the relay coil is bad.
Disconnect the relay from the connector, put ohmmeter across where Red & Orange Lt Blue were, should read 100-200 ohms, not infinity.
The relay is "special" because it mates to the Ford connector & has an attached mounting bracket.
If the cheaper one plug in to the factory connector, you probably can use that.
Give us pics.
I just got my Megasquirt ECU wired to perform this function.
The connector insulation to this relay was in bad shape on one wire, was able to tape it up. First time it was removed in 30 years.
Found the 2 relays on Rock Auto. $16.07 & $20.89
1988 GT, 57k mi, Orig Owner
ProCharger P600B, FRPP Headers, Flowmaster F2, 3G Alt, Mk8 Fan/DCC, 3.55's, Prog Springs, ST Brace, G/Trac Bar, Subfrms, UCA, LCA, FCA, Tokico 5-ways, C/C Plates, CSA 16x8, Bridgestone RE760 Sport 225/50R16, Megasquirt DIYPNPF60, LC2 WBO2, C&L76mm MAF w/LU47's