I've had a problem with my classic FAST system for a while now. Ever since I switched from a PT&E harness to a Caspers harness my wide band does not work. I've tried everything humanly possible to figure it out. I've replaced the wide band, sent the harness back to John, tried two separate WB cables, and sent the ECM to both FAST and Craig Smith (long story). Everything comes back as working. But why isn't it working in my car? The only possibility I can come up with is the PT&E harness has a separate power and ground wires. Where the Caspers is PnP. Could I of lost a ground or power to the wide band some now? Any ideas? 
