[tran2100]

I have 92 Honda prelude, the ac ii sometime on for a while then the compressor clutch is disenge then working again. I checked the freon is OK around 35psi, pulled and checked clutch Relay?? It looks OK and ran fine for 8 hrs then clutch disengage and I have to turn off AC switch then back on and OK. I am not sure the relay can cause a problem and how to jump it to test and wohdering the pressure swith how:mad: it works and relative to compressor clutch relay. Any inputs and advise will be appriciated. Tran

[CaptainRich]

I have 92 Honda prelude, the ac ii sometime on for a while then the compressor clutch is disenge then working again. I checked the freon is ok around 35psi, pulled and checked clutch Relay ??? it looks ok and ran fine for 8 hrs then clutch disengage and I have to turn off AC switch then back on and ok. I am not sure the relay can cause a problem and how to jump it to test and wohdering the pressure swith how:mad: it works and relative to compressor clutch relay. Any inputs and advise will be appriciated. Tran

Power to the relay is on the Yel/Blk wires (2)
PGM-FI Control is on the Red/Blu wire.
The Switched terminal is the Red wire. This goes directly to the Thermal Protection built into the compressor.
With the gauges connected and the vehicle running, jump either of the Yel/Blk wires to the Red and the system should operate. Avoid leaving this jumper in and keep it from grounds.
Remember the compressor has built-in Thermal protection, and that may be going open.

[tran2100]

Thank so large for input and I'll try it this weekend and get back result with you CAPTAINrICH.. TRAN