I just had a strange problem happened twice today. This am started engine and within 10 seconds SES light was on and the A/C would not kick in. I switched the engine off and restarted the problem remained. About an hour later I started the engine and everything was fine. This evening I started up, all was fine, I switched the A/C off and floored it in 1st gear and at abour 4000 rpm the engine quitor seriously bogged for about 1 second then the SES light came on and A/C would not run, everything else seemen normal. idle was good no stalling. Went home stopped engine and 5 minutes later restarted and again all was well. Any one seen this before? '94 Z M6