Car has problems starting in cold weather - mechanic changed one of the fuel pumps, said the fuel pressure was too low and it cost me $600. It still sometimes takes 10-20 key turns and (occasional) gas pedal flutters to get the thing going, even after taking it back to him several times. He claimed that the car doesn't have a cold start valve, even though my Bently says there should be one, and sure enough, there isn't. Where it's supposed to be, there's just this round 1/2 thick cover thing on a triangular plate attached to the intake manifold with three bolts and connected with a hose and a cable to two other things (I'm clearly not an informed owner). So why don't I have a cold start valve, should I, is that why I have problems starting, and what is the thing that's there? Sorry for the floundering, but this is driving me crazy, not to mention hurting my starter. Thanks for any help.