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This is my first winter with the Cayman S. We have had temps below 30F in the morning. It takes about 10-15 min to get the car to mid-point temperature. I have also noticed that the first mile or two (after letting the engine idle for one minute to kick down) the car hesitates under very little throttle. My other fuel injected cars (Altima, 300zx, Infiniti M35) did not show this sluggishness. Do other Caymans exhibit this cold nature? Mine is a Tiptronic, if it matters.
This is my first winter with the Cayman S. We have had temps below 30F in the morning. It takes about 10-15 min to get the car to mid-point temperature. I have also noticed that the first mile or two (after letting the engine idle for one minute to kick down) the car hesitates under very little throttle. My other fuel injected cars (Altima, 300zx, Infiniti M35) did not show this sluggishness. Do other Caymans exhibit this cold nature? Mine is a Tiptronic, if it matters.
I have started mine (Tip also) at around 20-25 F a few times now, and haven't noticed the hesitation you describe. Like you, I let it warm up until it idles down, then I drive it pretty gingerly the first couple of miles (not over 4000 RPMs) until the water temp gauge starts going up, but at least up to 4000 rpms I haven't noticed any hesitation.
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2006 CS Tip (Daily Driver & Part-time Track Toy)
2005 Ford Expedition (to haul the CS)
2006 Lexus RX400h (wifey's)
Gone, but not forgotten: 2002 WRX, 2004 MINI
I park my car in a heated garage at night and when I drive to work in the morning, even with morning air temperatures as low as 17 degrees F., my car doesn't miss a beat, even with a cold (70 degree F.) engine. However with my CS parked outdoors all day at work, beginning with air temperatures from about 40 degrees and below, if I depress the accelerator pedal too quickly on the drive home (until the engine warms up a bit), my car bulks or falls on it's face (a condition that usually indicates that the mixture is too lean for the oxygen rich cold air).
One guess at what's happening is the cold parts of the engine initially absorb a large amount of the combustion heat, leaving a relatively cold combustion chamber temperature. When the combustion chamber is cold, atomization of the fuel /air mix is incomplete hence the bulk or bog. If the fuel injection would compensate with additional fuel, it would probably be remedied.
I assumed everyone was experiencing the same however if the majority of posts indicate otherwise, I will probably discuss it with my dealer. By the way, this condition existed both before and after my APR Flash.
Regards,
Joe
Last edited by josephsdesimone; 10-23-2008 at 04:12 AM.
Thanks for the replies guys. It would appear that my car is not performing like most when cold. I will have to be careful on how I word the condition or the service manager will think that I'm expecting to run a stone cold car at max speed/drivability. I just want it not to bog and be tempermental getting up to speeds of 60 (with light to medium acceleration)until it reaches full operating temperature.
Please keep the feedback coming of how your car performs when cold and where you think the problem may lie. Thanks!
I'm curious, would you please tell me if you have or haven't had your ECU Flashed? Also I installed my IPD Plenum just about the same time that the weather was turning cold; are you using an IPD Plenum?
Thank you,
Joe
Plenum
The plenum is the piece that goes between the Cayman throttle body and the intake runners. The factory piece is a long black plastic tube with a divider down the middle. There are aftermarket replacements which are designed to allow the air to flow easier/faster into the engine and increase horsepower and torque.
Last edited by josephsdesimone; 01-07-2008 at 04:46 AM.
I'm curious, would you please tell me if you have or haven't had your ECU Flashed? Also I installed my IPD Plenum just about the same time that the weather was turning cold; are you using an IPD Plenum?
Thank you,
Joe
Joe,
My Cayman S is bone stock - no mods at all. My car is kept in my garage, but it is not climate controlled. The weather here has warmed up the last few days so my cold-natured crockodile is very happy once again. But, when temps dip again (I think next week) I will have to see whats going on and possibly schedule an appointment.
Thanks,
Steve
Plenum
The plenum is the piece that goes between the Cayman throttle body and the intake runners. The factory piece is a long black plastic tube with a divider down the middle. There are aftermarket replacements which are designed to allow the air to flow easier/faster into the engine and increase horsepower and torque.
Colder weather operation
