85miles wrote:
> My 98 civic EX has this weird problem
>
> I start the car (at any time whether its cold or not) and begin to
> drive. After about 30 seconds the car starts to shudder or hesitate,
> as if it is suffocating or not getting enough fuel.
>
> It is most noticeable with my foot just lightly pressing gas, if I
> floor it the problem quickly goes away until I shut off the car again
> and re-start it.
>
> It happens every time I restart the car, as If theres air in the gas
> line which enters the injectors at some point causing this problem.
>
> The check engine light came on, and I had it scanned for this reading
> Code: P1457 EVAP leak.
>
> What could it be? Does anyone know this code?
>
> I think it could be a control valve or something near the gas tank...
> almost like the valve is not fully closing when i shut off the car
> allowing air to enter the line? Does this sound right?
>
> Ive read somewhere that this problem can be caused when you over fill
> the gas tank, which i have done a few times since buying this car in
> august 07, though I don't overfill it anymore.
>
> One other thing I have noticed with my car, only when the car is cold
> that when I release the clutch going into first the car shutters a lot
> no matter how slow or easy I pull out the clutch. I have also noticed
> that sometimes shifting from first to second or second to third I
> think my clutch is slipping (doesn't do it all the time though). Like
> it keeps reving sometimes even with the clutch fully out. Could this
> be my friction plate going? Or may it be tied to the above problem?
>
> Thanks for all your help in advance!
>
----------------------------

It would help greatly to know your MILEAGE, but here's a couple guesses:
Your Throttle Position sensor may be shot, especially if you have
CRUISE. You probably need a bottle of injector cleaner. You likely have
some AIR in your cooling system. Fill your reservoir to MAX three days
in a row. If you need to add a second time, you had air. If it's
impossible to drive slowly in first gear without things getting 'jumpy'
at a certain RPM (same RPM as highway speed) your TPS is shot. See eBay.

'Curly'