Reduced Engine Power - limted to 11mph

[Paul]

You need to reset your egas.

Turn car off

Turn ignition on (Do not start) (DO NOT TOUCH THE GAS PEDAL during this procedure)

Wait about a minute (you'll hear the throttle motor run in the engine compartment)

Turn key off for at least 30 seconds.

Start car and see if it's fixed.

[BobX]

Thanks for the suggestion, Paul. I tried what you posted and after sitting for several minutes (4 to 5) I never heard the throttle motor. I'm guessing your suggestion has something to do with the electronic throttle control and learning minimum position (accelerator pedal or throttle blade?). Regardless, I tried a couple times and could not fix it. Any other suggestions would be appreciated. I even tried disconnecting the battery for several hours. Thanks.

[Paul]

Time to check for faults in the DME.

[Steve Tinker]

Did you fully charge the battery (over 12 hrs on a charger) before trying to reset the e-gas?
If you try what Paul suggests without a fully charged battery (~ 12.6 v at the terminals) you are wasting your time as the DME is very voltage sensitive....

[jmatta]

Time for a new battery...buy a maintainer while you're at it. You can't let these cars sit and drain the battery...causes all sorts of problems, as you're finding out.

[BobX]

Thanks for all of the help, guys. How do I check the codes on DME, Paul? Is that different from engine trouble codes? I've had the battery charged and still not getting any success. I still do not hear the throttle body motor. Does it matter if I have the hood up or have the battery charger hooked up? Does the boxster have a hood switch?

[Paul]

Where are you located?

[Jager]

Originally Posted by BobX

Thanks for the suggestion, Paul. I tried what you posted and after sitting for several minutes (4 to 5) I never heard the throttle motor. I'm guessing your suggestion has something to do with the electronic throttle control and learning minimum position (accelerator pedal or throttle blade?). Regardless, I tried a couple times and could not fix it. Any other suggestions would be appreciated. I even tried disconnecting the battery for several hours. Thanks.

While performing the adaptation, keep cycling the key until you hear the motor on the Throttle Body engage (you should be able to hear the motor on the Throttle Body). I have read where this has taken a few turns of the key for some reason. Leave the key on for one minute, then turn the key off and remove from the ignition.