Elliotmf

Hello Everyone,

2006 997 Coupe

Not often but sometimes while driving/shifting
the car is not responding to the gas pedal


any ideas ?

Petza914

Brake switch or throttle body.

Lawrencejuliano

+1 to the brake switch. I picked up my 06 C2S a couple of weeks ago and had the intermittent unresponsive throttle (which frightened me at first). Long story short, ~$20 Brake Switch from Porsche and five minutes of work and it was solved. I believe it has something to do with the PSM cutting the throttle because of strange signals from the faulty brake switch.

roadie13

If it's the stability management cutting the throttle/applying the brakes then you should see some blinking lights on the dash too.

Petza914

Corrsct. It's a safety thing so that you can't end up in a situation with a runaway pinned throttle pedal (physically or electronically) that the brakes can't override. Even at full throttle, stepping on the brake pedal shuts things down more than just the braking force applied does.

snaphappy

I did both. Fixed everything!! Not expensive and easy to DIY

ajayabb

I had a bad wheel speed sensor when this problem first developed for me in my 2005 997.1. Problem never threw codes nor did dash light up. Took forever to diagnose too

ttreat

Is the car manual or auto?

I have heard of the e-gas pedals failing causing loss of sensitivity at the low end.

David Berry

In my previous 997.1 2005 C2, the throttle body had a short, resulting in the car going into “limp mode”. No response from gas pedal. That, along with needing a new clutch, initiated a trade for my current 2010 C2S. Porsche dealer quoted huge number to replace the TB. I balked...

Petza914

That's crazy. Throttle body is 4 bolts and 1 electrical plug once the airbox and hose are out.