Needle Wobble at Idle

[johnsnow]

At idle my 3.2 05 Boxster S has a slight random wobble (maybe a mm) at 600rpm. It doesnt always happen but say 80% of the time when stopping at lights etc.

Faulty coil pack?

[RFM]

I would start by cleaning the throttle body, a slight wobble every now and than of "maybe" one mm. ( 0.04 in. ? ) seems too little for a ignition related problem. You can always check, with a diagnostic device, for fault codes and actual values to be sure.

[johnsnow]

it does a constant wobble of a couple of millimetres when stopped at lights. If I blip the throttle it stops

[Loren]

it does a constant wobble of a couple of millimetres when stopped at lights. If I blip the throttle it stops

I concur with what RFM said. Clean your throttle body well and it will likely go away.

[johnsnow]

Thanks I have tried cleaning the TB before but I just couldnt remove it following the pedros guide. As a secondary thought is it possible it could just be a worn/old air filter

Edited September 11, 2012 by johnsnow