pablo_vr6 0 Posted December 23, 2004 my bosses car again. has a serious problem at low revs. if he idling at the lights and FLOORs it hard the car just sits for a few seconds then slowly begins to rev. once the revs hit around 2k it starts to come to life and accelerate then the boost kicks in ok and its normal. until acting normal it takes maybe 5-10 secs. recently had the lambda and hall sensors replaced. any ideas anyone? turbo seems to be fine once it gets going but the lift is atrocious from idle. any suggestions appreciated. Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted December 23, 2004 Probably the damn MAF sensor. It's probably an OBD2 ECU so you can check the MAF with VAG-COM. What about plugs etc, when were they last changed? Quote Share this post Link to post Share on other sites
pablo_vr6 0 Posted December 23, 2004 we had it on vagcom pre lambda/hall change and they were the only codes it was showing. Quote Share this post Link to post Share on other sites
h100vw 0 Posted December 23, 2004 I have heard at Awesome that the diesel MAFs fail and don't show up in the fault reader. Could be the same with this one? Maybe the throttle body needs adapting if it is a fly by wire model. Boost sensing pipe split/damaged. Gavin Quote Share this post Link to post Share on other sites
pablo_vr6 0 Posted December 23, 2004 might try and disconnect the MAF and if it runs no worse get one from a scrappy to test or something. Quote Share this post Link to post Share on other sites
Supercharged 2 Posted December 23, 2004 Audi do most MAF's for £60 exchange i think as they are so prone to failure... Quote Share this post Link to post Share on other sites
pablo_vr6 0 Posted December 23, 2004 hmm thats not bad - will try it out for him and see how it goes. cheers all. anything else I can check tho while im under there? Quote Share this post Link to post Share on other sites
