iwcham1979 Posted August 17, 2019 Report Share Posted August 17, 2019 Hi guys. I have noticed a kind of a droning noise at about 1800-2000rpm on my 3L that has persisted ever since it got converted to manual and had a tune. I am almost sure it was not there before the conversion. My egr is deleted and ASV is not working. It's strictly engine related, not having anything to do with tyres or bearings (which are all new btw) The drone is louder if the strain on the engine is greater, but is only noticable in that rev range. Any ideas what might be causing it? Its like there is poor engine insulation.... When driving I always tend to skip the drone by going slightly above the range, but it hurts my economy... Above or below the range the car is super silent...Cheers guys! Quote Link to comment Share on other sites More sharing options...
mk2 Posted August 17, 2019 Report Share Posted August 17, 2019 It could be plenum resonance? How did you convert the car to manual? I guess everything is standard, but the map has been reprogrammed... Tell us how you did the conversion. Here in the UK we're interested in doing it also. No-one has done it here. Quote Link to comment Share on other sites More sharing options...
Sausage Posted August 17, 2019 Report Share Posted August 17, 2019 Maybe your map is too aggressive low down the revs and peak torque is too early or boost is spiking, the gearbox wont like it at all and tend to make noises to tell you. Try the stock map and see of the noise goes away. There is (on the 1.4 tdi at least) a heat shield that can rattle and drone on the gear cables but usually at idle, also PS pipes make a nice noise touching the subframe if not secured right. Quote Link to comment Share on other sites More sharing options...
iwcham1979 Posted September 6, 2019 Author Report Share Posted September 6, 2019 (edited) Hi guys, sorry for the late response.... Haven't figured the drone, but im sure it's exhaust related, because the engine sounds louder than it should the moment i floor it under load. When I am alone there is almost no drone, but when there are say four people and going slightly uphill, then the drone is pronounced.... As far as the conversion is concerned, we used Lupo 1.0 Parts (gear linkage, cables, the shifter) and hooked it up to the original 3L gearbox... Then we had to flash the original Ecu because the car wouldn't even start with its old map... The map we used is a combination of the Lupo 1.4Tdi map and a 3L map (1.4Tdi map with 3L turbo parameters). The car can start and drive with the stock 1.4Tdi map as well, but smokes a lot and has miserable performance because 1.4Tdi has a wastgate turbo, whereas 3L has a variable turbo... This explains the mechanical parto of the swap... Just mute it 😂 Edited September 6, 2019 by iwcham1979 Quote Link to comment Share on other sites More sharing options...
mk2 Posted September 6, 2019 Report Share Posted September 6, 2019 Lots of pics of the conversion...? many people want to convert 3L to regular manual gearbox did you do the map changes? Quote Link to comment Share on other sites More sharing options...
Blue Loop Posted September 7, 2019 Report Share Posted September 7, 2019 7 hours ago, mk2 said: many people want to convert 3L to regular manual gearbox Sometimes, you even find them for sale https://www.anibis.ch/fr/d-automobiles-voitures-de-tourisme--113/vw-lupo,-2001,-206'000-km--29855696.aspx?fts=lupo&view=2&pi=3&fcid=0&pr=1 Quote Link to comment Share on other sites More sharing options...
RAB Posted September 9, 2019 Report Share Posted September 9, 2019 On 9/7/2019 at 12:18 AM, mk2 said: many people want to convert 3L to regular manual gearbox Evidence? How many 3Ls are there in the UK? Many? Why would you want to do it anyway? Just buy a 1.4Tdi - there's more of them for a start. RAB Quote Link to comment Share on other sites More sharing options...
mk2 Posted September 9, 2019 Report Share Posted September 9, 2019 Yes, but so teeny tiny a diesel engine... it'd be interesting. Quote Link to comment Share on other sites More sharing options...
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