Holmesy Posted May 4, 2005 Report Share Posted May 4, 2005 Hello there! You all seem like a knowledgeable bunch so I wonder if you can help me. Here goes, I have a 2001 Golf Mk4 GT TDi 115 with 60Km on it. It seem to go a bit flat after 3200rpm. That was before I had it remapped. Ask a guy (Jamie Jenkins,South Wales) to come and remap it and have a look. He said that it definitely didn't pull quite right past 3G but that remapping it to see if the problem was still present. Which it was. The Power increase was very noticable and I started to get slight clutch slip when heavily laiden but still flat after 3200. There are no error codes on the VAG-COM software and VW had a look and told me that there were no error codes, which I had told them that I already knew (thanks VW). So they couldn't help. Its had the MAF checked by VW as well and that is fine. All the filter have been changed and I am at a bit of a loss! So.... Could it be a blocked CAT? Should I try some injector cleaner? Should I book it into a specialist? Any good specialists around Gloucestershire? Should I burn the bloody thing? Any comments or help would be greatly appreciated. Sorry for the long post. Holmesy Link to comment Share on other sites More sharing options...
Mollox Posted May 4, 2005 Report Share Posted May 4, 2005 Try unplugging the MAF and going for a test drive. Dodgy MAFs don't always produce low/high signal codes and properly diagnosing one is a lengthy process but this is an easy test you can try out at home Link to comment Share on other sites More sharing options...
shao_khan Posted May 5, 2005 Report Share Posted May 5, 2005 Like he said - sounds like it could just be a dodgy MAF. As for the clutch slip - depends how the remap was done but it is possible that you are now developing more torque than the clutch can really handle. Link to comment Share on other sites More sharing options...
Holmesy Posted May 5, 2005 Author Report Share Posted May 5, 2005 Ok I have tried unplugging the MAF. The cars performance dropped dramatically but it was like driving the car without a turbo. The revs climbed progressively and smoothly up to about 4000 where it started to die off which is where I would expect it to. So I don't know what that signifies. I have also previously tried a friends MAF in my golf and the car performed the same. When VW checked the MAF they said that it was "with tolerance." Has anyone every had a problem like this? Many thanks for your help. Holmesy Link to comment Share on other sites More sharing options...
PDMaster Posted May 9, 2005 Report Share Posted May 9, 2005 leaking / or incorrectly fitted vacuum pipe mate, or the N75 Valve. T Link to comment Share on other sites More sharing options...
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