Brucielee Posted April 3, 2016 Share Posted April 3, 2016 OK here's another one, by the way I've only had the car for about 6 weeks so still ironing out the creases lol, When I got the car, a4 b6 2.5 v6 tdi quattro, think it's the 163 version, I was told it had been remapped to give better fuel consumption, thought ok it can be done, but doing a bit of poking around the engine and noticed the maf sensor plug not connected, asked the guy I bought it off and he said that the company that done the remap deleted the maf as this was to help fuel economy, I know you can delete the egr and dpf but never heard of a maf being deleted, is it possible and is it a good or bad thing, no lights were on on the dash which makes me think it was deleted although when I reconnected it I noticed my miles left on the dash didn't drop as quick as they normally do, I'd do a 30 mile trip stopping and starting and lose maybe 50-60 miles where as today I done the same trip and only lost 20, which is more realistic, doesn't feel any different in driving response, any ideas as I don't have vcds or know anyone local that could do a test on it with vcds Quote Link to comment Share on other sites More sharing options...
James Posted April 5, 2016 Share Posted April 5, 2016 If you disconnect the MAF the ecu will assume low output and usually therefore low powere/poor economy I would think. Quote Link to comment Share on other sites More sharing options...
Brucielee Posted April 6, 2016 Author Share Posted April 6, 2016 I thought that too James although with vcds lite its code gives a maf sensor short to plus, doesn't see the maf even when it's plugged or not plugged in, there's a revo specialist half an hours drive away so it might be trip there Quote Link to comment Share on other sites More sharing options...
James Posted April 7, 2016 Share Posted April 7, 2016 Yes probably sounds like the best idea to let a specialist take a look. That's definitely an issue with buying cars that have "unknown" remaps on them. You could always get a Revo map on it instead? Quote Link to comment Share on other sites More sharing options...
Brucielee Posted April 7, 2016 Author Share Posted April 7, 2016 I think that's the way to go James, although I'll have to wait a few weeks and get the greyhounds gathered up, for a proper revo remap it's somewhere around £300 as far as I know. Quote Link to comment Share on other sites More sharing options...
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