31-01-2014, 05:53 PM
That's exactly how the EDC15 VW PDs do it when you unplug the MAF sensor, they have VNT turbos, so therefore have MAP and MAF sensors, but use the MAP sensor when the MAF sensor is in unreadable - they do MAFless tunes also - I need to look into how they do it, that'd give us a good idea.
Though you said IIRC you'd changed the wiring on the MAF to accept the 0-5v MAP sensor - did you install the MAP sensor in the place that the 110s have it? There should be some switches to enable MAP Smoke Limitation *and* use it for boost control at the same time.
Should only need 1 MAP sensor then.
"VNT" control isn't a something you enable in the ECU like most people assume, you use all the PID control maps that the 110HDis use, but you have to completely re-do them - it's the same thing, but just controlling something totally different, thankfully there's lots of EDC15 ECUs out there that use VNT turbos that we can yoink calibrations from - at least for a starter point.
Though you said IIRC you'd changed the wiring on the MAF to accept the 0-5v MAP sensor - did you install the MAP sensor in the place that the 110s have it? There should be some switches to enable MAP Smoke Limitation *and* use it for boost control at the same time.
Should only need 1 MAP sensor then.
"VNT" control isn't a something you enable in the ECU like most people assume, you use all the PID control maps that the 110HDis use, but you have to completely re-do them - it's the same thing, but just controlling something totally different, thankfully there's lots of EDC15 ECUs out there that use VNT turbos that we can yoink calibrations from - at least for a starter point.
