2007 Golf 5 R32, BUB engine.
I am fitting an FIC8 to this car which has had a turbo conversion in the past and also at least two different types of piggy back controller plus a remapped ECU and I have had to sort out a LOT of very poor wiring and strange bodges such as the AMM air temp wire having been disconnected and run off to a dead end!
This uses the 07D 906 461 Air Mass Meter (AKA MAF) which is a Bosch 0 280 218 073, a Hot-film air mass meter HFM-5-8.5. I cannot establish whether this is an analogue or digital AMM and I am struggling to make sense of the output from Pin 5, which I believe is the output.
With the signal going straight in to the FIC, the ECU immediately flags up a MAF error so Pyng Thai at AEM suggested a pull down resistor after studying the output of the AMM and the output from the FIC but even making sense of the signal has me puzzled as I have never had to do this before, does anyone have any advice?