Over the past few weeks I have noticed my car has been down on power.
Ran some logs and noticed the mass air flow was reading 225 g/s. This was down compared to the readings I had from when it was first mapped to stage 2 (245 g/s). This got me thinking as I had the battery disconnected for some time whilst I was cleaning the intake valves and working on the car the past couple of weekends.
I connected my Revo SPS and pulled the settings from the ECU, they read Boost 1, Timing 0 and Fuel 0.
This explains why the car was down on power. They must have reset when the battery was disconnected for a period of time.
I set the Revo settings back to Boost 9 Timing 5 and Fuel 9.
Immediately after changing these settings the car was pulling 245 g/s again, and I could instantly feel the restored power.
I took a trip down to Unicorn Motorsport in Stockport to get my car health checked so its ready for Stage 2+ over winter.
He did a few runs monitoring all sorts of sensors including fueling.
I was advised the my fueling needed attention, especially if I was to upgrade to stage 2+.
Rick recommend an uprated HPFP, RS4 Fuel Pressure Release Valve, and Cam Follower.
I highly recommend Rick, he knows his stuff, and is willing to explain in detail anything technical I had to ask.
I will upload my power graph tomorrow when I can scan it at work.