My car is Revo stage3 and one week ago I wanted to play around with the Select Plus to see if I can get better power output. And moreover, I have the feeling that some time to time in 3rd gear at full throttle there is a little hesitation at about 5000rpm.
Any way, I just get a Ross tech cable so I went for some logs.
And then I found out that Actual Rail pressure was quiet low compare to requested one.
I Emailed Revo And Carl comfirmed me that it should come from a failing fuel pressure relief valve.
So I decided to fit a rs4 fuel pressure regulator valve.
It's a pain to remove and a nightmare to fit.
I have to run more test but the fuel pressure looks much better and the car seems to be a little bit more responsive and to pull more smoothly and strongly.
Four logs with Difference between request and Actual Rail Pressure.Positive number means Actual is below requested.Here requested vs OEM VS RS4If somebody can tell me how to properly display an Excel Graphe on the Forum he will be welcome...