I did not do an ecu reset when I tried 100oct. But when I did have 100ct (5 gallons only in the tank with 25 miles worth of 93), the car did not pull hard low or top end and I would not pass 8 to 9 psi in 1st through 4th.. Regardless of the temps outside.Hmmm odd, did you reset the ECU after switching octanes? A fresh ECU reset along with 100octane juice really makes a huge difference probably similar to E85 but a ton safer.
oh boy.. compression test, new spark plugs, maf sensor, fmic kit, new fuel pressure sensor, HD TCV, snabb intake (incase the old tubing was cracked), new vac hoses... But at this point I am going to do a lot of data logging in the next couple of weeks and post those as well as put my old tcv back on. I don't want to waste any more of anyones time before I do that...Can you give a brief description of what youve tried as fixes?
hmm.. i may have to try vadis as well.The ECU can calculated a projected octane rating based on timing strategy and knock ceiling detection, in older VADIS version it could actually show you the projected octane that was in the fuel at the moment.
If you're seeing consistently low boost perhaps your boost pressure sensor is drifting or failing... somewhat common on your model.