I've had issues... Long Cranks, 6-8 seconds start-ups with codes showing up with the BT tool: : which is, drum roll; a shadow code for "fuel high pressure on enabling of injection: pressure too low"
Also thrown CEL's at partial low throttle while going up ramps. "Engine Malfunction, reduce power, blah blah blah" But the X responds normal and doesn't have reduce power at all...
I'll be going to the dealer soon myself... Already took my Stg 1 out, and I still get these problems. And some of these above problems were occurring before i put the tune in, so don't say it's a symptom of the tune.
As I've said in the past, the N55 still has the same issues the N54 has/had.
BMW X5 35i: Boopie Exhaust, Boopie Intercooler, K&N Drop in Filter...
Audi S5 2013 (Delivery Sept 2013): Mods pending review
Last edited by Army X5 S5; 07-18-2011 at 04:22 PM.