The Tribeca is My wife's car, so it was taboo, until she drove my Toyota Corolla. Even she could "fell the difference!"(TM*) So , yesterday I had the chance to Groove the Subaru Tribeca (3.6 L, H6). I love electronic throttles! Less work , better response. There is one catch; "where do I cut the groove?" I use a Scanner to read the TPS (%)at Cold Start. For the Tribeca was 20% . So, after I took the throttle off , I positioned the TP (throttle plate)at an angle that matches the TPS($) reading. (Throttle connector ON, key ON, engine OFF)
Because the difference in diameter of the throttle body (TB), Ron's trick with the business card doesn't always work...and than you have idle problems... and you have to redo it. I believe my method will always work.
The results:more power , smoother run, quieter engine ( My wife said "it's like flying!), and a better MPG on her 50 miles daily drive . This car has an on board trip computer that shoed 18.6MPG average compare to 15MPG before the Groove! That is 24%! Pretty good for a half our work.
That's IT! I am going Pro!
Titus