1 Attachment(s)
LNF tune won't keep boost DTC P2261
I tuned a 2007 Saturn Sky Redline for a friend. The car baselined 238rwhp/257rwtq. The boost was right at 14.5psi. The (attached) tuned combo made 286rwhp/334rwtq. Boost was in the 23psi range. The mixture during the dyno session was quite a bit leaner than commanded so the MAF was tweaked in the upper flow range. The car ran flawlessly on the street, pegging the boost gauge at 23psi. Later, the friend reported that the car was only putting out 11-13psi. They were also getting a P2261 code. Can somebody please check out the attached tune and see if I made any rookie mistakes? I would appreciate it if you could tell me if this is something tune related or if the car could be experiencing some kind of mechanical issue. Thanks!
Attachment 42668