Alright I've hit a dead end and could use some help. My 08 g37s has been intermittently going into limp mode recently (every ~500 miles or so), it drives fine and with no codes normally, then goes limp randomly (doesn't seem to matter if I'm going WOT or just cruising) and spits out p1608, p1092, and p1089 for both banks, usually i can reset the ecu and it goes right back to driving normal. After some research, the vvel module seemed to be the likely cause so I replaced that, recalibrated the ecu, and after another week or two of driving it went back to limp mode and I can't get it back to normal. Oil pressure is fine so I don't think the galley gasket is the culprit, all codes seem to point to something in the vvel system but I just don't know where to begin diagnosing. Any help or shop recommendations in the Boston area would be greatly appreciated.

Thanks,
Austin

 

Hello, know this is an old thread but did you manage to fix it? Having 1608 as well