2017年5月6日 · P1549 says that the calculated and requested air mass deviated by more than 50mg/c so I fired up a line graph on the deviation from requested air mass. I drove for about 15 minutes under a variety of conditions (stomping on it, idle, cruising, etc) and didn't see any deviation more than 25, and that is idle.

2006年10月1日 · P1549 : & p1549. boost control valve Incident # 2 was driving up hill and suddenly at 2 rpm , I found CEL due to p1549. This time the other fault code was not there. I checked all the vacuum hoses .They were okay this time too.... so it looks like... has it anything to do with the dump valve change.

2017年9月8日 · Have had P1549 set pretty much every time I drive the car, for not quite a month. If I use light throttle pressure and keep boost under 0.5 bar (base boost), code will not set. As soon as boost exceeds 0.5 bar, P1549 sets and I'm restricted to 600 mg/sec airmass. Have followed diagnostic procedure in WIS, problem still presents.

2009年4月27日 · P1549 charge air malfunction Jump to Latest 3.6K views 3 replies 3 participants last post by lms Apr 28, 2009

2009年6月10日 · 01 2.3t 95000 mi stock fresh ngks ,air filter ,oil change, fuel filter. I had the car on about 45 mins of an 90 min trip at 80 mph running sweet al of the sudden it hiccuped and cel came on then i noticed my boost guage wouldn't go up past bottom of yellow and down on power but otherwise running smooth. finished trip and came home uneventfull. read code p1549 my book says idle speed control ...

2007年7月10日 · What does P1549 code mean? Jump to Latest 5K views 1 reply 2 participants last post by saabSean Jul 10, 2007

2017年6月21日 · Saab 9-5 Mk.I, 1998-2009. 9-5 Workshop. P1549 - probably not the charge air control valve

2009年3月9日 · P1549 code after new fuel pump. Related? Jump to Latest 2.1K views 4 ...

2015年9月23日 · Saab 9-5 Mk.I, 1998-2009. 9-5 Workshop

2017年10月9日 · Periodic P1549 - Air charge control valve Jump to Latest 555 views 3 replies 3 participants last post by Wolfmaster Jul 3, 2024