Thought I'd just post an update - ended up replacing a couple of vacuum elbows (mostly related to the SAS), the IAC hoses (and cleaned the IAC), fuel relay and MAF. MAF was possibly overkill, but as it was such an intermittent problem it made it somewhat hard to diagnose, and I didn't want to wait ...

Ok, cleaned the throttle body, IAC and replaced the spark plugs. Spark plugs looked normal when I took them out. The pipes that connect the IAC to the air hose and vacuum tree, while not loose, were quite easy to remove, so I'm wondering if they need to be replaced? Didn't get a chance to look at ...

OK, checked all the vacuum lines - for the most part they seem fine. The only one that was broken looking was the line that goes from the vacuum tree to some sensor/valve on top of the fan shroud. Its not actually on the the diagram that erikv11 linked to, so I'm not sure what it is/does. Its the ...

Cool, thanks! - i've got some things to check this weekend. The code its showing is a P0455 (i think) - Large EVAP leak, but its been showing that for about 4 years without any issues (I have tried to fix it...).

I'm going to replace the MAF, I figure thats a good place to start. Is there a way to ...

Ok, thanks. Also just realized I have those screenshots labelled incorrectly, they should be reversed.

MAF is at least 4 years old, so probably much older. I'm. Not sure what make, presumably I should replace it with a Bosch model and not the rebuilt one advance is selling?

IAC is the idle air ...

Hi,

I have a 96 850 GLT Wagon thats been having some issues recently. Usually it starts and runs fine, accelerates and idles smoothly. Recently though I have had the following happen - 3 weeks ago it as I was coming to a stop the revs died and surged and then it cut out and I was unable to start it ...