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Date:         Sat, 3 Dec 2016 12:29:51 -0700
Reply-To:     OlRivrRat <OlRivrRat@COMCAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         OlRivrRat <OlRivrRat@COMCAST.NET>
Subject:      Re: wild, racing idle... the solution pack
Comments: To: Vincent Dow <ianvincentdow@GMAIL.COM>
In-Reply-To:  <CAF9Ro-ZwD39fYEu1etyOjS0vdJD=8yFq3=vD6KexiYK-b8661A@mail.gmail.com>
Content-Type: text/plain; charset=us-ascii

Vincent

Have You posted this to the SubaruVanagon Gruop ~

On 3 Dec , 2016, at 11:15 AM, Vincent Dow wrote:

> Hello, > > I've written a couple of posts about my van's deteriorating idle. > > (1994 *or 95* ej22 in 1982 A.C. vanagon) > > It's always had a sticky idle, but now it's gotten unbearable. Lately it's > been starting at 3500 rpm and sometimes staying there. It's rarely below > 2000 rpm anymore. it will occasionally settle down to 900 and act normal. > > after 15 minutes driving in town, the CEL comes on and the idle drops way > down, big loss of power. I'm convinced it's a vacuum leak - just feels like > it. Exactly the same conditions as when brake booster hose came off - minus > the hard-braking. > > Today i finally ordered a replacement gasket for the IAC. > > On Monday, i'm taking it into my mechanic's shop where he will be restoring > the spare -tire tray, which was displaced at time of conversion. > > I'm going to pull the IACV before the van goes up on the lift... clean it, > inspect the rubber boot etc. > > BUT, before I work on the IACV, I want to check out the TRANSMISSION ID > wire. > (I suspect that there are multiple problems with my van's idle) > > On the printed OBD1 pin-out chart, terminal B48.20 is listed as the > Transmission ID. > > Do I understand correctly that this identifies if its MT or AT, and it > would affect the vehicles idle. If my engine and ECU came out of an AT > Legacy, I would want to reassign it as an MT. > > Is this a matter of grounding or ungrounding B48.20? > > I really want to see what this does, before beginning on the IACV.


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