[T3] Question about D jet idle issues 73 T3

[Keith Park]

Stock 73 should run 89 but if you dont have the stepped heads 92min.
I had to completely re-jet the carbbed cars and adjust the FI
on the FI cars to run with todays gas, big change in gas
here in NY several years ago and CA is probably worse.  RUnning the Ethanol
will require the FI to run richer, unplugging the IAD temp sensor is one way
to do that, in Hollywood you dont need the cold start system as much so this
is acceptable.
the other thing you can do is bump up the Fuel pressure to say, 33 or 34psi
and see how it runs.  But MAKE SURE everything else is exactly right first, 
valve, timing etc or you can screw up a system that wasnt the problem in the

first place and be in even more of a hole.

Make sure your not trying to run the E15, that stuff is NASTY NASTY!

Keith


Topnotch Restorations
topnotch at nycap.rr.com
http://www.a383ina68.addr.com/radiorest/main.htm
71 Squareback  "Hothe"
65 Notchback  "El Baja Rojo"
93 RX7  "Redstur"
87 Golf  "Winterat"
 

-----Original Message-----
From: type3-vwtype3.org [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org]
On Behalf Of William J
Sent: Tuesday, January 26, 2016 7:47 PM
To: type3 at vwtype3.org
Subject: Re: [T3] Question about D jet idle issues 73 T3

 I live in Hollywood , CA . I was using 87 octane exxon then switched to 
Shell 89 octane. It seemed to have a bit more power with 89 Shell yet didn't

change the idle issues. I think the ethonal is 10%

 Off topic ,it does have oil leaks , a bit at a few push rod tube seals but 
mostly on the left side might be old oil cooler seals . I wanted to clean it

all off so I can find where the leaks are. The runner hoses have oil on all 
of them but that seems to be blowing up from the torque converter cooling 
fins or just from air flow. It does not burn oil.

 I would like to pull the runners and IAD and upper tin to replace at least 
the runner hoses and cooler seals . I'm not sure if the intake gaskets can 
be reused . I doubt they are cracked but the paper gaskets might need 
replacing.. The old ones I tossed didn't know they would become so difficult

to locate these days. They never cracked . I used this brush on sealer Ford 
used when I worked as a Tech for them for over 40 years. It was just a thin 
sealer we used on gaskets. I only see runner hoses at one place now . Mine 
ar the old German ones with the cloth covering.

 I don't drive much and not long trips yet since this is my only car I can't

do a lot unless I can get it done in a few days.

 William

William
----- Original Message ----- 
From: "Keith Park" <topnotch at nycap.rr.com>
To: <type3 at vwtype3.org>
Sent: Tuesday, January 26, 2016 4:19 PM
Subject: Re: [T3] Question about D jet idle issues 73 T3


> what gas are you running?  What part of the country, what elevation?
>
> Keith
>
>
> Topnotch Restorations
> topnotch at nycap.rr.com
> http://www.a383ina68.addr.com/radiorest/main.htm
> 71 Squareback  "Hothe"
> 65 Notchback  "El Baja Rojo"
> 93 RX7  "Redstur"
> 87 Golf  "Winterat"
>
> -----Original Message-----
> From: type3-vwtype3.org 
> [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org]
> On Behalf Of William J
> Sent: Tuesday, January 26, 2016 5:54 PM
> To: type3-vwtype3.org at lists.vwtype3.org
> Subject: [T3] Question about D jet idle issues 73 T3
>
> Has anyone run across issues with an unstable idle that clears up with the
> IAD temp sensor is unplugged ? It only shows up when there is no load auto
> trans in park engine warmed up . If I give it gas from 900 RPM idle speed
> and watch the tach for lack of a better term it seems to stuggle until it
> reaches 2000 RPM.
>
> I first noticed this when I opened the tail gate with it warm and runing I
> could hear an erratic miss out the exhaust , it's not one cylinder . Also 
> if
> I am driving say 30 MPH and let off the gas quick I hear a slight popping
> out the exhaust.
>
> The only thing that seems to cure this is to unplug the IAD temp sensor . 
> I
> assume it is running lean.
>
> It has all the proper E system parts and I have not found a vacuum leak so
> far. With the IAD temp sensor connected and driving under load it seems 
> fine
> other than the popping .
>
> It has the electric AAR which does close although it s eems to take longer
> to close that  it used to. I just changed the MAP to a NOS Bosch #  0 280
> 100 116. It holds vacuum and the resistence is within spec. Compared to 
> the
> old one with the temp sensor plugged in it's better yet still stuggles 
> with
> no load . My voltage is 14.3 at 1500 RPM. I don't have access to read the
> actual mixture I am just going by the way it acts.
>
> William
>
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