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Underbody braces, turbos and more!

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PostPosted: Thu Jan 15, 2015 2:47 pm 
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Joined: Mon Feb 20, 2006 7:02 pm
Posts: 33
Location: Central Arkansas
Hey guys, long time no see...

I've been driving these little cars for 20 plus years now. I rarely need to come in here for help, because the little cars just keep going like the Energizer Bunny. But I do try to stay on top of things when I have issues.

About 3 months ago, I replaced all the vacuum lines. Also replaced the thermostat. It's been running fine ever since. But recently, for no reason at all, it starting idling high around 2200 rpm. It doesn't matter if it's cold or hot, 2200 rpm. I sprayed either on every vacuum hose connection and vaccum component. It never revved at all by spraying the ether.
So, I screwed the adjustment screw all the way down on the VSV valve? It has 2 vacuum hoses and an electrical connector. This did lower the warm idle speed down to 1800 rpm. But I"m sure I'm just putting a bandaid on the problem. I want to fix it correctly. It sure does seem like it's a vaccum leak somewhere that just started suddenly. By the way, cold idle is still 2200 rpm. Any thoughts?

I hate it this thing idles so high when I start it during these cold mornings.

Thanks!


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PostPosted: Thu Jan 15, 2015 4:15 pm 
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Joined: Mon Feb 20, 2006 7:02 pm
Posts: 33
Location: Central Arkansas
Update:
As soon as the thermostat opens and the temperature gauge needle begins to rise, the engine immediately idles down to normal...But, again, I have the VSV valve incorrectly adjusted I'm sure...it's screwed clockwise all the way down...


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PostPosted: Thu Jan 15, 2015 10:43 pm 
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Joined: Tue Feb 13, 2007 10:28 pm
Posts: 1170
Location: So Cal, USA
Check the coolant sensor, there are 3.
You want the one that feeds the ECU, the other two are for the light and the needle gauge.

It's not a vacuum leak. A vacuum leak will make an MK1 run rough and die out at idle.

Check the cold idle thingy in the throttle body, it's connected to a coolant line and has
wax pellets in it that react to coolant temp and adjust idle based on temp.
Pull off the coolant hose and check to see if it's blocked with crud, in and out.

The idle air control valve can also fail, remove it and inspect for obstructions,
careful taking hose off as you can break it. I've not had one go bad, but hear
the internal spring can break, but can be replaced with a little ingenuity.

If I had to guess, I would most likely suspect blocked coolant flow
through the throttle body mechanism.

Do you have a turbo supplement manual? It's loaded with valuable
information.


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PostPosted: Fri Jan 16, 2015 12:09 am 
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Island Inbreeder
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Joined: Tue Oct 18, 2005 6:56 pm
Posts: 6347
Location: Emerald city Washington
Hey Roy it has been a long long time 6 yrs last october
the P.M. feature he blows a large one
if you need to get a hold of a member your best bet is to make a post like you did
.
Your car
.
Image
.
.
I still believe it's the MAF...
you might get luck like JamalSpelling said check your Coolant sensor.......scott

_________________
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t3 ragtop wrote:
the 3 banger isn't at all a "grenade." it's a tough little son of a bitch doing a big job. respect it.
suprf1y wrote:
I didn't save anything.Vehicles are to me, like little boys are to Tommy.Toys to be abused for my own personal pleasure.
jrjd wrote:
"Driving a Swift GTi is like driving a bike in your house".


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PostPosted: Fri Jan 16, 2015 8:18 am 
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Joined: Mon Feb 20, 2006 7:02 pm
Posts: 33
Location: Central Arkansas
JamalSpelling, thanks for the help. Looks like I need to locate a copy of the supplement for the turbo cars.

Scott, nice to hear from you. I drive 110 miles round trip daily. These cars are tough!...and great on gas...


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PostPosted: Fri Jan 16, 2015 1:12 pm 
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Joined: Sun Apr 07, 2013 4:01 am
Posts: 87
Location: AZ
Sandcassle wrote:
JamalSpelling, thanks for the help. Looks like I need to locate a copy of the supplement for the turbo cars.

Scott, nice to hear from you. I drive 110 miles round trip daily. These cars are tough!...and great on gas...


Locate one here under cjdave starflower link
viewtopic.php?f=14&t=56788&p=425476&hilit=turbo+supplement&sid=78360537c789fe76ccea0f322b91aac7#p425476


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PostPosted: Fri Jan 16, 2015 4:09 pm 
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Joined: Mon Feb 20, 2006 7:02 pm
Posts: 33
Location: Central Arkansas
Sol...

Thank You!
Thank You!
Thank You!


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PostPosted: Sat Jan 24, 2015 11:51 pm 
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a.k.a Bum head
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Joined: Mon May 31, 2004 5:29 pm
Posts: 3157
Location: London, ON
Ha. I'm glad people are still finding that supplement useful. Good thing I fired up the ol' webserver recently!


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PostPosted: Thu Jan 29, 2015 9:24 pm 
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Joined: Sun Apr 07, 2013 4:01 am
Posts: 87
Location: AZ
CJDavE wrote:
Ha. I'm glad people are still finding that supplement useful. Good thing I fired up the ol' webserver recently!


Yes, the thanks belong to you for that link; So very much appreciated.


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