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Mon May 23, 2005 9:31 am

Hi there, Well the beast made it over the Rockies after all! (Although I did have to keep it in second for one particular climb :wink: ) I yanked the middle seat from my 85 1.9 vanagon and stuffed it to the ceiling with everything I didn't sell before the big move to Telluride.
I do have some idle issues after the 2000 mile trip that I'd like to clear up before the end of summer (bound for Central America)... After a long day of driving the idle won't go back down to 900 when you let out the clutch... it'll stay at 2000 and will actually climb to 3000 without touching the gas pedal. After you let it cool down a bit (lunch breaks and all) the idle will be back to normal... any ideas? Oh, and is there anything that needs to be adjusted with the van now being in a much higher elevation? I went climbing yesterday and you can really tell there is a much lower percent of O2 up here! (ok, maybe I'm juat outa shape too! :D
Thanks!
Mat

Mon May 23, 2005 9:53 am

Great place Telluride (at least is was before the yuppies found it). It was becoming a little "artsy fartsy" for my liking when I was last there 20 years ago.

It might be time to install that new temp sensor you bought and have stored in your tool box.

Do the vacuum leak search with your Gum Out spray.

Then look at the idle stabilizer "test" in your Bentley.

Consider advancing your timing a couple of degrees to compensate for the lack of O2. It will help your oil temps also as they don't like to run too retarded. See how that works.

Mon May 23, 2005 11:16 am

Yea, sounds like the Idle Stab valve is sticking due to heat.

Remove the valve, and clean it out with air intake cleaner, DO NOT USE GUMOUT!

This was an issue on my Golfs as well. If course it can stick "the other way" and never open, causing the beastie to stall at idle.

Mon May 23, 2005 12:30 pm

Side question for Professor Reed:

Ifs the problem with Gum Out that it can wack out the sensors (like the O2 sensor)?

Mon May 23, 2005 3:28 pm

Professor? 8)

Yes, Gummout (or however you want to call it) is best left for cleaning the gunk out of your 75 Dodge carbruatzawatercalleddontuse-em-any-more.

If the can says its "O2 sensor safe" then it is. BUT True air intake cleaner (CRC Brand, and 3M) don't eat *plastic* or teflon. I prefer these brands since they won't harm rubber, plastic. Or intake gasket, injectors, wires, or seals...

Coolant leaks, Silicone spray, RTV, and lead kills O2 sensors faster than you can say "go buy a new one".

Tue May 24, 2005 10:13 am

Wellllll.... before I left PA I went down to the Bus Depot and picked up a Temp Sensor, Digital Idle Stabilizer and replaced all vacuum lines. When you say clean the valve, where is that... do you mean the intake after the boot?
And yeah Randy, the hippy ratio out here has become somewhat the majority... Either you have a trust from and are just out here living the Peter Pan Liftestyle, or you actually work in the growing number of bars and restaurants out here... heck of a view though! :D

Tue May 24, 2005 10:42 am

The idle valve (if a 2.1, I think a 1.9 is same?) is shown with a numer 13 on it.

http://www.benplace.com/intake_fuel_injection.htm

Sat May 28, 2005 12:05 pm

Hey DanJReed,
Do you happen to have a picture of a 1.9??? mine looks very different from that...or can you confirm that the valve is in that housing after the boot...
Thanks!

Mon May 30, 2005 4:55 pm

Hmmmm.. Anyone?

I don't know.. I don't have a pic of a 1.9...

Are they Digifant?

Tue May 31, 2005 5:12 pm

Ok, well I looked at some schmatics and it seems the 1.9 does have the same type of valve, its got 2 wires running to it, but I can't see where it is on the engine.

Hope this helps..