Whats wrong with my idle?

[kenjiw]

During the first part of my day, my idle is normal at around 750-900 rpms. But as the day goes on it goes to about maybe half of that. heres a video to show you and my oil pressure light kinda flickers and i believe its on because the idles so low. any ideas heres a video to show you guys.

[ame=http://www.youtube.com/watch?v=KDg2SO3zgBw]Dsmtuners idle - YouTube[/ame]

 

[stunt2]

haven't you tried to rise it a bit ?

 

[kenjiw]

haven't you tried to rise it a bit ?

yeah i tried unless im doing it wrong it stayed the same, you just have to screw in a bolt or something right? Sorry im new to working on cars. which is why im in the newbie forum.

 

[gsexxx]

idlesurge [ECMTuning - wiki]

 

[jdezmit]

air leak anywhere?

 

[SNAKE_15]

Maybe one of your vacuum lines came off

 

[iBoostDSM]

Terry's Talon Troubleshooting Tips #3 - Fast Idle (aka. Idle Surge)

Get reading!

 

[Caron]

You could also check and see if your iacv is dirty. And check vacuum lines

 

[DSM1G90]

If you're new on vehicles, leave the hood down and take it to a shop ..

It be the safest bet for you since these other posts would be overwhelming to you at the present time until you understand how a vehicle works of any make and model.

 

[My1GLaser]

Sounds like your TB could use a good cleaning. The ISC is probably all crudded up and the BISS and the passages. It can only bypass so much air and is really limited if it is partially clogged. The FIAV sucks and is partially to blame for inconsistent idle! I have always blocked off the FIAV passage while retaining the ISC function. Might as well do the shaft seals if you plan on cleaning it/rebuilding it.

Oh yeah, you'd be surprised what a difference just cleaning the throttle plate will make. I've fixed 3 different cars idles by just cleaning the throttle plate and where it seals inside the TB with seafoam.

 

[kenjiw]

If you're new on vehicles, leave the hood down and take it to a shop ..

It be the safest bet for you since these other posts would be overwhelming to you at the present time until you understand how a vehicle works of any make and model.

true and yeah im pretty clueless so far... :/ but at the sametime i want to be able to learn but its hard. If i take everything apart and cant finish in time im screwed because my car is a daily driver but if i don't do it how the hell am i suppose to learn?

 

[DSM1G90]

but if i don't do it how the hell am i suppose to learn?

Right now, you have a problem and no choice in the matter - it's need attention to keep you on the road.

I agree: it's fun to learn, but you need your vehicle more important to get you where you need to get to on a daily basis.

Thus, what's more important at this time? Get the idle fixed by someone who is qualified to cure your problem, or dive into it blindly and facing the risk in having your car down for the count due to your lack of knowledge?

If you had another car as a DD, then by all means have fun learning like I did since I had the backup, but this is your only vehicle, so thus think on it some more.

 

[Kod]

Test the ISC motor. (Idle Speed Control) It's a sensor directly on / under the throttle body elbow.

BISS screw should be 2 full turns out, a screw that is in the side / top of throttle body that should have a plastic plug / cap over it and the screw is recessed in. Don't bottom it out when adjusting and that's it unless you have it tuned for other reasons (otherwise you will blow ISC motors left and right)

Boost leak test

Vacuum lines (make sure they are all on and not dry rotted)

Make sure the EGR valve has a gasket.

As My1GLaser said clean the TB plate too (don't get any cleaner down in the port holes though)

Another check is to make sure the intercooler isn't rotted anywhere.

 

[kenjiw]

What if i dont fix this what could happen? Since the car still drives fine and doesn't die when idling. Im obviously going to fix it but lets just say i dont.