2001 vwtdi high idle .what is normal rpm for idle and how do you adjust idle

replace the idle control module

All the above is normal , except 2000rpm is a little high at idle . can be adjusted down to 1500rpm. the computer adjusts the engine speed . in drive the transmission loads up the engine idle drops to 1000rpm . in park engine unloaded rpm increase all normal.

you cant adjust the idle ethere you have a problem with tps sensor or idle control valve let me know if check engine light is on ok ill help you

your rpm is to high adjust your normal idle to .85 when a/c adjust the actuator to reach rpm .95 approximately but be sure not over to 1.

1st run scans for fault codes.

Most vehicles run at a high RPM for a couple minutes until they are warmed up, and then it should drop down to normal idle speed.

i have seen this happen in other makes also, that fast idle is controlled by the ecm, if it annoys you talk to the dealer, otherwise its not hurting anythig

you need to replace the throttle position sensor on the intake.

fuel pressure regulator!! vacuum run not electric!! happened to my 97 lesabre

You may have a bad control valve or regulator. Did you adjust the idle properly?

1. Disconnect the connector on top
2. Adjust idle to around 650-700k rpm
3. Reconnect the electrical connection

After reconnecting, the idle should jump up around 700-750k rpm.
The idle screw is fail safe setting in case the ecu cannot set the idle. The rpm's set by the idle screw are supposed to be below the ecu/stock idle.

If this doesn't work, you may have a dirty or bad Idle Air Adjuster and/or Air Regulator. For information on cleaning that, you can refer to this page http://s95014253.onlinehome.us/63104/157335.html

You can test the IAA by supplying power to the plug with the car off. Listen for any clicks or humming. That will signify that it still may be working but is possibly stuck. The Air Regulator is for high idle for warming up your car. It has a bi-metal spring inside that rotates a disc closing off an airway to bring idle to normal after a couple minutes. If it dies it will stay open and give you permanent high idle. If it gets clogged usually no high idle for warm up.
You can remove it and peer through the end. If you see a thin sliver of light, it's open. Connect 12 volts + & -, wait a few minutes and see if it's now closed. If not, it's likely dead. It can be opened and cleaned if that's the issue.