P0507- high idle - Rennlist Discussion Forums

Log In 


Boxster & Boxster S (986) Forum Sponsored by: Porsche of Rancho Mirage

P0507- high idle

Reply
 
Thread Tools Search this Thread
Old 09-10-2012, 01:18 AM   #1
Mighty Shilling
Wax On, Wax Off
Rennlist Member
Thread Starter
 
Mighty Shilling's Avatar
 
Join Date: May 2003
Location: 5280 ft above the sea
Posts: 17,709
Default P0507- high idle

I got a check engine light today. A P0507. Ran fine other than a 1200 RPM idle. I cleared the code, and since its been fine, idling at 600 RPM. Any suggestions? Thanks!
Mighty Shilling is offline   Reply With Quote
Old 09-10-2012, 05:34 PM   #2
Macster
Addict
Rennlist Member
 
Join Date: Sep 2006
Location: Livermore, CA
Posts: 14,959
Default

Quote:
Originally Posted by Porschephile 924 View Post
I got a check engine light today. A P0507. Ran fine other than a 1200 RPM idle. I cleared the code, and since its been fine, idling at 600 RPM. Any suggestions? Thanks!
P0507 - Idle air control -- engine speed too high.

The ECM controls engine idle speed to a specified level through the fine adjustment of the amount of intake air which is let into the intake manifold by the operation of the electric throttle valve control actuator. The opening of the throttle valve is varied to allow optimum control of engine idling speed. The crankcase position sensor detects the actual speed and sends a signal to the ECM.

Possible fault causes: IAC valve is sticking or air cleaner blocked.

With a Porsche diagnostics computer this valve can be activated/tested. Clicking should be heard.

How to diagnose this/eliminate the IAC without the diagnostics computer's ability to control this hardware directly I have no idea.

And, there is the air cleaner possibility.

Sincerely,

Macster.
Macster is offline   Reply With Quote
Old 09-10-2012, 06:00 PM   #3
Mighty Shilling
Wax On, Wax Off
Rennlist Member
Thread Starter
 
Mighty Shilling's Avatar
 
Join Date: May 2003
Location: 5280 ft above the sea
Posts: 17,709
Default

Awesome. Thanks Macster!
Mighty Shilling is offline   Reply With Quote
Old 09-10-2012, 08:10 PM   #4
Domer911
Addict
Rennlist Member
 
Domer911's Avatar
 
Join Date: Apr 2011
Location: Oklahoma City
Posts: 1,244
Default

Quote:
Originally Posted by Macster View Post
P0507 - Idle air control -- engine speed too high.

The ECM controls engine idle speed to a specified level through the fine adjustment of the amount of intake air which is let into the intake manifold by the operation of the electric throttle valve control actuator. The opening of the throttle valve is varied to allow optimum control of engine idling speed. The crankcase position sensor detects the actual speed and sends a signal to the ECM.

Possible fault causes: IAC valve is sticking or air cleaner blocked.

With a Porsche diagnostics computer this valve can be activated/tested. Clicking should be heard.

How to diagnose this/eliminate the IAC without the diagnostics computer's ability to control this hardware directly I have no idea.

And, there is the air cleaner possibility.

Sincerely,

Macster.

^^^this kind of stuff is literally worth the price of admission!
Domer911 is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Why would a cam shaft plug pop out? DCJosh 996 Forum 10 03-11-2015 05:16 PM
A little help with a P0507 please FrannyB 996 Turbo Forum 4 04-27-2014 11:19 PM
P0705, Idle Air Control System RPM Higher than expected MagnusB 997 Forum 3 05-19-2012 12:03 AM
Lil' help...New 996 Owner CEL ckcooper 996 Forum 16 03-01-2012 10:43 PM
CEL P0507 UCrazyKid 996 Forum 5 02-03-2008 08:20 PM


Tags
996, adjuster, air, boxster, cleaning, code, control, idle, location, p0507, porsche, speed, switch, throttle, valve

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -3. The time now is 12:40 AM.


Copyright ę 1998 - 2015 Rennlist.com