Idle control system malfunction

Tiny
KRISTINREAMS
  • MEMBER
  • MITSUBISHI
I have a 1997 eclipse gst.2.0. 110,000 miles, and my check engine light was on so I took it and had them hook it up to see what it said, well I got this code PO505. Which is an idle control systlem malfunction. So I took my car and had the throttle body cleaned to see if it would solve the problem, well now when the car is sitting still it is automatically reving itself. I believe it is the idol control sensor, I am not sure the correct terminology. Any information would be so helpful. Please get back to me with some information on this. And if you could let me know what that sensor is exactly called. Thanks :(
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Thursday, April 13th, 2006 AT 10:45 PM

10 Replies

Tiny
LOSONE
  • MEMBER
It sounds like you have a bad "idle air controller."
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Friday, April 14th, 2006 AT 10:48 AM
Tiny
KRISTINREAMS
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Well someone told me to go back out and check it after it sat awhile, so I went back out checked it and it was no longer doing, but the check engine light was still on, they told me that sometimes the throttle body cleaner can do that to you car.
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Friday, April 14th, 2006 AT 11:17 AM
Tiny
LOSONE
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Throttle body cleaner disapates in about 10 minutes of driving. That isn't the problem. As I said it is probably the idle air controller.
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Friday, April 14th, 2006 AT 11:25 AM
Tiny
KRISTINREAMS
  • MEMBER
Yeah I am sure that it is the idle air controller. Is that what it is called. Do you know where I will be able to find one at a cheaper price. Cause the only place I could find it around here is the mitsubishi dealership.
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Friday, April 14th, 2006 AT 11:30 AM
Tiny
LOSONE
  • MEMBER
You could try a salvage yard but it is a dealer only item.
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Friday, April 14th, 2006 AT 11:52 AM
Tiny
KRISTINREAMS
  • MEMBER
Is that considered the sensor though
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Friday, April 14th, 2006 AT 11:59 AM
Tiny
LOSONE
  • MEMBER
It is not a sensor but an active component
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Friday, April 14th, 2006 AT 12:09 PM
Tiny
KRISTINREAMS
  • MEMBER
Ok thanks. And that would set me check engine light
on. Right
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Friday, April 14th, 2006 AT 12:10 PM
Tiny
AWD 98 GSX
  • MEMBER
Bad throttle body
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Saturday, July 8th, 2006 AT 8:54 PM
Tiny
98 GST
  • MEMBER
It sounds more like your throttle positioning sensor is failling. Your throttle body doesnt actually fail, unless it has dust or grease build up in the flaps. If you cleaned it, and it is still failling, then the sensor is failling, or you need to adjust the screw on the throttle body. But the throttle positioning sensor sounds more like your problem.
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Tuesday, July 11th, 2006 AT 10:58 PM

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