04-29-2018, 08:03 PM
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#1
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Registered User
Join Date: Feb 2017
Location: CO
Posts: 989
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Threw a P0507 code...
So looks like I have some troubleshooting to do. Started the car up today and it was a little cranky. Unusual. Seemed to run fine, after about 30 min at a stop light noticed the idle climbing a bit. Shut it down at Starbuck's, we did our thing, and started right up and seemed fine. Stopped to get some food, climbing idle and threw the CEL. Checked at home, P0507 is the only code that came up. Cleared the code, idle is normal, but a bit rough, accelerating just fine. I cleaned the throttle body a bit ago, no noticeable smoke, and haven't noticed any other issues. The only engine component I have changed recently is the water pump and low temp thermostat. Also added an oil pressure sensor. Bled system as described in the Bentley manual, temps/levels seem fine. Thinking MAF, poss AOS, maybe vacuum leak somewhere? Thoughts?
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04-30-2018, 01:45 AM
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#2
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,583
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Quote:
Originally Posted by Geof3
So looks like I have some troubleshooting to do. Started the car up today and it was a little cranky. Unusual. Seemed to run fine, after about 30 min at a stop light noticed the idle climbing a bit. Shut it down at Starbuck's, we did our thing, and started right up and seemed fine. Stopped to get some food, climbing idle and threw the CEL. Checked at home, P0507 is the only code that came up. Cleared the code, idle is normal, but a bit rough, accelerating just fine. I cleaned the throttle body a bit ago, no noticeable smoke, and haven't noticed any other issues. The only engine component I have changed recently is the water pump and low temp thermostat. Also added an oil pressure sensor. Bled system as described in the Bentley manual, temps/levels seem fine. Thinking MAF, poss AOS, maybe vacuum leak somewhere? Thoughts?
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P0507 Idle Air Control at Stop Above Limit
__________________
Anything really new is invented only in ones youth. Later, one becomes more experienced, more famous and more stupid. - Albert Einstein
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04-30-2018, 06:04 AM
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#3
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Registered User
Join Date: Feb 2017
Location: CO
Posts: 989
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Quote:
Originally Posted by JFP in PA
P0507 Idle Air Control at Stop Above Limit
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The Bentley manual states B+ short as well. Would that be a throttle body issue potentially, or look somewhere else? Just not 100% sure what to test for this one. Don't want to randomly replace parts It doesn't need...
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04-30-2018, 07:28 AM
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#4
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,583
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On the egas cars, the idle air control is in the throttle body.
__________________
Anything really new is invented only in ones youth. Later, one becomes more experienced, more famous and more stupid. - Albert Einstein
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04-30-2018, 08:25 AM
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#5
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Registered User
Join Date: Dec 2016
Location: Clifton, NJ
Posts: 1,135
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I have a good used throttle body if you need one.
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04-30-2018, 09:02 AM
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#6
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Registered User
Join Date: Feb 2017
Location: CO
Posts: 989
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Quote:
Originally Posted by JFP in PA
On the egas cars, the idle air control is in the throttle body.
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My car is an 02S, so Egas I'm pretty sure.
So, is that valve a replaceable/cleanable part? I remember replacing essentially the same thing on my Jeep. Tried to clean it, but it was still malfunctioning. I need to dig in and see what I've got. Been a while since I've had the intake apart. Look to see if, and how much, oil contamination there may be.
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04-30-2018, 04:59 PM
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#7
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Registered User
Join Date: Feb 2017
Location: CO
Posts: 989
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So, pulled the TB and the MAF, cleaned both, put it all back together. Runs just fine. Maybe she was in a bad mood yesterday! Thanks for the suggestions.
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