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How to fix a P0506 idol control system rpm low problem

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6ya6ya
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Posted on Jan 02, 2017

Molson02536
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SOURCE: Code P0506, Idle control system RPM low

It's common that you get a lot of carbon build up at the base of the throttle body. Give it a good spray cleaning with injector cleaner and dry it with a hair dryer. If you find it still to dirty, you can try it again with a second can or if you can try using Sea Foam that you can buy at an auto parts store like Auto Zone. The Sea foam will clean out the carbon but also create a lot of smoke.
When i say lot's of smoke, just do a search on You Tube for Sea Foam. Good luck and hope this helps.

Posted on May 25, 2009

  • 1 Answer

SOURCE: Using an Actron on a 2006 Envoy, I get codes P0506

The throttle body needs to be cleaned. The cost to clean it is $69.95 at the dealership.

Posted on Jan 21, 2011

  • 2 Answers

SOURCE: code p0506 for mustang gt

Disconnect the air intake duct from the trottle body. Clean the trottle body bore with alcohol to remove carbon deposits until clean. You have to flip the the trottle plate to do this. Clear code if you have a scanner or it will clear by itself if there's no problem after some key cycles.

Posted on Dec 18, 2009

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SOURCE: My 2005 Endeavor failed the California smog

At autozone service center its free to get car scanned.They dont charge for scanning .You get codes for free.------ But basically the diagnostic cost at local service centers is Approx $75.This is there starting price.It depends upon, how much time it takes.---------- Also confirm with any other local service center for the diagnostic price.----------- 178 is bit double the regular.------- ------------ Ask them to charge less.Its more then regular cost.-------- Thanks.Helpmech.

Posted on Aug 05, 2011

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Code p0506 on a 03 grandmarquis battery light comes on and stalls.


Does yours have electronic throttle control ?
P0506 - Idle Air Control System RPM Lower Than Expected (Electronic Throttle Control [ETC] Vehicles) The PCM attempts to control engine speed during KOER self-test. The test fails when the desired rpm could not be reached or controlled during the self-test.
  • Air intake restriction
  • Exhaust restriction
  • Engine mechanical fault
  • Damaged electronic throttle body (ETB)
  • Damaged PCM
This DTC is informational only and it may be accompanied by other DTCs. Diagnose other DTCs first. If other DTCs are not present inspect the intake air system for air or vacuum leaks and damage. If no concerns are present, clear the DTC and retest. P0506 - Idle Air Control System RPM Lower Than Expected (All Others) The PCM attempts to control engine speed during KOER self-test. The test fails when the desired rpm could not be reached or controlled during the self-test.
  • IAC circuit shorted to PWR
  • VPWR to IAC solenoid open
  • IAC circuit open
  • Damaged IAC valve
  • Damaged PCM
  • Air inlet is plugged
The IAC solenoid resistance is from 6 to 13 ohms. Monitor IAC PID duty cycle and/or voltage.

Jun 21, 2015 | Cars & Trucks

1 Answer

Code p0506


Check Engine light Code P0506 Throttle Body Idle Air Control (IAC) System RPM Lower Than Expected, Do not waste your money Solve the problem of code Throtte Body P0506 with three dollars video Part #1 Remove Throttle Body

Oct 23, 2013 | Cars & Trucks

1 Answer

Low idle p0507 pictures of the part


http://www.autozone.com/autozone/parts/Duralast-Idle-Air-Control-Valve/1999-Buick-Lesabre/_/N-jd47xZ9gsof?itemIdentifier=91113_0_0_Idle control system high(rpm).This is what it states for code P0507.Code P0506 is for low(rpm).Buicks have a history for sensors that go bad and hard to find which one without replacing some that are good.Here is a part to check out,Click on link to view.

Sep 15, 2012 | 1999 Buick LeSabre

1 Answer

06 chevy trailblazer idle control system RPM lower than expected


P0506 - Idle Air Control (IAC) System RPM Lower Than Expected

What does that mean?
This P0506 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0506 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is lower than the desired (pre-programmed) RPM.

Potential Symptoms: Most likely the only thing you'll notice is the idle speed is lower than normal so it will likely be rougher. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.

Causes: A P0506 DTC trouble code may be caused by one or more of the following:
* A vacuum leak
* An air restriction in the intake air path or exhuast
* A faulty positive crankcase ventilation (PCV) valve
* Damaged/failed/dirty throttle body
* Internal engine problem
* Failed PCM

Possible Solutions:
This DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect for vacuum leaks, restrictions, and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.

Other related DTCs: P0507

Jul 13, 2010 | 2006 Chevrolet Trailblazer

2 Answers

Would like to know what code 506 means on my 04 f150all i did was change my battery and check engine light came on truck started to stall and run ruff is there a reset sequence i need to go through? please...


P0506--idle air control system rpm lower than expected--check around where battery was replaced may have damaged or knocked loose a vacuum line- possible dirty throttle body clean throttle body check for restriction in intake air tube also clean" iac"---possible faulty pcv valve fix or replace if necessary--good luck

Jan 27, 2010 | 2004 Ford F150

5 Answers

DTC PO300 and PO506 engine won't idle when cold


CODE PO300 MULTIPLE ENGINE MISFIRE DETECTED CONDITIONS. CODE PO506 IDLE SPEED TOO LOW CONDITIONS.LOOKS LIKE THE IDLE SPEED CONTROL IS NOT WORKING.

Sep 04, 2009 | 2003 Pontiac Montana

1 Answer

Code P0506, Idle control system RPM low


It's common that you get a lot of carbon build up at the base of the throttle body. Give it a good spray cleaning with injector cleaner and dry it with a hair dryer. If you find it still to dirty, you can try it again with a second can or if you can try using Sea Foam that you can buy at an auto parts store like Auto Zone. The Sea foam will clean out the carbon but also create a lot of smoke.
When i say lot's of smoke, just do a search on You Tube for Sea Foam. Good luck and hope this helps.

May 25, 2009 | 2007 Ford Explorer Eddie Bauer

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