Question about 2002 Mitsubishi Galant

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Check engine light is on

I went and had my 02 mitsubishi galant checked, it comes back with a p0507 code. Something to do with the IAC, could you let me know how i could trace this problem, thanks

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Posted on Mar 01, 2009

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My check engine soon light came on for two days and it went away yesterday.


If no driveabilty problems were noted it most likely was for an emmission problem. Every time you start the vehicle the computer does a self check on its operating parameters and does checks while the vehicle is in operation. If the checks pass the light will turn out until the computer finds a fault with something again.I would have the codes scanned if the light comes back on to determine the system at fault

Apr 11, 2015 | 2011 Mitsubishi Galant

3 Answers

COULD THE GAS PEDAL CABLE CAUSE THIS CODED PO507 to be high


Extracted from Engine-Codes.com

Code P0507

Possible causes

- Dirty throttle body

- Electric throttle control actuator misadjusted or damaged

- Faulty Electric throttle control actuator

- Intake air leak

- Poor electrical connection to the Intake Air Control (IAC) valve


help.jpg What does this mean?

Tech notes

If there are no intake leaks, clean throttle body, adjust engine idle and erase engine code. If the code comes back you may have to replaced the Electric Throttle Control Actuator (Motor) to repair the problem.



There is a factory service bulletin for the following Chevrolet models:



2006-2008 Chevrolet Trail Blazer

2007-2008 Chevrolet Avalanche

2007-2008 Chevrolet Express

2007-2008 Chevrolet Silverado

2007-2008 Chevrolet Suburban

2007-2008 Chevrolet Tahoe

Chevrolet Factory Service Bulletin OBDII Code P0507


What does this mean?

When is the code detected?

Thi P0507 code sets when the Powertrain Control Module (PCM) detects an engine speed outside of the Idle Air Control (IAC) valve range of control.

Possible symptoms

- Engine Light ON (or Service Engine Soon Warning Light)

- Engine hard to start

- Rough or erratic idle speed

P0507 Chevrolet Description

The Idle Air Control (IAC) valve is a Powertrain Control Module (PCM) controlled stepper motor located on the throttle body. The stepper motor drives a valve pintle which protrudes into a passage that bypasses the throttle plates. The PCM commands the IAC valve pintle to extend to decrease the idle speed. The bypass air flow is reduced and the idle speed decreases as the pintle approaches its seat. The PCM retracts the IAC valve pintle away from its seat to increase the idle speed. The retracting of the IAC valve pintle allows more air to bypass the throttle plates. One of the PCMs uses for the IAC system is to maintain a desired idle speed. This DTC sets when the PCM detects an engine speed outside of the IAC\'s range of control.





Read more: http://engine-codes.com/p0507_chevrolet.html#ixzz3ObdI2chF

Jan 11, 2015 | 2001 Chevrolet Blazer

2 Answers

Code p0507


possible causes are:

Dirty throttle body
Electric throttle control actuator incorrectly adjusted/faulty/damaged
Air leak on Intake
Poor electrical connection to the Intake Air Control valve

P0507 KIA Idle Air Control IAC System RPM Higher Than Expected

May 14, 2014 | 2003 Kia Sedona

1 Answer

My misubishi galant 1998 ES have check engine light and code PO505, any posible solutions?? It's shutting off constantly


Code P0505 is a problem with the IAC (idle air control) which regulates the idle speed. To check it quickly, disconnect the IAC connection located below the throttle body near the firewall. Start the car and the idle should run around 1300 rpm at idle. If this is the case then the likely cause it a bad idle motor. The cost of a new one is $110 at Pep Boys or $30 at a Pick n Pull. Keep me posted, thx.

Oct 31, 2010 | 1998 Mitsubishi Galant

1 Answer

I have a 1996 mitsubshi galant with a 2.4 motor check engine light comes on the code is 505 the car idles up and down at stop lights etc I did clean throttle body the problem went away after 3 weeks it is...


Bad idle air control valve. Most likely needs to be replaced. I'm guessing you have around 125K miles on your Galant, right? See other posts for solution.

Jun 24, 2010 | 1998 Mitsubishi Galant

2 Answers

I have a 2003 Mitsubishi Galant ES and after checking my oil, my service engine soon light came on, it is time for an oil change, can this be the reason for the light or is it something more?


if your talking about the check engine light being on, no, it will not come on because of oil service time. you may of left something off. if the dipstick or oil cap is loose this could set a code.

Nov 05, 2009 | 2003 Mitsubishi Galant

2 Answers

Idle air control valve


it is hooked up to your throttle body and there is no ceaning it just getting a new one good luck though the code for it is p0507

Dec 08, 2008 | 1999 Mitsubishi Galant

1 Answer

1999 galant o2 sensor


have you had the car scanned for codes? the light could be on for something other than the o2 sensor

Oct 15, 2008 | 1993 Mitsubishi Galant

1 Answer

99 galant check engine light


temporarly disconnected the battery.

Oct 15, 2008 | 1993 Mitsubishi Galant

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