Mitsubishi Montero DTC P0507

31 Oct 2014 | Author: | Comments Off on Mitsubishi Montero DTC P0507
Mitsubishi Montero

Questions and Answers

Q. Hello, My Engine Soon light on over 1 month ago. I the care to two different mechanics. said that they have to do a diagnostic check to locating the problem.

Anyway, received the same code: However, neither one could the source of the problem or anything appeared to be causing the problem. So, turned off the light and sent me on my

I dont know what to do and Im of paying for diagnostics with mechanics who say they just figure it out!

I believe my 2002 Mitsubishi Sport ES has an automatic transmission, I a 3.0 liter V-6 engine and 73,840 Please help with any if you can. Im so concerned and I will be a 600 mile trip very

Thanks,

Sylvia C.

A. DTC P0507 control system RPM higher expected indicates a problem in the Air Control Actuator (IAC) Here is some information on DTC

Idle Air Control (IAC) Circuit CIRCUIT OPERATION:

The air control (IAC) motor is supplied from the MFI relay 1).

The PCM (terminals 14,15, 28, 29) drives the motor by sequentially turning ON the transistors in the PCM and providing ground to the air control motor (terminals 1, 3, 4, 6).

DESCRIPTION:

The amount of air taken in idling is regulated by the opening and of the servo valve located in the air that bypasses the throttle

If there is a malfunction of the IAC system, the engine speed will not be to the target engine speed.

The PCM the difference between the actual speed and the target engine

DTC SET CONDITIONS:

Check Conditions:

speed has reached 1.5 kph (0.93 or more at least once.

Under the closed loop speed control.

Engine temperature is higher than (171#176;F).

Battery positive is higher than 10 volts.

pressure is higher than 76 kPa (11

Intake air temperature is higher -10#176;C (14#176;F).

Mitsubishi Montero

60 seconds elapsed from the start of the monitoring.

Target idle air motor position is 0 steps.

Judgment Criteria:

Actual speed has continued to be higher the target idle speed by 200 (300 r/min*) or more for 12 *: Specs in parentheses are applicable if the air temperature during the previous was more than 45#176;C .

TROUBLESHOOTING HINTS (The likely causes for this to be set are):

Idle air control failed.

Open or shorted air control motor circuit, or connector.

PCM failed.

There is a troubleshooting for checking the circuit and pinpointing the but before doing that I recommend cleaning the throttle first. Many times a cleaning will eliminate code.

If not, then the will need to be checked and is causing the problem repaired.

Information provided courtesy of and Warranty Direct

Back to 2006 Vincent T. Ciulla

Mitsubishi Montero
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