Question about 1993 Mitsubishi Eclipse

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Where is the IAC valve on my 1993 mitsubishi eclipse

My car is idling too high and i need to find the IAC valve to clean it out and hopefully fix the problem

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Posted on Jan 02, 2017

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SOURCE: car idles high after its warmed up

you have to check on the fast idle control valve or pcv if it needs cleaning or replacement. Also check on vacuum leaks.

Posted on Jun 25, 2009

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inkedsgt
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SOURCE: where is the iac located on a 1993 1.8 L eclipse

on the throttle plate assembly

Posted on Nov 30, 2009

ZJLimited
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SOURCE: 02 mitsubishi eclipse p507 code.

P0507 - Idle Air Control (IAC) System RPM Higher Than Expected

This P0507 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 P0507 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is greater than the desired (pre-programmed) RPM. In the case of GM vehicles (and possibly others) if the idle speed is over 200 rpm higher than expected, this code will be set.

Potential Symptoms: Most likely you'll notice the idle speed is higher than normal. 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 P0507 DTC trouble code may be caused by one or more of the following:
* A vacuum leak
* Leaking air intake after the throttle body
* EGR valve leaking vacuum
* A faulty positive crankcase ventilation (PCV) valve
* Damaged/failed/dirty throttle body
* Failed EVAP system
* Failed IAC (idle air controller) or faulty IAC circuit

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 the intake air system for air or vacuum leaks and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.

If you have an advanced scan tool that can interact with the car, command the idle higher and lower to see if the engine responds appropriately. Also check the PCV valve to see if it's blocked and needs to be replaced. Check the IAC (idle air controller) if equipped, verify it's operation. If available, try swapping in a new throttle body to see if that fixes the problem. On Nissan Altimas and possibly other vehicles the problem may be fixed by having the dealer perform an idle air relearn procedure, or other relearn procedures.

Hope helps.

Posted on Aug 17, 2010

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1 Answer

P1294 what would be the solution


Check the iac motor wiring ,if that looks ok its prob the iac motor itself ,this will cause probs with idling issues ,carbon builds up on the valve,this valve is located by the throttle plate in the back,below the tps sensor

Oct 12, 2011 | 1995 Mitsubishi Eclipse

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96 eclipse non-turbo idles way too high, disconnect MAP sensor it goes down but then idles rough


Yes by disconneting the map sensor will drop idle and make run rough, the problem is the idle air control valve or a vacuum leak, try to clean the throtlebody with an old tooth brush and some throtlebody spray cleaner if that doesnt help then try having the iac valve checked the iac valve (Idle air control valve ) if with the engine running listen for a hissing noise that will be a vacuum leak, these are the most common reasons for higher than normal idle. hope this is helpful.

Dec 05, 2010 | 1996 Mitsubishi Eclipse

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Adjustment Specification for the IAC Valve on a


This item is a self learning part. You will need to put the car in gear and have the emergency brake on. Also have your left foot on the brake pedal for the front brakes. Rev the RPMs up to 1200 & no more and hold it there for 5 minutes. That will set the IAC to the setting needed to idle. It is a computerized controlled item and the feature here presented to you will set the learning code to the computer

Jan 17, 2010 | 1995 Mitsubishi Eclipse

2 Answers

1993 Nissan 300ZX idles high 1800rpm cold or hot.


yes, thats the typical symptom of a IAC valve giving you trouble, try cleaning it up but ull probabbly will have to replace it
have fun
hope this helps

Nov 11, 2009 | 1993 Nissan 300ZX

1 Answer

Idle too high even when warm up around 1800 rpm replace iac valve


replace my motor on my 95 eclipes when i turn it on idle stays at 4,000 rpm what can i do

Oct 18, 2009 | 2002 Mitsubishi Eclipse

1 Answer

Car idles high after its warmed up but when its not warmed up it idles really low and kinda lopes 1995 mitsubishi eclipse GST


you have to check on the fast idle control valve or pcv if it needs cleaning or replacement. Also check on vacuum leaks.

Jun 25, 2009 | 1995 Mitsubishi Eclipse

1 Answer

Idle speed adjustment


the ecu drives a unit called an idle airspeed controller.if there is a vacuum leak,the computer will have the idle speed too high.
the IAC is a motor driven valve that controls airflow into the throttle body.it is common for idle speeds in the range of 1400rpm instead of 800 in this situation.
check the air filter,the throttle body cleaned,and the IAC has to be free moving.
also make sure that your coolant temperature sensor is accurate or the computer will think the engine is cold and keep the idle really high.

May 23, 2009 | 1993 Mitsubishi Diamante

1 Answer

P0505 code with my 2000 mitsubishi eclipse


You will need to replace the IAC (idle speed control airbypass valve) it is near the ythrottle valve in the intake, it has either a black or gray connector going to it, don't confuse it with the throttle position sensor.

Oct 05, 2008 | 2000 Mitsubishi Eclipse

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