Question about Cars & Trucks

1 Answer

Adjustment Idle my mitsubishi colt idle mix screw does not seem to do anything ? How can I adjust the idle speed to increase it now ?

Posted by on

  • Rob Gee Jan 25, 2014

    thanks but I cannot accee

  • Rob Gee Jan 25, 2014

    oops! sorry bout that! I cannot access that screw, it is unreachable in present location. I am also not able to adjust the wax pellet via its own adjustment as I do not have a tool that goes round corners... Any other way I can change idle speed, other thsn by changing timing, which Ive done already (but not enough adjustment avail). Thanks for yr help.

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Cars & Trucks Master
  • 44,391 Answers

There will be a screw on the throttle shaft that can be used to adjust idle rpm but you should find out why the idle mixture screw is not making a difference. Check for vacuum leaks in all the lines and manifold gaskets.

Posted on Nov 20, 2013

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
emissionwiz
  • 76649 Answers

SOURCE: where is adjustment for idle located in 528

Idle speed is not adjustable, it is controlled by the fuel injection computer, even if you tried to adjust it the computer would over ride any adjustment made by you. I assure you idle speed has negligible affect on fuel consumption

Posted on Sep 08, 2008

Mmurad
  • 46 Answers

SOURCE: base idle speed adjustment....1KZ-TE 3.0 litre turbo.

Hi djay ,you need to check the vacuum pipes beneath the injector pump it they are intact and test them with a vacuum gauge. The work of this vacuum is such that when you put it drive the vacuum increases the idle speed slightly.

Posted on Dec 09, 2008

keemo68
  • 1263 Answers

SOURCE: Idle Adjustment Screw Location on 96 Civic

your idle can not be manually adjusted. it is controled by the ecm via the throttle position sensor on the throttle body(tps). you have to have a diagnostic scanner to interface with the ecm to adjust the idle. most service shops have this equipment

Posted on May 12, 2009

  • 1348 Answers

SOURCE: 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.

Posted on May 23, 2009

Molson02536
  • 3854 Answers

SOURCE: How to I set idle speed?

Before performing any on-vehicle adjustments to fuel or ignition systems, ensure engine mechanical condition is okay. CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Drive ability problems may exist until computer systems have completed a relearn cycle.
IDLE SPEED & MIXTURE
NOTE: Idle mixture is controlled by Powertrain Control Module (PCM). Adjustment is not possible. After replacement of Idle Air Control (IAC) valve, system must be cycled as identified for PCM to properly control idle speed. If idle speed is not okay after cycling system, problem is usually caused by a dirty throttle plate or vacuum leaks. Ensure all vacuum components are functioning properly.

IDLE SPEED (4-CYLINDER)
Turn ignition on with engine off for 10 seconds. Turn ignition off for 10 seconds. Start engine and idle for 30 seconds. Slowly vary engine speed between idle and 3500 RPM 5 times. Return engine to idle. PCM will now properly control idle speed. 2.2L (Cavalier & Sunfire) & 2.4L (Alero, Cavalier, Grand Am & Sunfire)  Good luck and hope this helps. If it still has the high idle problem, your going to have to buy a can  if not two cans ot THROTTLE BODY CLEANER NOT CARBURATOR CLEANER. Just follow the instruction on the can and try to get the Idle Air Control Valve cleaned also which is on the sdie of the throttle body so go to town when cleaning the throttle body and then do the Idle speed relearn again. The other thing to is since your doing house cleaning, buy a MAF sensor cleaner and spray down your MAF sensor and IAT sensor also, this will help with your fuell consumption. 

Good luck and keep me posted, be glad to help.

Posted on Jul 04, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Location of idle adjustment screw on 2005 Mitsubishi galant


No such thing! Idle speed is controlled by the idle air motor and the ECU.

Oct 06, 2014 | 2005 Mitsubishi Galant

1 Answer

Idle adjustment problem


If the idle mixture screw ( idle screw) does not make a difference it is because the idle circuit is blocked . Check the jets for dirt / water . Blow out the system with compressed air.. The mixture is already set by the time it gets to the screw and you are only increasing or decreasing the volume allowed into the engine . There will be no "O" ring but there should be a spring under the head of the screw.

Jan 20, 2014 | 1994 Honda Accord

1 Answer

4m4 engine has low rpm (+/- 800 )


Hi Kevin, It would seem you have a problem with the injector pump on your 4M40 engine. There are two types of pump fitted to these engines, one is mechanical and can be adjusted on top of the pump by means of the throttle stop screw (which is the screw seen which the throttle lever touches when the engine is at idle) It is a ten mm bolt and has a locking nut holding which must be released before adjustment. The electronic pump cannot be adjusted and must be serviced and adjusted externally by removing the pump and having it set with a program. Regards John

May 01, 2012 | Mitsubishi Pajero Cars & Trucks

1 Answer

2003 mitsubishi outlander code P0507 how do I fix?


SOUNDS LIKE THE IDLE IS TOO HIGH! YOU CAN ADJUST THIS AT THROTTLE! YOU'LL SEE A PLATE WHERE THE CABLE IS ON TOP OF MOTOR! IF YOU MOVE THAT PLATE, THE IDLE WILL INCREASE! IN BACK OF THAT PLATE IS AN ADJUSTMENT SCREW! TURN IT OUT, AND THE IDLE WILL DECREASE!

Feb 21, 2011 | 2003 Mitsubishi Outlander

1 Answer

The vehicle engine is shut off immediately when you release the acceration pedal


PROMLEM MAY BE BECAUSE LOW IDLE SPEED ADJUSTMENT. INCREASE THE LOW SPEED/ IDLE SPEED BY INCREASING THE FUEL INTAKE . IN CARBURATOR VEH. ADJUST THE IDLE SCREW CLOCKWISE. IF IT IS FUEL INJECTOR INCREASE THE FUEL AT PUMP ITSELF.

Nov 19, 2010 | Isuzu i-280 Cars & Trucks

1 Answer

The engine in my 1994 jeep grand cherokee 4.0 idles very low (below 400 r.p.m's) when it sits still, Can I idle it up....how??


The idle speed adjustment on most fuel injected vehicles is located in a recessed hole near the throttle butterfly on the intake manifold(sometimes with a plug in it). Screwing out the adjusting screw should increase idle speed.

Aug 18, 2010 | 1994 Jeep Grand Cherokee

1 Answer

Need to know how to adjust a carb on the 2.5L. I'm having a problem with too much gas getting into the chambers and drenching my spark plugs. I can also smell a lot of gas coming out of the exhaust. I...


the air fuel adjustment has little to do with what u have going on, but here is what u do, make sure the engine is at normal operating temp temperature (at least 185F) then verify idle speed is set to spec +or- 50 RPM, then turn the carb mixture adjusment screw in until the idle speed starts to drop off, then turn it back out until the idle speed increases to its highest point (u will need a hand held tachometer), when u have reached the highest idle turn the idle screw back in 1/4 trun, that is lean best idle.

Mar 19, 2010 | 1985 GMC S-15

1 Answer

Carburator tune up of charadade 1992 sedan. The engine is running too fast while idle at 1200 r.p.m.


Before you start check the status of your choke. One that is stuck on will cause a high idle. If the choke checks out, proceed to the following:


You should have what's called a 2 needle carburetor. A larger screw adjustment for idle, and a smaller for high speed.

Start by adjusting your low speed (idle) needle until you reach the desired idle. I prefer about 850rpms. Do this with the engine running and adequately warmed so that your adjustments are not thrown off by the automatic choke.

Next slowly open up the high speed needle. As you open it your idle speed will gradually increase. Adust it in 1/8 turn increments, pausing after each adjustment to allow the changes to take affect. Keep opening it until you stop increasing your rpms, then take it back 1/8 of a turn.

Next readjust your idle mixture screw so that your idle is back down to 850rpms.

Apr 29, 2009 | 1992 Daihatsu Charade

2 Answers

Base idle speed adjustment....1KZ-TE 3.0 litre turbo.


Hi djay,
the idle speed control can be adjusted on the pump by turning the adjusting screw that stops the accelerator lever.
Cheers

Aug 19, 2008 | 1996 Toyota Land Cruiser

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

95 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76649 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...