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Jeep compass code p0488 comes on doesnt seem to affect anything cleaned carbon build up off egr & throttle butterfly no different

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Posted on Jan 02, 2017

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SOURCE: Check engine light came on codeP0401

He was right the passage way for the exhaust gases to flow through are plugged. There should be a plate you can unbolt on the intake that you will be able to clean the passages out.

Posted on Mar 07, 2009

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SOURCE: i have carbon build up in my throttle body and cnt

thats a sign that your car needs a few hoses changed, if you have a heavy right foot that would cause it

Posted on Nov 08, 2009

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How will I know if my throttle body need to be cleaned. On my 2002 yukon. .

When it starts sticking or when you or when you open the butterfly and see carbon and oil build up I clean mine every time I change plugs hope this helps

Feb 03, 2015 | Cars & Trucks

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2005 suzuki forenza code P0488

P0488 Exhaust Gas Recirculation Throttle Position Control Range/Performance
EGR failure.
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P0488 fault code on a 2008 outlander

just had this on my 2007 2.0 did outlander, replaced the egr throttle body which cleared fault code p0487 which i also had, but p0488 was a little more tricky to find out what it was, after searching the internet i checked the fuses, sure enough a 15a fuse had blown, about 6th from the right as you look at the fuse box with an engine symbol identifyng it. changed the fuse cleared the fault code job done, it seems a broken egr throttle body will blow this fuse according to my research. hope this helps someone.

Jul 10, 2012 | Mitsubishi Cars & Trucks

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Error code D0401 exhaust gas recirculation flow insufficient detected

on just about all of the ones that i have seen this code for there is carbon built up in the intake passage to the egr can look at the intake where the egr valve is and follow the passage to inside the throttle body and on the inside the throttle body behind the butterfly or the flap there is a hole or passage that goes to the egr that will get carbon built up in it and restrict the air flow from the egr valve......the hole or passage is on the top side of the throttle body and the way that i check the passage is with a small round mirror and a flashlight and find something or someone to hold the throttle open while i look for the blockage.....but before you go through all of this take a hand pump vac gauge and a piece of vac line and hook it up to the vac line to the egr valve.with the gauge all hooked up start the car and start pumping the vac gauge and see if the car will die and if it doesnt start looking for blockage in the intake........let me know if i can help you any further and let me and fixya know if i was any help to you and a thumbs up if i did help you in anyway........if you dont have access to these tools then to save a little money the charge to check this and to fix the carbon build up at my shop is not that expensive.........good luck and let me know how everything worked out..............thanks.......

Jun 22, 2011 | Toyota RAV4 Cars & Trucks

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1995 lumina. Runs fine. At in town speeds the service engine light never comes on. Once you reach highway speed the first time you deceletate the light appears until you stop the engine. Was told that the...

when a code is set for something it doesnt mean replace it, Egr system has an evr solonid that controlls the egr, There is rubber hoses that run between them some are plastic and break, Id have the hose checked and if its good replace evr solenoid

Jun 12, 2010 | 1995 Chevrolet Lumina

1 Answer

Wont start when warm without pumpin gas, and engine revving to high

A high rev problem is due to either carbon build up in the iac passage's not letting the iac close to normal idle or the iac is just bad and stuck in that position.

iac= idle air control solenoid

Inside the throttle body intake is a butterfly and just above that is a small opening that the iac uses to move air past the butterfly and this sometimes gets plugged with carbon build up so spray some carb cleaner down through the passage,and sometimes you have to remove the 4 bolts and take the throttle body off to clean them out.

Saturns are known for carbon problems,and they are hard on egr systems,I recommend using sea foam a couple times a year to help fight the carbon build up,just follow the direction and use it in the fuel and vaccum lines as directed but do it on a warm engine and let sit for a couple hours so the sea foam has time to loosen the carbon

May 31, 2010 | 2005 Saturn SC1

1 Answer

Idol to high

Try cleaning the throttle body, especially around the butterfly pivot pin, and the area where the butterfly sits in closed position. Over time, these areas are bad about carbon build-up. Once carbon gets built up, the butter fly can't completely close, which causes the throttle to still be open a little. This can cause higher idol (rpms). Very simple process. Buy throttle body cleaner for $6, remove your air intake hose from the intake. open your throttle and you're see the butterfly open and close. Spray the inside of intake, butterfly. You're see a lot of black carbon run out. wipe clean with a clean cloth. Repeat 2 more times until you don't see carbon running out. Put your intake hose back on, and you may have to turn the engine over a few times to dry the cleaner out. It's gonna sound like it don't want to start, but once the cleaner is dry, it will start and hopefully, this will solve your problem. Also, look at your throttle cable for any hoses, wire or anything to prevent the cable from closing the throttle.

Jan 07, 2010 | 1994 Honda Civic

1 Answer

I have a 1988 jeep wrangler that won't idle.

1. check for vaccuum leaks.
2. check for a check engine code
3. check the throttle body/butterfly plate for carbon build up.

Sep 09, 2009 | 1988 Jeep Wrangler

1 Answer

2004 Jeep Wrangler Rubicon stalling out

I've had this problem on vehicles with 70k or more miles on them. Symptoms include rough or uneven idle and dying. OBDII showes no codes.

Bad fuel, vacuum leak, low fuel pressure, carbon build up, inoperable fuel tank ventilation, poor grounding, low voltage, intermittent relay contacts are possibilities.

The simplest and mostly likely problem is:
Carbon build up inside the butterfly. With the engine off, pull the intake off. Use injector cleaner and a shop rag to clean the intake throat where the butterfly is. Use a plastic or wood handle to hold the butterfly open to get both sides cleaned. If this doesn't clear the problem, check for vacuum leaks, loose hoses etc.

Check fuel pressure and replace the fuel filter if it's low.

Aug 13, 2008 | 2004 Jeep Wrangler

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