Rough Idle - Focus Fanatics
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace



Go Back   Focus Fanatics > Ford Focus Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    
FocusFest Ford Focus Tire & Wheels FocusFanatics Merchandise

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 06-28-2007, 08:19 PM   #1
ChaosWarlord26
Focus Enthusiast
 
Join Date: Jun 2007
Fan#: 48372
Location: Warsaw, Ky
What I Drive: 2006 Dodge Ram 1500

Posts: 176
FF Reputation: 3 ChaosWarlord26 Good Standing Member
Buy-Sell-Trade Rating: (0)
Rough Idle

Ok I know the title says it all...oh know not another one of these. I am a new member to the forum but I have been search everyone's post for about 3 weeks now trying to figure out my problem. With no luck thus far here goes the thread.

The actual symptoms are that at idle is idling really rough almost like loping. It tries to die then comes back. It will do this in Park, Reverse, nuetral, or Drive only at stop. When driving the car runs great. good acceleration. But when I come to a stop light and just let it idle it messes up. I have noticed though that when it is idling rough if I turn on the AC the rpm's change and it quits temporarily.

Ok so I am driving a 2001 Focus Se. 2.0 SOHC. I have installed a Cold Air Intake (Short Ram) on it. I have taken it apart multiple time and made sure the was no leaks. I keep getting this code from the CEL with an OBD-II reader. (PO171) I know, System Fuel to Lean Bank 1. I have had the intake on it for more than 3 months prior to it acting this way.

What I have done so far is change the fuel filter, changed the Spark Plugs, Changed the O2 Sensor before the Cat. Tried different grades of fuel and fuel treatments. I have cleaned the MAF 3 times in the last week with CRC MAF cleaner.

My next steps are checking the fuel pressure at Idle. Does anyone know what the pressure is supposed to be at idle? Also does anyone else have any thoughts of what it could be? I am thinking that it could be a bad MAF, EGR Valve, IACV, or bad fuel Pump. Any help would be greatly appreciated. Thanks


ChaosWarlord26 is offline  
    Reply With Quote
 

Bookmarks & Social Networks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rough Idle and SES Codes chkpnt General Technical Chat 3 08-25-2007 12:14 AM
Rough Idle - 2002 ZX5 Zetec bajadog General Technical Chat 4 06-08-2007 11:30 AM
Rough Idle with AC on tminer250 General Technical Chat 1 06-05-2007 11:33 AM
JRSC rough idle with FC TB? dBlast General Forced Induction 5 04-18-2005 01:11 AM
rough idle CowsGoMoo ZETEC Performance (2000-2004) 9 10-16-2003 03:11 PM


All times are GMT -5. The time now is 05:35 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information : Site Map

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.